Pavlović, Vladimir B.

Link to this page

Authority KeyName Variants
orcid::0000-0002-1138-0331
  • Pavlović, Vladimir B. (288)
  • Pavlović, Vladimir (2)
Projects
Directed synthesis, structure and properties of multifunctional materials Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200175 (Institute of Technical Sciences of SASA, Belgrade)
United States National Aeronautics and Space Administration (NASA), Grant NNX09AV07A United States National Science Foundation (NSF) / Centers of Research Excellence in Science and Technology (CREST), Grant HRD-0833184
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200116 (University of Belgrade, Faculty of Agriculture) Investigation of the relation in triad: Synthesis structure-properties for functional materials
United States National Science Foundation (NSF) / Partnerships for Research and Education in Materials (PREM), Grant 1523617 Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200135 (University of Belgrade, Faculty of Technology and Metallurgy)
Development and application of multifunctional materials using domestic raw materials in upgraded processing lines Synthesis, processing and characterization of nanostructured materials for application in the field of energy, mechanical engineering, environmental protection and biomedicine
Zero- to Three-Dimensional Nanostructures for Application in Electronics and Renewable Energy Sources: Synthesis, Characterization and Processing Lithium-ion batteries and fuel cells - research and development
Synthesis, processing and applications of nanostructured multifunctional materials with defined properties Size-, shape- and structure- dependent properties of nanoparticles and nanocomposites
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200017 (University of Belgrade, Institute of Nuclear Sciences 'Vinča', Belgrade-Vinča) Molecular designing of nanoparticles with controlled morphological and physicochemical characteristics and functional materials based on them
Functional, Functionalized and Advanced Nanomaterials Ministry of Education, Youth and Sports (MEYS) of Czech Republic - CEITEC 2020 [LQ1601]
Serbian Academy of Sciences and Arts, Project F-198 Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200026 (University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM)
Materials of Reduced Dimensions for Efficient Light Harvesting and Energy conversion Bilateral cooperation between Serbia and France, No. 4510339/2016/09/03 “Inteligent econanomaterials and nanocomposites”
Grant Agency of the Czech Republic, Project 15-06390S Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200105 (University of Belgrade, Faculty of Mechanical Engineering)
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200168 (University of Belgrade, Faculty of Chemistry) National Science Foundation, North Carolina State University, Project No. HRD-1345219
Czech Science Foundation (GACR) - 17-05620S Investigation of intermetallics and semiconductors and possible application in renewable energy sources
Investigation of the effect of parameters of synthesis and processing on dielectric, optical and magnetic properties, both bulk and surface of crystal and polymeric systems Geologic and ecotoxicologic research in identification of geopathogen zones of toxic elements in drinking water reservoirs- research into methods and procedures for reduction of biochemical anomalies

Author's Bibliography

Structural characteristics of MgAl2O4 spinel

Peleš Tadić, Adriana; Živojinović, Jelena; Tadić, Nenad; Lević, Steva; Marković, Smilja; Pavlović, Vladimir B.; Filipović, Suzana; Obradović, Nina

(Belgrade : Serbian Ceramic Society, 2023)

TY  - CONF
AU  - Peleš Tadić, Adriana
AU  - Živojinović, Jelena
AU  - Tadić, Nenad
AU  - Lević, Steva
AU  - Marković, Smilja
AU  - Pavlović, Vladimir B.
AU  - Filipović, Suzana
AU  - Obradović, Nina
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/15759
AB  - Magnesium aluminate spinel (MgAl2O4) is a material with good mechanical, chemical, and thermal properties, low dielectric permeability and loss tangent. Based on those properties, MgAl2O4 has found a significant application in refractory ceramics, ceramics windows, integrated electronic devices, etc. Also, it possesses a high chemical and radiation resistance. In this research, MgO was calcined at 1000ºC for an hour, with a step of 10ºC/min to avoid presence of hydroxide or carbonate. MgO and Al2O3 powders were mixed in a one-to-one molar ratio afterwards. The powders were mechanically activated for 15, 30, and 60 minutes. The mass ratio of powder and balls was 1:40. The mechanically activated powders are pressed in the tablets, under the pressure of 0.5 t. The pressed powders were heated up to 1300 ºC with a step of 10 ºC/min and held for 1 h for the reaction. Reacted pellets were crushed and sieved. Obtained spinel powders were sintered at 1450 ºC for 2 h. Both sintered and non-sintered samples were investigated by XRD and SEM. The particle size distribution of the reacted powders was investigated by laser diffraction analysis. Raman spectroscopy was used to determine the lattice vibration in the sintered samples. All results are in accordance with our previous results, and the pure dense spinel phase is obtained.
PB  - Belgrade : Serbian Ceramic Society
C3  - Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023
T1  - Structural characteristics of MgAl2O4 spinel
SP  - 52
EP  - 52
UR  - https://hdl.handle.net/21.15107/rcub_dais_15759
ER  - 
@conference{
author = "Peleš Tadić, Adriana and Živojinović, Jelena and Tadić, Nenad and Lević, Steva and Marković, Smilja and Pavlović, Vladimir B. and Filipović, Suzana and Obradović, Nina",
year = "2023",
abstract = "Magnesium aluminate spinel (MgAl2O4) is a material with good mechanical, chemical, and thermal properties, low dielectric permeability and loss tangent. Based on those properties, MgAl2O4 has found a significant application in refractory ceramics, ceramics windows, integrated electronic devices, etc. Also, it possesses a high chemical and radiation resistance. In this research, MgO was calcined at 1000ºC for an hour, with a step of 10ºC/min to avoid presence of hydroxide or carbonate. MgO and Al2O3 powders were mixed in a one-to-one molar ratio afterwards. The powders were mechanically activated for 15, 30, and 60 minutes. The mass ratio of powder and balls was 1:40. The mechanically activated powders are pressed in the tablets, under the pressure of 0.5 t. The pressed powders were heated up to 1300 ºC with a step of 10 ºC/min and held for 1 h for the reaction. Reacted pellets were crushed and sieved. Obtained spinel powders were sintered at 1450 ºC for 2 h. Both sintered and non-sintered samples were investigated by XRD and SEM. The particle size distribution of the reacted powders was investigated by laser diffraction analysis. Raman spectroscopy was used to determine the lattice vibration in the sintered samples. All results are in accordance with our previous results, and the pure dense spinel phase is obtained.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023",
title = "Structural characteristics of MgAl2O4 spinel",
pages = "52-52",
url = "https://hdl.handle.net/21.15107/rcub_dais_15759"
}
Peleš Tadić, A., Živojinović, J., Tadić, N., Lević, S., Marković, S., Pavlović, V. B., Filipović, S.,& Obradović, N.. (2023). Structural characteristics of MgAl2O4 spinel. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023
Belgrade : Serbian Ceramic Society., 52-52.
https://hdl.handle.net/21.15107/rcub_dais_15759
Peleš Tadić A, Živojinović J, Tadić N, Lević S, Marković S, Pavlović VB, Filipović S, Obradović N. Structural characteristics of MgAl2O4 spinel. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023. 2023;:52-52.
https://hdl.handle.net/21.15107/rcub_dais_15759 .
Peleš Tadić, Adriana, Živojinović, Jelena, Tadić, Nenad, Lević, Steva, Marković, Smilja, Pavlović, Vladimir B., Filipović, Suzana, Obradović, Nina, "Structural characteristics of MgAl2O4 spinel" in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023 (2023):52-52,
https://hdl.handle.net/21.15107/rcub_dais_15759 .

Hybrid Nanoscale Materials for Convergent Technologies

Pavlović, Vladimir B.; Vuković, G.; Nikolić, M.; Pavlović, Vera P.; Perić, M.; Nenadović, S.; Ivanović, M.; Mirković, M.; Đoković, V.; Knežević, S.; Šuljagić, Marija; Anđelković, Lj.; Janićijević, Aleksandra; Kovačević, D.; Filipović, Suzana; Vujančević, Jelena; Vlahović, Branislav

(Belgrade : Serbian Ceramic Society, 2023)

TY  - CONF
AU  - Pavlović, Vladimir B.
AU  - Vuković, G.
AU  - Nikolić, M.
AU  - Pavlović, Vera P.
AU  - Perić, M.
AU  - Nenadović, S.
AU  - Ivanović, M.
AU  - Mirković, M.
AU  - Đoković, V.
AU  - Knežević, S.
AU  - Šuljagić, Marija
AU  - Anđelković, Lj.
AU  - Janićijević, Aleksandra
AU  - Kovačević, D.
AU  - Filipović, Suzana
AU  - Vujančević, Jelena
AU  - Vlahović, Branislav
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/15760
AB  - The convergence of nano-, bio-, and information technologies is based on the understanding of complex hierarchical structures and systems, as well as on the material unity at the nanoscale and on technology integration from that scale. A growing interest in these technologies is a result of their potential to provide solutions to numerous societal challenges, such as advanced healthcare, environmental remediation, sustainable development, and adoption of cyber-physical systems based on the Internet of Things and the Internet of Systems. Taking into account that hybrid nanomaterials possess extraordinary physical and chemical properties derived from their size in the nanoscale, the aim of this work is to present the connection between processing parameters and multifunctional properties of nano scale hybrid materials, focusing on the study of ceramic-polymer structures before they can be nano-engineered into functional devices. The unique functionality of these nanostructures has enabled their applications in numerous devices such as: micro and nano-electro-mechanical systems (MEMS/NEMS), sensors, microactuators, surface acoustic wave devices, polymer electrolyte membrane fuel cells, switches, thermistors, resonators and filters, electrooptic devices, etc. In this study special attention has been paid to their applications in the fields of electronics, biotechnology, environmental protection and remediation.
PB  - Belgrade : Serbian Ceramic Society
C3  - Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023
T1  - Hybrid Nanoscale Materials for Convergent Technologies
SP  - 45
EP  - 45
UR  - https://hdl.handle.net/21.15107/rcub_dais_15760
ER  - 
@conference{
author = "Pavlović, Vladimir B. and Vuković, G. and Nikolić, M. and Pavlović, Vera P. and Perić, M. and Nenadović, S. and Ivanović, M. and Mirković, M. and Đoković, V. and Knežević, S. and Šuljagić, Marija and Anđelković, Lj. and Janićijević, Aleksandra and Kovačević, D. and Filipović, Suzana and Vujančević, Jelena and Vlahović, Branislav",
year = "2023",
abstract = "The convergence of nano-, bio-, and information technologies is based on the understanding of complex hierarchical structures and systems, as well as on the material unity at the nanoscale and on technology integration from that scale. A growing interest in these technologies is a result of their potential to provide solutions to numerous societal challenges, such as advanced healthcare, environmental remediation, sustainable development, and adoption of cyber-physical systems based on the Internet of Things and the Internet of Systems. Taking into account that hybrid nanomaterials possess extraordinary physical and chemical properties derived from their size in the nanoscale, the aim of this work is to present the connection between processing parameters and multifunctional properties of nano scale hybrid materials, focusing on the study of ceramic-polymer structures before they can be nano-engineered into functional devices. The unique functionality of these nanostructures has enabled their applications in numerous devices such as: micro and nano-electro-mechanical systems (MEMS/NEMS), sensors, microactuators, surface acoustic wave devices, polymer electrolyte membrane fuel cells, switches, thermistors, resonators and filters, electrooptic devices, etc. In this study special attention has been paid to their applications in the fields of electronics, biotechnology, environmental protection and remediation.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023",
title = "Hybrid Nanoscale Materials for Convergent Technologies",
pages = "45-45",
url = "https://hdl.handle.net/21.15107/rcub_dais_15760"
}
Pavlović, V. B., Vuković, G., Nikolić, M., Pavlović, V. P., Perić, M., Nenadović, S., Ivanović, M., Mirković, M., Đoković, V., Knežević, S., Šuljagić, M., Anđelković, Lj., Janićijević, A., Kovačević, D., Filipović, S., Vujančević, J.,& Vlahović, B.. (2023). Hybrid Nanoscale Materials for Convergent Technologies. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023
Belgrade : Serbian Ceramic Society., 45-45.
https://hdl.handle.net/21.15107/rcub_dais_15760
Pavlović VB, Vuković G, Nikolić M, Pavlović VP, Perić M, Nenadović S, Ivanović M, Mirković M, Đoković V, Knežević S, Šuljagić M, Anđelković L, Janićijević A, Kovačević D, Filipović S, Vujančević J, Vlahović B. Hybrid Nanoscale Materials for Convergent Technologies. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023. 2023;:45-45.
https://hdl.handle.net/21.15107/rcub_dais_15760 .
Pavlović, Vladimir B., Vuković, G., Nikolić, M., Pavlović, Vera P., Perić, M., Nenadović, S., Ivanović, M., Mirković, M., Đoković, V., Knežević, S., Šuljagić, Marija, Anđelković, Lj., Janićijević, Aleksandra, Kovačević, D., Filipović, Suzana, Vujančević, Jelena, Vlahović, Branislav, "Hybrid Nanoscale Materials for Convergent Technologies" in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023 (2023):45-45,
https://hdl.handle.net/21.15107/rcub_dais_15760 .

Dielectric and Structural Properties of the Hybrid Material Polyvinylidene Fluoride-Bacterial Nanocellulose-Based Composite

Janićijević, Aleksandra; Filipović, Suzana; Sknepnek, Aleksandra; Vlahović, Branislav; Đorđević, Nenad; Kovacević, Danijela; Mirković, Miljana; Petronijević, Ivan; Živković, Predrag; Rogan, Jelena; Pavlović, Vladimir B.

(Basel : MDPI, 2023)

TY  - JOUR
AU  - Janićijević, Aleksandra
AU  - Filipović, Suzana
AU  - Sknepnek, Aleksandra
AU  - Vlahović, Branislav
AU  - Đorđević, Nenad
AU  - Kovacević, Danijela
AU  - Mirković, Miljana
AU  - Petronijević, Ivan
AU  - Živković, Predrag
AU  - Rogan, Jelena
AU  - Pavlović, Vladimir B.
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/15363
AB  - In the search for environmentally friendly materials with a wide range of properties, polymer composites have emerged as a promising alternative due to their multifunctional properties. This study focuses on the synthesis of composite materials consisting of four components: bacterial nanocellulose (BNC) modified with magnetic Fe3O4, and a mixture of BaTiO3 (BT) and polyvinylidene fluoride (PVDF). The BT powder was mechanically activated prior to mixing with PVDF. The influence of BT mechanical activation and BNC with magnetic particles on the PVDF matrix was investigated. The obtained composite films’ structural characteristics, morphology, and dielectric properties are presented. This research provides insights into the relationship between mechanical activation of the filler and structural and dielectric properties in the PVDF/BT/BNC/Fe3O4 system, creating the way for the development of materials with a wide range of diverse properties that support the concept of green technologies.
PB  - Basel : MDPI
T2  - Polymers
T1  - Dielectric and Structural Properties of the Hybrid Material Polyvinylidene Fluoride-Bacterial Nanocellulose-Based Composite
SP  - 4080
VL  - 15
IS  - 20
DO  - 10.3390/polym15204080
UR  - https://hdl.handle.net/21.15107/rcub_dais_15363
ER  - 
@article{
author = "Janićijević, Aleksandra and Filipović, Suzana and Sknepnek, Aleksandra and Vlahović, Branislav and Đorđević, Nenad and Kovacević, Danijela and Mirković, Miljana and Petronijević, Ivan and Živković, Predrag and Rogan, Jelena and Pavlović, Vladimir B.",
year = "2023",
abstract = "In the search for environmentally friendly materials with a wide range of properties, polymer composites have emerged as a promising alternative due to their multifunctional properties. This study focuses on the synthesis of composite materials consisting of four components: bacterial nanocellulose (BNC) modified with magnetic Fe3O4, and a mixture of BaTiO3 (BT) and polyvinylidene fluoride (PVDF). The BT powder was mechanically activated prior to mixing with PVDF. The influence of BT mechanical activation and BNC with magnetic particles on the PVDF matrix was investigated. The obtained composite films’ structural characteristics, morphology, and dielectric properties are presented. This research provides insights into the relationship between mechanical activation of the filler and structural and dielectric properties in the PVDF/BT/BNC/Fe3O4 system, creating the way for the development of materials with a wide range of diverse properties that support the concept of green technologies.",
publisher = "Basel : MDPI",
journal = "Polymers",
title = "Dielectric and Structural Properties of the Hybrid Material Polyvinylidene Fluoride-Bacterial Nanocellulose-Based Composite",
pages = "4080",
volume = "15",
number = "20",
doi = "10.3390/polym15204080",
url = "https://hdl.handle.net/21.15107/rcub_dais_15363"
}
Janićijević, A., Filipović, S., Sknepnek, A., Vlahović, B., Đorđević, N., Kovacević, D., Mirković, M., Petronijević, I., Živković, P., Rogan, J.,& Pavlović, V. B.. (2023). Dielectric and Structural Properties of the Hybrid Material Polyvinylidene Fluoride-Bacterial Nanocellulose-Based Composite. in Polymers
Basel : MDPI., 15(20), 4080.
https://doi.org/10.3390/polym15204080
https://hdl.handle.net/21.15107/rcub_dais_15363
Janićijević A, Filipović S, Sknepnek A, Vlahović B, Đorđević N, Kovacević D, Mirković M, Petronijević I, Živković P, Rogan J, Pavlović VB. Dielectric and Structural Properties of the Hybrid Material Polyvinylidene Fluoride-Bacterial Nanocellulose-Based Composite. in Polymers. 2023;15(20):4080.
doi:10.3390/polym15204080
https://hdl.handle.net/21.15107/rcub_dais_15363 .
Janićijević, Aleksandra, Filipović, Suzana, Sknepnek, Aleksandra, Vlahović, Branislav, Đorđević, Nenad, Kovacević, Danijela, Mirković, Miljana, Petronijević, Ivan, Živković, Predrag, Rogan, Jelena, Pavlović, Vladimir B., "Dielectric and Structural Properties of the Hybrid Material Polyvinylidene Fluoride-Bacterial Nanocellulose-Based Composite" in Polymers, 15, no. 20 (2023):4080,
https://doi.org/10.3390/polym15204080 .,
https://hdl.handle.net/21.15107/rcub_dais_15363 .

Morphological and Structural Characterization of MgAl2O4 Spinel

Obradović, Nina; Filipović, Suzana; Fahrenholtz, William G.; Marinković, Bojan A.; Rogan, Jelena; Lević, Steva; Đorđević, Antonije; Pavlović, Vladimir B.

(ETRAN, 2023)

TY  - JOUR
AU  - Obradović, Nina
AU  - Filipović, Suzana
AU  - Fahrenholtz, William G.
AU  - Marinković, Bojan A.
AU  - Rogan, Jelena
AU  - Lević, Steva
AU  - Đorđević, Antonije
AU  - Pavlović, Vladimir B.
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/14704
AB  - Magnesium aluminate has the spinel structure along with good mechanical, chemical, and thermal properties. Magnesium aluminate has a wide range of applications including refractory ceramics, optically transparent ceramic windows, and armors. Its low dielectric permeability and low loss tangent enable its applications for integrated electronic devices, as well. In this paper, MgO and Al2O3 powders were mixed in a one-to-one molar ratio and calcined at temperatures ranging from 1500 to 1800°C to produce phase pure spinel. Thereafter, pellets were crushed and treated in a planetary ball mill for 60 min to obtain a fine powder. All powders were examined for phase composition, crystal structure, and morphology. The obtained results showed that by increasing the temperature, samples with higher density were synthesized. Milling for 1 h led to formation of larger particles, but finer powders after milling. XRPD and Raman spectroscopy showed disorder in the crystal structure after milling.
AB  - Магнезијум алуминат поседује структуру спинела и добра механичка, хемијска и термичка својства. Има широк спектар примене, укључујући рефракторну керамику, оружје и оптички транспарентна керамичка стакла. Ниска диелектрична пермеабилност и тангенс губитака пружају овој керамици примену и у електричним направама. У овом раду, прахови MgO и Al2O3 су помешани у моларном односу 1:1 и калцинисани на температурама између 1500°C и 1800°C да би се добио спинел. Након тога, узорци су смрвљени и механички активирани у млину током 60 минута да би се добио фини уситњен прах. Одређени су фазни састав, кристална структура и морфологија свих прахова. Резултати су показали да са порастом температуре расте и густина синтетисаних узорака. Млевење од 1 сата води ка формирању већих честица, али финијих прахова након млевења. XRPD и Раман спектроскопија указују на неуређену кристалну структуру након млевења.
PB  - ETRAN
T2  - Science of Sintering
T1  - Morphological and Structural Characterization of MgAl2O4 Spinel
SP  - 1
EP  - 10
VL  - 55
IS  - 1
DO  - 10.2298/SOS2301001O
UR  - https://hdl.handle.net/21.15107/rcub_dais_14704
ER  - 
@article{
author = "Obradović, Nina and Filipović, Suzana and Fahrenholtz, William G. and Marinković, Bojan A. and Rogan, Jelena and Lević, Steva and Đorđević, Antonije and Pavlović, Vladimir B.",
year = "2023",
abstract = "Magnesium aluminate has the spinel structure along with good mechanical, chemical, and thermal properties. Magnesium aluminate has a wide range of applications including refractory ceramics, optically transparent ceramic windows, and armors. Its low dielectric permeability and low loss tangent enable its applications for integrated electronic devices, as well. In this paper, MgO and Al2O3 powders were mixed in a one-to-one molar ratio and calcined at temperatures ranging from 1500 to 1800°C to produce phase pure spinel. Thereafter, pellets were crushed and treated in a planetary ball mill for 60 min to obtain a fine powder. All powders were examined for phase composition, crystal structure, and morphology. The obtained results showed that by increasing the temperature, samples with higher density were synthesized. Milling for 1 h led to formation of larger particles, but finer powders after milling. XRPD and Raman spectroscopy showed disorder in the crystal structure after milling., Магнезијум алуминат поседује структуру спинела и добра механичка, хемијска и термичка својства. Има широк спектар примене, укључујући рефракторну керамику, оружје и оптички транспарентна керамичка стакла. Ниска диелектрична пермеабилност и тангенс губитака пружају овој керамици примену и у електричним направама. У овом раду, прахови MgO и Al2O3 су помешани у моларном односу 1:1 и калцинисани на температурама између 1500°C и 1800°C да би се добио спинел. Након тога, узорци су смрвљени и механички активирани у млину током 60 минута да би се добио фини уситњен прах. Одређени су фазни састав, кристална структура и морфологија свих прахова. Резултати су показали да са порастом температуре расте и густина синтетисаних узорака. Млевење од 1 сата води ка формирању већих честица, али финијих прахова након млевења. XRPD и Раман спектроскопија указују на неуређену кристалну структуру након млевења.",
publisher = "ETRAN",
journal = "Science of Sintering",
title = "Morphological and Structural Characterization of MgAl2O4 Spinel",
pages = "1-10",
volume = "55",
number = "1",
doi = "10.2298/SOS2301001O",
url = "https://hdl.handle.net/21.15107/rcub_dais_14704"
}
Obradović, N., Filipović, S., Fahrenholtz, W. G., Marinković, B. A., Rogan, J., Lević, S., Đorđević, A.,& Pavlović, V. B.. (2023). Morphological and Structural Characterization of MgAl2O4 Spinel. in Science of Sintering
ETRAN., 55(1), 1-10.
https://doi.org/10.2298/SOS2301001O
https://hdl.handle.net/21.15107/rcub_dais_14704
Obradović N, Filipović S, Fahrenholtz WG, Marinković BA, Rogan J, Lević S, Đorđević A, Pavlović VB. Morphological and Structural Characterization of MgAl2O4 Spinel. in Science of Sintering. 2023;55(1):1-10.
doi:10.2298/SOS2301001O
https://hdl.handle.net/21.15107/rcub_dais_14704 .
Obradović, Nina, Filipović, Suzana, Fahrenholtz, William G., Marinković, Bojan A., Rogan, Jelena, Lević, Steva, Đorđević, Antonije, Pavlović, Vladimir B., "Morphological and Structural Characterization of MgAl2O4 Spinel" in Science of Sintering, 55, no. 1 (2023):1-10,
https://doi.org/10.2298/SOS2301001O .,
https://hdl.handle.net/21.15107/rcub_dais_14704 .

Effect of the Deposition of Vanadium-Oxide on the Photocatalytic Activity of TiO2 Nanotubes and Its Photodiode Performance Interfaced with CH3NH3PbI3 Single Crystal

Vujančević, Jelena; Andričević, Pavao; Đokić, Veljko; Blagojević, Vladimir A.; Pavlović, Vera P.; Ćirković, Jovana; Horváth, Endre; Forró, László; Karoui, Abdennaceur; Pavlović, Vladimir B.; Janaćković, Đorđe

(MDPI, 2023)

TY  - JOUR
AU  - Vujančević, Jelena
AU  - Andričević, Pavao
AU  - Đokić, Veljko
AU  - Blagojević, Vladimir A.
AU  - Pavlović, Vera P.
AU  - Ćirković, Jovana
AU  - Horváth, Endre
AU  - Forró, László
AU  - Karoui, Abdennaceur
AU  - Pavlović, Vladimir B.
AU  - Janaćković, Đorđe
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/14229
AB  - In this study, we report the influence of vanadium oxide (VO), as a photosensitive component, on the photoactivity of TiO2 nanotubes (TNTs). A series of TNTs of varying tube diameter were synthesized by the anodization of titanium foils at different voltages, while vanadium oxide was deposited on TNTs by wet chemical deposition. An improvement in the optical properties of nanotubes was observed after the deposition of vanadium oxide. An improvement in the optical properties (redshift in UV-Vis spectra) of TNTs and TNT/VO was noted. The photocatalytic activity was improved with increasing tube diameter, while it was weakened after the deposition of VO. Furthermore, photoactivity was investigated in photodiodes based on TNTs or TNT/VO and single crystals of CH3NH3PbI3. The photoelectric measurement revealed that different TNT diameters did not influence the I-V characteristic of the photodiodes, while the deposition of VO improved the photocurrent for smaller TNTs.
PB  - MDPI
T2  - Catalysts
T1  - Effect of the Deposition of Vanadium-Oxide on the Photocatalytic Activity of TiO2 Nanotubes and Its Photodiode Performance Interfaced with CH3NH3PbI3 Single Crystal
SP  - 352
VL  - 13
IS  - 2
DO  - 10.3390/catal13020352
UR  - https://hdl.handle.net/21.15107/rcub_dais_14229
ER  - 
@article{
author = "Vujančević, Jelena and Andričević, Pavao and Đokić, Veljko and Blagojević, Vladimir A. and Pavlović, Vera P. and Ćirković, Jovana and Horváth, Endre and Forró, László and Karoui, Abdennaceur and Pavlović, Vladimir B. and Janaćković, Đorđe",
year = "2023",
abstract = "In this study, we report the influence of vanadium oxide (VO), as a photosensitive component, on the photoactivity of TiO2 nanotubes (TNTs). A series of TNTs of varying tube diameter were synthesized by the anodization of titanium foils at different voltages, while vanadium oxide was deposited on TNTs by wet chemical deposition. An improvement in the optical properties of nanotubes was observed after the deposition of vanadium oxide. An improvement in the optical properties (redshift in UV-Vis spectra) of TNTs and TNT/VO was noted. The photocatalytic activity was improved with increasing tube diameter, while it was weakened after the deposition of VO. Furthermore, photoactivity was investigated in photodiodes based on TNTs or TNT/VO and single crystals of CH3NH3PbI3. The photoelectric measurement revealed that different TNT diameters did not influence the I-V characteristic of the photodiodes, while the deposition of VO improved the photocurrent for smaller TNTs.",
publisher = "MDPI",
journal = "Catalysts",
title = "Effect of the Deposition of Vanadium-Oxide on the Photocatalytic Activity of TiO2 Nanotubes and Its Photodiode Performance Interfaced with CH3NH3PbI3 Single Crystal",
pages = "352",
volume = "13",
number = "2",
doi = "10.3390/catal13020352",
url = "https://hdl.handle.net/21.15107/rcub_dais_14229"
}
Vujančević, J., Andričević, P., Đokić, V., Blagojević, V. A., Pavlović, V. P., Ćirković, J., Horváth, E., Forró, L., Karoui, A., Pavlović, V. B.,& Janaćković, Đ.. (2023). Effect of the Deposition of Vanadium-Oxide on the Photocatalytic Activity of TiO2 Nanotubes and Its Photodiode Performance Interfaced with CH3NH3PbI3 Single Crystal. in Catalysts
MDPI., 13(2), 352.
https://doi.org/10.3390/catal13020352
https://hdl.handle.net/21.15107/rcub_dais_14229
Vujančević J, Andričević P, Đokić V, Blagojević VA, Pavlović VP, Ćirković J, Horváth E, Forró L, Karoui A, Pavlović VB, Janaćković Đ. Effect of the Deposition of Vanadium-Oxide on the Photocatalytic Activity of TiO2 Nanotubes and Its Photodiode Performance Interfaced with CH3NH3PbI3 Single Crystal. in Catalysts. 2023;13(2):352.
doi:10.3390/catal13020352
https://hdl.handle.net/21.15107/rcub_dais_14229 .
Vujančević, Jelena, Andričević, Pavao, Đokić, Veljko, Blagojević, Vladimir A., Pavlović, Vera P., Ćirković, Jovana, Horváth, Endre, Forró, László, Karoui, Abdennaceur, Pavlović, Vladimir B., Janaćković, Đorđe, "Effect of the Deposition of Vanadium-Oxide on the Photocatalytic Activity of TiO2 Nanotubes and Its Photodiode Performance Interfaced with CH3NH3PbI3 Single Crystal" in Catalysts, 13, no. 2 (2023):352,
https://doi.org/10.3390/catal13020352 .,
https://hdl.handle.net/21.15107/rcub_dais_14229 .

Oxide powder mixture with poly-vinyl alcohol (PVA) and added polyethylene glycol (PEG) as plasticizer

Labus, Nebojša; Krstić, Jugoslav; Matijašević, Srđan; Pavlović, Vladimir B.

(Belgrade : ETRAN, 2023)

TY  - JOUR
AU  - Labus, Nebojša
AU  - Krstić, Jugoslav
AU  - Matijašević, Srđan
AU  - Pavlović, Vladimir B.
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/14120
AB  - Powder mixture consisted of ZnO, Mn2O3 (MnCO3) and Fe2O3 blended powders, was found laminating during compaction. Polyvinyl alcohol (PVA) and a combination of PVA with polyethylene glycol (PEG) added as a plasticizer, were introduced as polymer binders to improve the compaction of oxide mixtures. It has been done by forming a suspension of oxide mixture and varying the polymer solution concentration and composition. By evaporating the solvent, new materials were obtained, which consist of oxide particles bound via polymer. In such a manner obtained hybrid materials were characterized with attenuated total reflection Fourier transformed infrared (ATR-FTIR) spectroscopy, differential thermal analysis (DTA) and transmission electron microscopy (TEM). The oxide polymer material was compacted at 200 MPa and the expansion of this compact during heating was monitored in temperature range up to 550 ºC with dilatometer. It was found that PVA forms graft polymer with PEG and specific interaction with oxide particles surface was revealed.
PB  - Belgrade : ETRAN
T2  - Science of Sintering
T1  - Oxide powder mixture with poly-vinyl alcohol (PVA) and added polyethylene glycol (PEG) as plasticizer
UR  - https://hdl.handle.net/21.15107/rcub_dais_14120
ER  - 
@article{
author = "Labus, Nebojša and Krstić, Jugoslav and Matijašević, Srđan and Pavlović, Vladimir B.",
year = "2023",
abstract = "Powder mixture consisted of ZnO, Mn2O3 (MnCO3) and Fe2O3 blended powders, was found laminating during compaction. Polyvinyl alcohol (PVA) and a combination of PVA with polyethylene glycol (PEG) added as a plasticizer, were introduced as polymer binders to improve the compaction of oxide mixtures. It has been done by forming a suspension of oxide mixture and varying the polymer solution concentration and composition. By evaporating the solvent, new materials were obtained, which consist of oxide particles bound via polymer. In such a manner obtained hybrid materials were characterized with attenuated total reflection Fourier transformed infrared (ATR-FTIR) spectroscopy, differential thermal analysis (DTA) and transmission electron microscopy (TEM). The oxide polymer material was compacted at 200 MPa and the expansion of this compact during heating was monitored in temperature range up to 550 ºC with dilatometer. It was found that PVA forms graft polymer with PEG and specific interaction with oxide particles surface was revealed.",
publisher = "Belgrade : ETRAN",
journal = "Science of Sintering",
title = "Oxide powder mixture with poly-vinyl alcohol (PVA) and added polyethylene glycol (PEG) as plasticizer",
url = "https://hdl.handle.net/21.15107/rcub_dais_14120"
}
Labus, N., Krstić, J., Matijašević, S.,& Pavlović, V. B.. (2023). Oxide powder mixture with poly-vinyl alcohol (PVA) and added polyethylene glycol (PEG) as plasticizer. in Science of Sintering
Belgrade : ETRAN..
https://hdl.handle.net/21.15107/rcub_dais_14120
Labus N, Krstić J, Matijašević S, Pavlović VB. Oxide powder mixture with poly-vinyl alcohol (PVA) and added polyethylene glycol (PEG) as plasticizer. in Science of Sintering. 2023;.
https://hdl.handle.net/21.15107/rcub_dais_14120 .
Labus, Nebojša, Krstić, Jugoslav, Matijašević, Srđan, Pavlović, Vladimir B., "Oxide powder mixture with poly-vinyl alcohol (PVA) and added polyethylene glycol (PEG) as plasticizer" in Science of Sintering (2023),
https://hdl.handle.net/21.15107/rcub_dais_14120 .

Nanomechanical properties of PVDF–ZnO polymer nanocomposite

Peleš Tadić, Adriana; Blagojević, Vladimir A.; Stojanović, Dušica; Ostojić, Sanja B.; Tasić, Nikola; Kosanović, Darko; Uskoković, Petar; Pavlović, Vladimir B.

(Elsevier BV, 2023)

TY  - JOUR
AU  - Peleš Tadić, Adriana
AU  - Blagojević, Vladimir A.
AU  - Stojanović, Dušica
AU  - Ostojić, Sanja B.
AU  - Tasić, Nikola
AU  - Kosanović, Darko
AU  - Uskoković, Petar
AU  - Pavlović, Vladimir B.
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/13560
AB  - Poly(vinylidenefluoride)–ZnO (PVDF–ZnO) nanocomposites with mechanically activated ZnO nanoparticle fillers were investigated using thermal and mechanical analysis and AFM and PFM. Differential scanning calorimetry (DSC) investigated the effect of ZnO nanoparticles on the crystallinity of the polymer, under controlled heating and cooling. Atomic force (AFM) microscopy was used to record the surfaces of the samples. Nanocomposite surface roughness shows the presence of the different phases inside of the matrix, where rough samples contain a higher proportion of the β phase. PFM was performed to investigate the piezoresponse of the composites. Nanoidentation showed that the mechanical activation of the filler (ZnO) increases the Young modulus with the activation time. Molecular simulations in periodic systems (PVDF–ZnO spherical nanocluster and nanocylinder composite) were used to investigate the influence of particle size and shape on the Young modulus of different phases of PVDF.
PB  - Elsevier BV
T2  - Materials Science and Engineering: B
T1  - Nanomechanical properties of PVDF–ZnO polymer nanocomposite
SP  - 116126
VL  - 287
DO  - 10.1016/j.mseb.2022.116126
UR  - https://hdl.handle.net/21.15107/rcub_dais_13436
ER  - 
@article{
author = "Peleš Tadić, Adriana and Blagojević, Vladimir A. and Stojanović, Dušica and Ostojić, Sanja B. and Tasić, Nikola and Kosanović, Darko and Uskoković, Petar and Pavlović, Vladimir B.",
year = "2023",
abstract = "Poly(vinylidenefluoride)–ZnO (PVDF–ZnO) nanocomposites with mechanically activated ZnO nanoparticle fillers were investigated using thermal and mechanical analysis and AFM and PFM. Differential scanning calorimetry (DSC) investigated the effect of ZnO nanoparticles on the crystallinity of the polymer, under controlled heating and cooling. Atomic force (AFM) microscopy was used to record the surfaces of the samples. Nanocomposite surface roughness shows the presence of the different phases inside of the matrix, where rough samples contain a higher proportion of the β phase. PFM was performed to investigate the piezoresponse of the composites. Nanoidentation showed that the mechanical activation of the filler (ZnO) increases the Young modulus with the activation time. Molecular simulations in periodic systems (PVDF–ZnO spherical nanocluster and nanocylinder composite) were used to investigate the influence of particle size and shape on the Young modulus of different phases of PVDF.",
publisher = "Elsevier BV",
journal = "Materials Science and Engineering: B",
title = "Nanomechanical properties of PVDF–ZnO polymer nanocomposite",
pages = "116126",
volume = "287",
doi = "10.1016/j.mseb.2022.116126",
url = "https://hdl.handle.net/21.15107/rcub_dais_13436"
}
Peleš Tadić, A., Blagojević, V. A., Stojanović, D., Ostojić, S. B., Tasić, N., Kosanović, D., Uskoković, P.,& Pavlović, V. B.. (2023). Nanomechanical properties of PVDF–ZnO polymer nanocomposite. in Materials Science and Engineering: B
Elsevier BV., 287, 116126.
https://doi.org/10.1016/j.mseb.2022.116126
https://hdl.handle.net/21.15107/rcub_dais_13436
Peleš Tadić A, Blagojević VA, Stojanović D, Ostojić SB, Tasić N, Kosanović D, Uskoković P, Pavlović VB. Nanomechanical properties of PVDF–ZnO polymer nanocomposite. in Materials Science and Engineering: B. 2023;287:116126.
doi:10.1016/j.mseb.2022.116126
https://hdl.handle.net/21.15107/rcub_dais_13436 .
Peleš Tadić, Adriana, Blagojević, Vladimir A., Stojanović, Dušica, Ostojić, Sanja B., Tasić, Nikola, Kosanović, Darko, Uskoković, Petar, Pavlović, Vladimir B., "Nanomechanical properties of PVDF–ZnO polymer nanocomposite" in Materials Science and Engineering: B, 287 (2023):116126,
https://doi.org/10.1016/j.mseb.2022.116126 .,
https://hdl.handle.net/21.15107/rcub_dais_13436 .
2
3

Nanomechanical properties of PVDF–ZnO polymer nanocomposite

Peleš Tadić, Adriana; Blagojević, Vladimir A.; Stojanović, Dušica; Ostojić, Sanja B.; Tasić, Nikola; Kosanović, Darko; Uskoković, Petar; Pavlović, Vladimir B.

(Elsevier BV, 2023)

TY  - JOUR
AU  - Peleš Tadić, Adriana
AU  - Blagojević, Vladimir A.
AU  - Stojanović, Dušica
AU  - Ostojić, Sanja B.
AU  - Tasić, Nikola
AU  - Kosanović, Darko
AU  - Uskoković, Petar
AU  - Pavlović, Vladimir B.
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/13436
AB  - Poly(vinylidenefluoride)–ZnO (PVDF–ZnO) nanocomposites with mechanically activated ZnO nanoparticle fillers were investigated using thermal and mechanical analysis and AFM and PFM. Differential scanning calorimetry (DSC) investigated the effect of ZnO nanoparticles on the crystallinity of the polymer, under controlled heating and cooling. Atomic force (AFM) microscopy was used to record the surfaces of the samples. Nanocomposite surface roughness shows the presence of the different phases inside of the matrix, where rough samples contain a higher proportion of the β phase. PFM was performed to investigate the piezoresponse of the composites. Nanoidentation showed that the mechanical activation of the filler (ZnO) increases the Young modulus with the activation time. Molecular simulations in periodic systems (PVDF–ZnO spherical nanocluster and nanocylinder composite) were used to investigate the influence of particle size and shape on the Young modulus of different phases of PVDF.
PB  - Elsevier BV
T2  - Materials Science and Engineering: B
T1  - Nanomechanical properties of PVDF–ZnO polymer nanocomposite
SP  - 116126
VL  - 287
DO  - 10.1016/j.mseb.2022.116126
UR  - https://hdl.handle.net/21.15107/rcub_dais_13436
ER  - 
@article{
author = "Peleš Tadić, Adriana and Blagojević, Vladimir A. and Stojanović, Dušica and Ostojić, Sanja B. and Tasić, Nikola and Kosanović, Darko and Uskoković, Petar and Pavlović, Vladimir B.",
year = "2023",
abstract = "Poly(vinylidenefluoride)–ZnO (PVDF–ZnO) nanocomposites with mechanically activated ZnO nanoparticle fillers were investigated using thermal and mechanical analysis and AFM and PFM. Differential scanning calorimetry (DSC) investigated the effect of ZnO nanoparticles on the crystallinity of the polymer, under controlled heating and cooling. Atomic force (AFM) microscopy was used to record the surfaces of the samples. Nanocomposite surface roughness shows the presence of the different phases inside of the matrix, where rough samples contain a higher proportion of the β phase. PFM was performed to investigate the piezoresponse of the composites. Nanoidentation showed that the mechanical activation of the filler (ZnO) increases the Young modulus with the activation time. Molecular simulations in periodic systems (PVDF–ZnO spherical nanocluster and nanocylinder composite) were used to investigate the influence of particle size and shape on the Young modulus of different phases of PVDF.",
publisher = "Elsevier BV",
journal = "Materials Science and Engineering: B",
title = "Nanomechanical properties of PVDF–ZnO polymer nanocomposite",
pages = "116126",
volume = "287",
doi = "10.1016/j.mseb.2022.116126",
url = "https://hdl.handle.net/21.15107/rcub_dais_13436"
}
Peleš Tadić, A., Blagojević, V. A., Stojanović, D., Ostojić, S. B., Tasić, N., Kosanović, D., Uskoković, P.,& Pavlović, V. B.. (2023). Nanomechanical properties of PVDF–ZnO polymer nanocomposite. in Materials Science and Engineering: B
Elsevier BV., 287, 116126.
https://doi.org/10.1016/j.mseb.2022.116126
https://hdl.handle.net/21.15107/rcub_dais_13436
Peleš Tadić A, Blagojević VA, Stojanović D, Ostojić SB, Tasić N, Kosanović D, Uskoković P, Pavlović VB. Nanomechanical properties of PVDF–ZnO polymer nanocomposite. in Materials Science and Engineering: B. 2023;287:116126.
doi:10.1016/j.mseb.2022.116126
https://hdl.handle.net/21.15107/rcub_dais_13436 .
Peleš Tadić, Adriana, Blagojević, Vladimir A., Stojanović, Dušica, Ostojić, Sanja B., Tasić, Nikola, Kosanović, Darko, Uskoković, Petar, Pavlović, Vladimir B., "Nanomechanical properties of PVDF–ZnO polymer nanocomposite" in Materials Science and Engineering: B, 287 (2023):116126,
https://doi.org/10.1016/j.mseb.2022.116126 .,
https://hdl.handle.net/21.15107/rcub_dais_13436 .
2
3

Fractal analysis and microstructure development of BaTiO3 and PVDF based multifunctional materials

Peleš Tadić, Adriana; Vuković, George; Kojović, Aleksandar; Stojanović, Dušica; Vlahović, Branislav; Milosavljević, Nataša; Obradović, Nina; Pavlović, Vladimir B.

(Belgrade : University of Belgrade - Faculty of Mechanical Engineering, 2023)

TY  - CONF
AU  - Peleš Tadić, Adriana
AU  - Vuković, George
AU  - Kojović, Aleksandar
AU  - Stojanović, Dušica
AU  - Vlahović, Branislav
AU  - Milosavljević, Nataša
AU  - Obradović, Nina
AU  - Pavlović, Vladimir B.
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/14969
AB  - Barium titanate (BaTiO3) and polyvinylidene fluoride (PVDF) based multifunctional materials are attracting a great scientific interest due to their excellent piezoelectric, pyroelectric and ferroelectric properties. These materials undergo controlled transformations through physical interactions and respond to environmental stimuli, such as temperature, pressure, electric and magnetic fields. Their properties strongly depend on synthesis procedures and obtained microstructures. This include intergranular contact surfaces of BaTiO3 based materials, as well as, porous structure and cross-linking patterns of PVDF prepared by electrospinning. It has been found that these microstructures can have fractal structure and that the fractal analysis can be used as a powerful tool for describing structural and functional properties of these materials. Having this in mind, in this research we have used different fractal methods for the reconstructions of various BaTiO3 and PVDF microstructure morphologies. Fractal analysis has been performed by using scanning electron microscope micrographs and computational modeling tools. Fractal dimension of irregular morphologies which exhibit fractal regularity were determined by using box-counting method. This method enables the analysis of self-similar microstructure morphologies by quantifying the rate at which an object's geometrical details develop at increasingly fine scales. Theory of Iterated Function Systems and Voronoi tessellation, have been used for modeling BaTiO3 random microstructures and PVDF porous structures. A python algorithm was created to determine the distribution of pore areas in SEM micrographs. Algorithm’s distribution of calculated pore surface areas was compared with measured pore surface areas and fractal reconstructions of different morphologies and their connection with functional properties were analyzed.
PB  - Belgrade : University of Belgrade - Faculty of Mechanical Engineering
C3  - Programme and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2023, 04 – 07 July 2023, Zlatibor, Serbia
T1  - Fractal analysis and microstructure development of BaTiO3 and PVDF based multifunctional materials
SP  - 46
UR  - https://hdl.handle.net/21.15107/rcub_dais_14969
ER  - 
@conference{
author = "Peleš Tadić, Adriana and Vuković, George and Kojović, Aleksandar and Stojanović, Dušica and Vlahović, Branislav and Milosavljević, Nataša and Obradović, Nina and Pavlović, Vladimir B.",
year = "2023",
abstract = "Barium titanate (BaTiO3) and polyvinylidene fluoride (PVDF) based multifunctional materials are attracting a great scientific interest due to their excellent piezoelectric, pyroelectric and ferroelectric properties. These materials undergo controlled transformations through physical interactions and respond to environmental stimuli, such as temperature, pressure, electric and magnetic fields. Their properties strongly depend on synthesis procedures and obtained microstructures. This include intergranular contact surfaces of BaTiO3 based materials, as well as, porous structure and cross-linking patterns of PVDF prepared by electrospinning. It has been found that these microstructures can have fractal structure and that the fractal analysis can be used as a powerful tool for describing structural and functional properties of these materials. Having this in mind, in this research we have used different fractal methods for the reconstructions of various BaTiO3 and PVDF microstructure morphologies. Fractal analysis has been performed by using scanning electron microscope micrographs and computational modeling tools. Fractal dimension of irregular morphologies which exhibit fractal regularity were determined by using box-counting method. This method enables the analysis of self-similar microstructure morphologies by quantifying the rate at which an object's geometrical details develop at increasingly fine scales. Theory of Iterated Function Systems and Voronoi tessellation, have been used for modeling BaTiO3 random microstructures and PVDF porous structures. A python algorithm was created to determine the distribution of pore areas in SEM micrographs. Algorithm’s distribution of calculated pore surface areas was compared with measured pore surface areas and fractal reconstructions of different morphologies and their connection with functional properties were analyzed.",
publisher = "Belgrade : University of Belgrade - Faculty of Mechanical Engineering",
journal = "Programme and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2023, 04 – 07 July 2023, Zlatibor, Serbia",
title = "Fractal analysis and microstructure development of BaTiO3 and PVDF based multifunctional materials",
pages = "46",
url = "https://hdl.handle.net/21.15107/rcub_dais_14969"
}
Peleš Tadić, A., Vuković, G., Kojović, A., Stojanović, D., Vlahović, B., Milosavljević, N., Obradović, N.,& Pavlović, V. B.. (2023). Fractal analysis and microstructure development of BaTiO3 and PVDF based multifunctional materials. in Programme and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2023, 04 – 07 July 2023, Zlatibor, Serbia
Belgrade : University of Belgrade - Faculty of Mechanical Engineering., 46.
https://hdl.handle.net/21.15107/rcub_dais_14969
Peleš Tadić A, Vuković G, Kojović A, Stojanović D, Vlahović B, Milosavljević N, Obradović N, Pavlović VB. Fractal analysis and microstructure development of BaTiO3 and PVDF based multifunctional materials. in Programme and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2023, 04 – 07 July 2023, Zlatibor, Serbia. 2023;:46.
https://hdl.handle.net/21.15107/rcub_dais_14969 .
Peleš Tadić, Adriana, Vuković, George, Kojović, Aleksandar, Stojanović, Dušica, Vlahović, Branislav, Milosavljević, Nataša, Obradović, Nina, Pavlović, Vladimir B., "Fractal analysis and microstructure development of BaTiO3 and PVDF based multifunctional materials" in Programme and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2023, 04 – 07 July 2023, Zlatibor, Serbia (2023):46,
https://hdl.handle.net/21.15107/rcub_dais_14969 .

Electronic properties of BZT nano-ceramic grades at low frequency region

Kosanović, Darko; Blagojević, Vladimir; Aleksić, Stanko; Živojinović, Jelena; Peleš Tadić, Adriana; Pavlović, Vladimir B.; Obradović, Nina

(Belgrade : ETRAN, 2023)

TY  - JOUR
AU  - Kosanović, Darko
AU  - Blagojević, Vladimir
AU  - Aleksić, Stanko
AU  - Živojinović, Jelena
AU  - Peleš Tadić, Adriana
AU  - Pavlović, Vladimir B.
AU  - Obradović, Nina
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/14971
AB  - BZT ceramics was prepared by using fine powder mixture of BaCO3, TiO2 and ZrO2 in the respective molar ratio to form Ba(Zr0.10Ti0.90)O3 via solid state reaction at elevated temperature. The prepared BZT was milled in the planetary ball mill from 0-120 min to achieve different powder grades from micron to nano-sized particles. After the powder characterization by XRD and SEM the samples were pressed in disc shape and sintered at different temperatures from 1100-1350°C in the air. The sintered samples were characterized by SEM and their density and average grain size was determined and presented vs. sintering temperature and powder grades (milling time). After that the silver epoxy electrodes were deposited on sintered disc samples. The disc samples capacity and resistivity were measured at low frequency region from 1 Hz to 200 kHz using low frequency impedance analyzer. The sintering temperatures and powder grades were used as parameters. Finally the specific resistance ρ, dielectric constant (ε' + jε") and tgδ where determined from the impedance measurements. The behavior of electronic properties where analyzed e.g. the relaxation effect of the space charge (inter-granular electric charges) vs. sintering temperature and ceramic grades. The results obtained were compared with best literature data for the losses in BZT ceramics at low frequencies.
PB  - Belgrade : ETRAN
T2  - Science of Sintering
T1  - Electronic properties of BZT nano-ceramic grades at low frequency region
SP  - 413
EP  - 423
VL  - 55
IS  - 3
DO  - 10.2298/SOS230717043K
UR  - https://hdl.handle.net/21.15107/rcub_dais_14971
ER  - 
@article{
author = "Kosanović, Darko and Blagojević, Vladimir and Aleksić, Stanko and Živojinović, Jelena and Peleš Tadić, Adriana and Pavlović, Vladimir B. and Obradović, Nina",
year = "2023",
abstract = "BZT ceramics was prepared by using fine powder mixture of BaCO3, TiO2 and ZrO2 in the respective molar ratio to form Ba(Zr0.10Ti0.90)O3 via solid state reaction at elevated temperature. The prepared BZT was milled in the planetary ball mill from 0-120 min to achieve different powder grades from micron to nano-sized particles. After the powder characterization by XRD and SEM the samples were pressed in disc shape and sintered at different temperatures from 1100-1350°C in the air. The sintered samples were characterized by SEM and their density and average grain size was determined and presented vs. sintering temperature and powder grades (milling time). After that the silver epoxy electrodes were deposited on sintered disc samples. The disc samples capacity and resistivity were measured at low frequency region from 1 Hz to 200 kHz using low frequency impedance analyzer. The sintering temperatures and powder grades were used as parameters. Finally the specific resistance ρ, dielectric constant (ε' + jε") and tgδ where determined from the impedance measurements. The behavior of electronic properties where analyzed e.g. the relaxation effect of the space charge (inter-granular electric charges) vs. sintering temperature and ceramic grades. The results obtained were compared with best literature data for the losses in BZT ceramics at low frequencies.",
publisher = "Belgrade : ETRAN",
journal = "Science of Sintering",
title = "Electronic properties of BZT nano-ceramic grades at low frequency region",
pages = "413-423",
volume = "55",
number = "3",
doi = "10.2298/SOS230717043K",
url = "https://hdl.handle.net/21.15107/rcub_dais_14971"
}
Kosanović, D., Blagojević, V., Aleksić, S., Živojinović, J., Peleš Tadić, A., Pavlović, V. B.,& Obradović, N.. (2023). Electronic properties of BZT nano-ceramic grades at low frequency region. in Science of Sintering
Belgrade : ETRAN., 55(3), 413-423.
https://doi.org/10.2298/SOS230717043K
https://hdl.handle.net/21.15107/rcub_dais_14971
Kosanović D, Blagojević V, Aleksić S, Živojinović J, Peleš Tadić A, Pavlović VB, Obradović N. Electronic properties of BZT nano-ceramic grades at low frequency region. in Science of Sintering. 2023;55(3):413-423.
doi:10.2298/SOS230717043K
https://hdl.handle.net/21.15107/rcub_dais_14971 .
Kosanović, Darko, Blagojević, Vladimir, Aleksić, Stanko, Živojinović, Jelena, Peleš Tadić, Adriana, Pavlović, Vladimir B., Obradović, Nina, "Electronic properties of BZT nano-ceramic grades at low frequency region" in Science of Sintering, 55, no. 3 (2023):413-423,
https://doi.org/10.2298/SOS230717043K .,
https://hdl.handle.net/21.15107/rcub_dais_14971 .

Oxide Powder Mixture with Poly-vinyl Alcohol (PVA) and added Polyethylene Glycol (PEG) as Plasticizer

Labus, Nebojsa; Krstić, Jugoslav; Matijašević, Srđan; Pavlović, Vladimir

(Belgrade : Association for ETRAN Society, 2023)

TY  - JOUR
AU  - Labus, Nebojsa
AU  - Krstić, Jugoslav
AU  - Matijašević, Srđan
AU  - Pavlović, Vladimir
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/15141
AB  - Powder mixture consisted of ZnO, Mn2O3 (MnCO3) and Fe2O3 blended powders, was found laminating during compaction. Polyvinyl alcohol (PVA) and a combination of PVA with polyethylene glycol (PEG) added as a plasticizer, were introduced as polymer binders to improve the compaction of oxide mixtures. It has been done by forming a suspension of oxide mixture and varying the polymer solution concentration and composition. By evaporating the solvent, new materials were obtained, which consist of oxide particles bound via polymer. In such a manner obtained hybrid materials were characterized with attenuated total reflection Fourier transformed infrared (ATR-FTIR) spectroscopy, differential thermal analysis (DTA) and transmission electron microscopy (TEM). The oxide polymer material was compacted at 200 MPa and the expansion of this compact during heating was monitored in temperature range up to 550ºC with dilatometer. It was found that PVA forms graft polymer with PEG and specific interaction with oxide particles surface was revealed.
AB  - Смеша прахова састављена од ZnO, Mn2O3 (MnCO3) и Fe2O3 комбинацијепрахова је показивала ламинацију током пресовања. Поливинил алкохол (PVA) икомбинација PVA са полиетилен гликолом (PEG) који је додат као пластификатор, сууведени као полимерно везиво за пресовање оксидних прахова. Везиво је уведено такошто је формирана суспензија смеше различитих оксида прахова у полимерномраствору. Концентрације полимера и састави су варирани. Уклањањем растварачадобијени су нови материјали који се састоје од честица оксида повезаних полимерима.Ови хибридни материјали окарактерисани су методама ометене тоталне рефлексијефурије трансформисане инфрацрвене спектроскопије (ATR-FTIR) као идиференцијалне термичке анализе (DTA). Микроструктура је посматранатрансмисоном електронском микроскопијом (TEM). Оксид-полимер материјали супресовани на притиску од 200 MPa и ширење испреска током грејања је праћено у температурском опсегу од собне до 550ºC употребом дилатометра. Нађено је да PVAформира графт полимер са PEG и да постоји специфична интеракција полимера саповршином честица оксида.
PB  - Belgrade : Association for ETRAN Society
T2  - Science of Sintering
T1  - Oxide Powder Mixture with Poly-vinyl Alcohol (PVA) and added Polyethylene Glycol (PEG) as Plasticizer
SP  - 189
EP  - 2023
VL  - 55
DO  - 10.2298/SOS220828005L
UR  - https://hdl.handle.net/21.15107/rcub_dais_15141
ER  - 
@article{
author = "Labus, Nebojsa and Krstić, Jugoslav and Matijašević, Srđan and Pavlović, Vladimir",
year = "2023",
abstract = "Powder mixture consisted of ZnO, Mn2O3 (MnCO3) and Fe2O3 blended powders, was found laminating during compaction. Polyvinyl alcohol (PVA) and a combination of PVA with polyethylene glycol (PEG) added as a plasticizer, were introduced as polymer binders to improve the compaction of oxide mixtures. It has been done by forming a suspension of oxide mixture and varying the polymer solution concentration and composition. By evaporating the solvent, new materials were obtained, which consist of oxide particles bound via polymer. In such a manner obtained hybrid materials were characterized with attenuated total reflection Fourier transformed infrared (ATR-FTIR) spectroscopy, differential thermal analysis (DTA) and transmission electron microscopy (TEM). The oxide polymer material was compacted at 200 MPa and the expansion of this compact during heating was monitored in temperature range up to 550ºC with dilatometer. It was found that PVA forms graft polymer with PEG and specific interaction with oxide particles surface was revealed., Смеша прахова састављена од ZnO, Mn2O3 (MnCO3) и Fe2O3 комбинацијепрахова је показивала ламинацију током пресовања. Поливинил алкохол (PVA) икомбинација PVA са полиетилен гликолом (PEG) који је додат као пластификатор, сууведени као полимерно везиво за пресовање оксидних прахова. Везиво је уведено такошто је формирана суспензија смеше различитих оксида прахова у полимерномраствору. Концентрације полимера и састави су варирани. Уклањањем растварачадобијени су нови материјали који се састоје од честица оксида повезаних полимерима.Ови хибридни материјали окарактерисани су методама ометене тоталне рефлексијефурије трансформисане инфрацрвене спектроскопије (ATR-FTIR) као идиференцијалне термичке анализе (DTA). Микроструктура је посматранатрансмисоном електронском микроскопијом (TEM). Оксид-полимер материјали супресовани на притиску од 200 MPa и ширење испреска током грејања је праћено у температурском опсегу од собне до 550ºC употребом дилатометра. Нађено је да PVAформира графт полимер са PEG и да постоји специфична интеракција полимера саповршином честица оксида.",
publisher = "Belgrade : Association for ETRAN Society",
journal = "Science of Sintering",
title = "Oxide Powder Mixture with Poly-vinyl Alcohol (PVA) and added Polyethylene Glycol (PEG) as Plasticizer",
pages = "189-2023",
volume = "55",
doi = "10.2298/SOS220828005L",
url = "https://hdl.handle.net/21.15107/rcub_dais_15141"
}
Labus, N., Krstić, J., Matijašević, S.,& Pavlović, V.. (2023). Oxide Powder Mixture with Poly-vinyl Alcohol (PVA) and added Polyethylene Glycol (PEG) as Plasticizer. in Science of Sintering
Belgrade : Association for ETRAN Society., 55, 189-2023.
https://doi.org/10.2298/SOS220828005L
https://hdl.handle.net/21.15107/rcub_dais_15141
Labus N, Krstić J, Matijašević S, Pavlović V. Oxide Powder Mixture with Poly-vinyl Alcohol (PVA) and added Polyethylene Glycol (PEG) as Plasticizer. in Science of Sintering. 2023;55:189-2023.
doi:10.2298/SOS220828005L
https://hdl.handle.net/21.15107/rcub_dais_15141 .
Labus, Nebojsa, Krstić, Jugoslav, Matijašević, Srđan, Pavlović, Vladimir, "Oxide Powder Mixture with Poly-vinyl Alcohol (PVA) and added Polyethylene Glycol (PEG) as Plasticizer" in Science of Sintering, 55 (2023):189-2023,
https://doi.org/10.2298/SOS220828005L .,
https://hdl.handle.net/21.15107/rcub_dais_15141 .

Removal of the As(V) and Cr(VI) from the Water Using Magnetite/3D-Printed Wollastonite Hybrid Adsorbent

Popović, Mina; Veličković, Zlate S.; Bogdanov, Jovica; Marinković, Aleksandar D.; Luna, Mariano Casas; Trajković, Isaak; Obradović, Nina; Pavlović, Vladimir B.

(International Institute for the Science of Sintering (IISS), 2022)

TY  - JOUR
AU  - Popović, Mina
AU  - Veličković, Zlate S.
AU  - Bogdanov, Jovica
AU  - Marinković, Aleksandar D.
AU  - Luna, Mariano Casas
AU  - Trajković, Isaak
AU  - Obradović, Nina
AU  - Pavlović, Vladimir B.
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/12955
AB  - In this study, the structure, morphology and composition of the synthesized magnetite/3D-printed wollastonite (3D_W/M) composite were characterized, and its adsorption performance with respect to As(V) and Cr(VI) were studied. Magnetite (MG) modified 3D printed wollastonite was obtained by two step procedure: modification of 3D_W with 3-aminoproylsilane (APTES) followed by controlled magnetite (MG) deposition to obtain 3D_W/M adsorbent. The structure/properties of 3D_W/M were confirmed by applying FTIR, XRD, TGD/DTA, and SEM analysis. The adsorption properties of hybrid adsorbents were carried out for As(V) and Cr(VI) removal-one relative to the initial pH value, the adsorbent mass, the temperature, and the adsorption time. Time-dependent adsorption study was best described by pseudo-second order equation, while Weber Morris analysis showed that intraparticle diffusion controled diffusional transport. Similar activation energy, 17.44 and 14.49 kJ•mol-1 for adsorption As(V) and Cr(VI) on 3D_W/M, respectively, indicated main contribution of physical adsorption. Determination of adsorption parameters was performed by applying different adsorption isotherm models, and the best fit was obtained using Freundlich model. The adsorption capacity of 24.16 and 29.6 mg g-1 for As(V) and Cr(VI) at 2o C, Co = 5.5 and 5.3 mg L-1, respectively, were obtained. Thermodynamic study indicated favourable process at a higher temperature. Preliminary fixed-bed column study and results fitting with Bohart-Adams, Yoon-Nelson, Thomas, and Modified dose-response model showed good agreement with results from the batch study.
PB  - International Institute for the Science of Sintering (IISS)
T2  - Science of Sintering
T1  - Removal of the As(V) and Cr(VI) from the Water Using Magnetite/3D-Printed Wollastonite Hybrid Adsorbent
SP  - 105
EP  - 124
VL  - 54
IS  - 1
DO  - 10.2298/SOS2201105P
UR  - https://hdl.handle.net/21.15107/rcub_dais_12955
ER  - 
@article{
author = "Popović, Mina and Veličković, Zlate S. and Bogdanov, Jovica and Marinković, Aleksandar D. and Luna, Mariano Casas and Trajković, Isaak and Obradović, Nina and Pavlović, Vladimir B.",
year = "2022",
abstract = "In this study, the structure, morphology and composition of the synthesized magnetite/3D-printed wollastonite (3D_W/M) composite were characterized, and its adsorption performance with respect to As(V) and Cr(VI) were studied. Magnetite (MG) modified 3D printed wollastonite was obtained by two step procedure: modification of 3D_W with 3-aminoproylsilane (APTES) followed by controlled magnetite (MG) deposition to obtain 3D_W/M adsorbent. The structure/properties of 3D_W/M were confirmed by applying FTIR, XRD, TGD/DTA, and SEM analysis. The adsorption properties of hybrid adsorbents were carried out for As(V) and Cr(VI) removal-one relative to the initial pH value, the adsorbent mass, the temperature, and the adsorption time. Time-dependent adsorption study was best described by pseudo-second order equation, while Weber Morris analysis showed that intraparticle diffusion controled diffusional transport. Similar activation energy, 17.44 and 14.49 kJ•mol-1 for adsorption As(V) and Cr(VI) on 3D_W/M, respectively, indicated main contribution of physical adsorption. Determination of adsorption parameters was performed by applying different adsorption isotherm models, and the best fit was obtained using Freundlich model. The adsorption capacity of 24.16 and 29.6 mg g-1 for As(V) and Cr(VI) at 2o C, Co = 5.5 and 5.3 mg L-1, respectively, were obtained. Thermodynamic study indicated favourable process at a higher temperature. Preliminary fixed-bed column study and results fitting with Bohart-Adams, Yoon-Nelson, Thomas, and Modified dose-response model showed good agreement with results from the batch study.",
publisher = "International Institute for the Science of Sintering (IISS)",
journal = "Science of Sintering",
title = "Removal of the As(V) and Cr(VI) from the Water Using Magnetite/3D-Printed Wollastonite Hybrid Adsorbent",
pages = "105-124",
volume = "54",
number = "1",
doi = "10.2298/SOS2201105P",
url = "https://hdl.handle.net/21.15107/rcub_dais_12955"
}
Popović, M., Veličković, Z. S., Bogdanov, J., Marinković, A. D., Luna, M. C., Trajković, I., Obradović, N.,& Pavlović, V. B.. (2022). Removal of the As(V) and Cr(VI) from the Water Using Magnetite/3D-Printed Wollastonite Hybrid Adsorbent. in Science of Sintering
International Institute for the Science of Sintering (IISS)., 54(1), 105-124.
https://doi.org/10.2298/SOS2201105P
https://hdl.handle.net/21.15107/rcub_dais_12955
Popović M, Veličković ZS, Bogdanov J, Marinković AD, Luna MC, Trajković I, Obradović N, Pavlović VB. Removal of the As(V) and Cr(VI) from the Water Using Magnetite/3D-Printed Wollastonite Hybrid Adsorbent. in Science of Sintering. 2022;54(1):105-124.
doi:10.2298/SOS2201105P
https://hdl.handle.net/21.15107/rcub_dais_12955 .
Popović, Mina, Veličković, Zlate S., Bogdanov, Jovica, Marinković, Aleksandar D., Luna, Mariano Casas, Trajković, Isaak, Obradović, Nina, Pavlović, Vladimir B., "Removal of the As(V) and Cr(VI) from the Water Using Magnetite/3D-Printed Wollastonite Hybrid Adsorbent" in Science of Sintering, 54, no. 1 (2022):105-124,
https://doi.org/10.2298/SOS2201105P .,
https://hdl.handle.net/21.15107/rcub_dais_12955 .
2
2

Structural Characterization of Nanocellulose/Fe3O4 Hybrid Nanomaterials

Janićijević, Aleksandra; Pavlović, Vera P.; Kovačević, Danijela; Perić, Marko; Vlahović, Branislav; Pavlović, Vladimir B.; Filipović, Suzana

(2022)

TY  - JOUR
AU  - Janićijević, Aleksandra
AU  - Pavlović, Vera P.
AU  - Kovačević, Danijela
AU  - Perić, Marko
AU  - Vlahović, Branislav
AU  - Pavlović, Vladimir B.
AU  - Filipović, Suzana
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13152
AB  - The rise of innovation in the electrical industry is driven by the controlled design of new materials. The hybrid materials based on magnetite/nanocellulose are highly interesting due to their various applications in medicine, ecology, catalysis and electronics. In this study, the structure and morphology of nanocellulose/magnetite hybrid nanomaterials were investigated. The effect of nanocellulose loading on the crystal structure of synthesized composites was investigated by XRD and FTIR methods. The presented study reveals that the interaction between the cellulose and magnetic nanoparticles depends on the nanocellulose content. Further, a transition from cellulose II to cellulose I allomorph is observed. SEM and EDS are employed to determine the variation in morphology with changes in component concentrations. By the calculation of magnetic interactions between adjacent Fe3+ and Fe2+ ions within composites, it is determined that ferromagnetic coupling predominates.
T2  - Polymers
T1  - Structural Characterization of Nanocellulose/Fe3O4 Hybrid Nanomaterials
SP  - 1819
VL  - 14
IS  - 9
DO  - 10.3390/polym14091819
UR  - https://hdl.handle.net/21.15107/rcub_dais_13152
ER  - 
@article{
author = "Janićijević, Aleksandra and Pavlović, Vera P. and Kovačević, Danijela and Perić, Marko and Vlahović, Branislav and Pavlović, Vladimir B. and Filipović, Suzana",
year = "2022",
abstract = "The rise of innovation in the electrical industry is driven by the controlled design of new materials. The hybrid materials based on magnetite/nanocellulose are highly interesting due to their various applications in medicine, ecology, catalysis and electronics. In this study, the structure and morphology of nanocellulose/magnetite hybrid nanomaterials were investigated. The effect of nanocellulose loading on the crystal structure of synthesized composites was investigated by XRD and FTIR methods. The presented study reveals that the interaction between the cellulose and magnetic nanoparticles depends on the nanocellulose content. Further, a transition from cellulose II to cellulose I allomorph is observed. SEM and EDS are employed to determine the variation in morphology with changes in component concentrations. By the calculation of magnetic interactions between adjacent Fe3+ and Fe2+ ions within composites, it is determined that ferromagnetic coupling predominates.",
journal = "Polymers",
title = "Structural Characterization of Nanocellulose/Fe3O4 Hybrid Nanomaterials",
pages = "1819",
volume = "14",
number = "9",
doi = "10.3390/polym14091819",
url = "https://hdl.handle.net/21.15107/rcub_dais_13152"
}
Janićijević, A., Pavlović, V. P., Kovačević, D., Perić, M., Vlahović, B., Pavlović, V. B.,& Filipović, S.. (2022). Structural Characterization of Nanocellulose/Fe3O4 Hybrid Nanomaterials. in Polymers, 14(9), 1819.
https://doi.org/10.3390/polym14091819
https://hdl.handle.net/21.15107/rcub_dais_13152
Janićijević A, Pavlović VP, Kovačević D, Perić M, Vlahović B, Pavlović VB, Filipović S. Structural Characterization of Nanocellulose/Fe3O4 Hybrid Nanomaterials. in Polymers. 2022;14(9):1819.
doi:10.3390/polym14091819
https://hdl.handle.net/21.15107/rcub_dais_13152 .
Janićijević, Aleksandra, Pavlović, Vera P., Kovačević, Danijela, Perić, Marko, Vlahović, Branislav, Pavlović, Vladimir B., Filipović, Suzana, "Structural Characterization of Nanocellulose/Fe3O4 Hybrid Nanomaterials" in Polymers, 14, no. 9 (2022):1819,
https://doi.org/10.3390/polym14091819 .,
https://hdl.handle.net/21.15107/rcub_dais_13152 .
4
2

Hydroxyapatite/TiO2 Nanomaterial with Defined Microstructural and Good Antimicrobial Properties

Mirković, Miljana; Filipović, Suzana; Kalijadis, Ana; Mašković, Pavle; Mašković, Jelena; Vlahović, Branislav; Pavlović, Vladimir B.

(2022)

TY  - JOUR
AU  - Mirković, Miljana
AU  - Filipović, Suzana
AU  - Kalijadis, Ana
AU  - Mašković, Pavle
AU  - Mašković, Jelena
AU  - Vlahović, Branislav
AU  - Pavlović, Vladimir B.
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13153
AB  - Due to the growing number of people infected with the new coronavirus globally, which weakens immunity, there has been an increase in bacterial infections. Hence, knowledge about simple and low-cost synthesis methods of materials with good structural and antimicrobial properties is of great importance. A material obtained through the combination of a nanoscale hydroxyapatite material (with good biocompatibility) and titanium dioxide (with good degradation properties of organic molecules) can absorb and decompose bacteria. In this investigation, three different synthesis routes used to prepare hydroxyapatite/titanium dioxide nanomaterials are examined. The morphology and semiquantitative chemical composition are characterized by scanning electron microscopy with energy dispersive X-ray analysis (SEM-EDX). The obtained materials’ phase and structural characterization are determined using the X-ray powder diffraction method (XRD). The crystallite sizes of the obtained materials are in the range of 8 nm to 15 nm. Based on XRD peak positions, the hexagonal hydroxyapatite phases are formed in all samples along with TiO2 anatase and rutile phases. According to SEM and TEM analyses, the morphology of the prepared samples differs depending on the synthesis route. The EDX analysis confirmed the presence of Ti, Ca, P, and O in the obtained materials. The IR spectroscopy verified the vibration bands characteristic for HAp and titanium. The investigated materials show excellent antimicrobial and photocatalytic properties.
T2  - Antibiotics
T1  - Hydroxyapatite/TiO2 Nanomaterial with Defined Microstructural and Good Antimicrobial Properties
SP  - 592
VL  - 11
IS  - 5
DO  - 10.3390/antibiotics11050592
UR  - https://hdl.handle.net/21.15107/rcub_dais_13153
ER  - 
@article{
author = "Mirković, Miljana and Filipović, Suzana and Kalijadis, Ana and Mašković, Pavle and Mašković, Jelena and Vlahović, Branislav and Pavlović, Vladimir B.",
year = "2022",
abstract = "Due to the growing number of people infected with the new coronavirus globally, which weakens immunity, there has been an increase in bacterial infections. Hence, knowledge about simple and low-cost synthesis methods of materials with good structural and antimicrobial properties is of great importance. A material obtained through the combination of a nanoscale hydroxyapatite material (with good biocompatibility) and titanium dioxide (with good degradation properties of organic molecules) can absorb and decompose bacteria. In this investigation, three different synthesis routes used to prepare hydroxyapatite/titanium dioxide nanomaterials are examined. The morphology and semiquantitative chemical composition are characterized by scanning electron microscopy with energy dispersive X-ray analysis (SEM-EDX). The obtained materials’ phase and structural characterization are determined using the X-ray powder diffraction method (XRD). The crystallite sizes of the obtained materials are in the range of 8 nm to 15 nm. Based on XRD peak positions, the hexagonal hydroxyapatite phases are formed in all samples along with TiO2 anatase and rutile phases. According to SEM and TEM analyses, the morphology of the prepared samples differs depending on the synthesis route. The EDX analysis confirmed the presence of Ti, Ca, P, and O in the obtained materials. The IR spectroscopy verified the vibration bands characteristic for HAp and titanium. The investigated materials show excellent antimicrobial and photocatalytic properties.",
journal = "Antibiotics",
title = "Hydroxyapatite/TiO2 Nanomaterial with Defined Microstructural and Good Antimicrobial Properties",
pages = "592",
volume = "11",
number = "5",
doi = "10.3390/antibiotics11050592",
url = "https://hdl.handle.net/21.15107/rcub_dais_13153"
}
Mirković, M., Filipović, S., Kalijadis, A., Mašković, P., Mašković, J., Vlahović, B.,& Pavlović, V. B.. (2022). Hydroxyapatite/TiO2 Nanomaterial with Defined Microstructural and Good Antimicrobial Properties. in Antibiotics, 11(5), 592.
https://doi.org/10.3390/antibiotics11050592
https://hdl.handle.net/21.15107/rcub_dais_13153
Mirković M, Filipović S, Kalijadis A, Mašković P, Mašković J, Vlahović B, Pavlović VB. Hydroxyapatite/TiO2 Nanomaterial with Defined Microstructural and Good Antimicrobial Properties. in Antibiotics. 2022;11(5):592.
doi:10.3390/antibiotics11050592
https://hdl.handle.net/21.15107/rcub_dais_13153 .
Mirković, Miljana, Filipović, Suzana, Kalijadis, Ana, Mašković, Pavle, Mašković, Jelena, Vlahović, Branislav, Pavlović, Vladimir B., "Hydroxyapatite/TiO2 Nanomaterial with Defined Microstructural and Good Antimicrobial Properties" in Antibiotics, 11, no. 5 (2022):592,
https://doi.org/10.3390/antibiotics11050592 .,
https://hdl.handle.net/21.15107/rcub_dais_13153 .
6
7

TiO2 nanotubes film/FTO glass interface: Thermal treatment effects

Vujančević, Jelena; Bjelajac, Anđelika; Veltruska, Katerina; Matolin, Vladimir; Siketić, Zdravko; Provatas, Georgios; Jakšić, Milko; Stan, George; Socol, Gabriel; Mihailescu, Ion; Pavlović, Vladimir B.; Janaćkovic, Đorđe

(ETRAN, 2022)

TY  - JOUR
AU  - Vujančević, Jelena
AU  - Bjelajac, Anđelika
AU  - Veltruska, Katerina
AU  - Matolin, Vladimir
AU  - Siketić, Zdravko
AU  - Provatas, Georgios
AU  - Jakšić, Milko
AU  - Stan, George
AU  - Socol, Gabriel
AU  - Mihailescu, Ion
AU  - Pavlović, Vladimir B.
AU  - Janaćkovic, Đorđe
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13160
AB  - Pure Ti films deposited by radio-frequency magnetron sputtering on FTO glass were anodized to fabricate TiO2 nanotubes (NTs) arrays. The TiO2 NTs/FTO samples were sintered at 450, 550 and 630°C, in ambient air. The thermal treatment did not influence the crystal phase composition, preserving in all cases the anatase single phase. As expected, the crystalline anatase quality improved with the annealing temperature. Nevertheless, slight differences in nanotubular morphology, such as the appearance of grains inside the walls, were observed in the case of the sample sintered at 630°C. Chemical analysis by X-ray Photoelectron Spectroscopy of annealed samples revealed the presence of Sn inside TiO2 NTs, due to diffusion of Sn from the substrate to TiO2. For the substrate was used FTO glass whose top layer consists of SnO2 doped with F. Rutherford Backscattering Spectrometry and Time-of-Flight Elastic Recoil Detection Analysis were carried out to study the elemental depth profile of the films. It was found that the temperature of sintering controls the Sn diffusion inside TiO2 film. Sn atoms diffuse towards the TiO2 NTs surface for the samples annealed at 450 and 550°C. The diffusion is however hindered in the case of the heat treatment at 630°C. Besides, the Ti diffusion into the SnO2 underlayer was observed, together with the formation of TiO2/SnO2 interfaces. One then expected but not a great difference in absorption between samples, since all contained anatase phase, as confirmed by Diffuse Reflectance Spectroscopy. A higher amount of Sn was however detected for the sample annealed at 550°C, which accounts for a slight red absorption shift. The importance of controlling the annealing parameters of the anodized TiO2/FTO structures was highlighted through the formation of TiO2-SnO2 interfaces and the Sn insertion from FTO, which can play an essential role in increasing the photoperformances of TiO2 NTs/FTO based structures of photovoltaic cells.
PB  - ETRAN
T2  - Science of Sintering
T1  - TiO2 nanotubes film/FTO glass interface: Thermal treatment effects
SP  - 235
EP  - 248
VL  - 54
IS  - 2
DO  - 10.2298/SOS2202235V
UR  - https://hdl.handle.net/21.15107/rcub_dais_13160
ER  - 
@article{
author = "Vujančević, Jelena and Bjelajac, Anđelika and Veltruska, Katerina and Matolin, Vladimir and Siketić, Zdravko and Provatas, Georgios and Jakšić, Milko and Stan, George and Socol, Gabriel and Mihailescu, Ion and Pavlović, Vladimir B. and Janaćkovic, Đorđe",
year = "2022",
abstract = "Pure Ti films deposited by radio-frequency magnetron sputtering on FTO glass were anodized to fabricate TiO2 nanotubes (NTs) arrays. The TiO2 NTs/FTO samples were sintered at 450, 550 and 630°C, in ambient air. The thermal treatment did not influence the crystal phase composition, preserving in all cases the anatase single phase. As expected, the crystalline anatase quality improved with the annealing temperature. Nevertheless, slight differences in nanotubular morphology, such as the appearance of grains inside the walls, were observed in the case of the sample sintered at 630°C. Chemical analysis by X-ray Photoelectron Spectroscopy of annealed samples revealed the presence of Sn inside TiO2 NTs, due to diffusion of Sn from the substrate to TiO2. For the substrate was used FTO glass whose top layer consists of SnO2 doped with F. Rutherford Backscattering Spectrometry and Time-of-Flight Elastic Recoil Detection Analysis were carried out to study the elemental depth profile of the films. It was found that the temperature of sintering controls the Sn diffusion inside TiO2 film. Sn atoms diffuse towards the TiO2 NTs surface for the samples annealed at 450 and 550°C. The diffusion is however hindered in the case of the heat treatment at 630°C. Besides, the Ti diffusion into the SnO2 underlayer was observed, together with the formation of TiO2/SnO2 interfaces. One then expected but not a great difference in absorption between samples, since all contained anatase phase, as confirmed by Diffuse Reflectance Spectroscopy. A higher amount of Sn was however detected for the sample annealed at 550°C, which accounts for a slight red absorption shift. The importance of controlling the annealing parameters of the anodized TiO2/FTO structures was highlighted through the formation of TiO2-SnO2 interfaces and the Sn insertion from FTO, which can play an essential role in increasing the photoperformances of TiO2 NTs/FTO based structures of photovoltaic cells.",
publisher = "ETRAN",
journal = "Science of Sintering",
title = "TiO2 nanotubes film/FTO glass interface: Thermal treatment effects",
pages = "235-248",
volume = "54",
number = "2",
doi = "10.2298/SOS2202235V",
url = "https://hdl.handle.net/21.15107/rcub_dais_13160"
}
Vujančević, J., Bjelajac, A., Veltruska, K., Matolin, V., Siketić, Z., Provatas, G., Jakšić, M., Stan, G., Socol, G., Mihailescu, I., Pavlović, V. B.,& Janaćkovic, Đ.. (2022). TiO2 nanotubes film/FTO glass interface: Thermal treatment effects. in Science of Sintering
ETRAN., 54(2), 235-248.
https://doi.org/10.2298/SOS2202235V
https://hdl.handle.net/21.15107/rcub_dais_13160
Vujančević J, Bjelajac A, Veltruska K, Matolin V, Siketić Z, Provatas G, Jakšić M, Stan G, Socol G, Mihailescu I, Pavlović VB, Janaćkovic Đ. TiO2 nanotubes film/FTO glass interface: Thermal treatment effects. in Science of Sintering. 2022;54(2):235-248.
doi:10.2298/SOS2202235V
https://hdl.handle.net/21.15107/rcub_dais_13160 .
Vujančević, Jelena, Bjelajac, Anđelika, Veltruska, Katerina, Matolin, Vladimir, Siketić, Zdravko, Provatas, Georgios, Jakšić, Milko, Stan, George, Socol, Gabriel, Mihailescu, Ion, Pavlović, Vladimir B., Janaćkovic, Đorđe, "TiO2 nanotubes film/FTO glass interface: Thermal treatment effects" in Science of Sintering, 54, no. 2 (2022):235-248,
https://doi.org/10.2298/SOS2202235V .,
https://hdl.handle.net/21.15107/rcub_dais_13160 .

Dielectric Properties of Mechanically Activated Strontium Titanate Ceramics

Živojinović, Jelena; Kosanović, Darko; Blagojević, Vladimir A.; Pavlović, Vera P.; Tadić, Nenad; Vlahović, Branislav; Pavlović, Vladimir B.

(2022)

TY  - JOUR
AU  - Živojinović, Jelena
AU  - Kosanović, Darko
AU  - Blagojević, Vladimir A.
AU  - Pavlović, Vera P.
AU  - Tadić, Nenad
AU  - Vlahović, Branislav
AU  - Pavlović, Vladimir B.
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13510
AB  - In this study, microstructure evolution and dielectric properties of SrTiO3 ceramic have been investigated, whereby mechanical activation of SrTiO3 powders was used to modify the functional properties of ceramic materials. Microstructural SEM analysis of SrTiO3 ceramics showed that the increase in mechanical activation time results in less porous samples. Raman spectroscopy indicated changes in the broadening and asymmetry of the TO2 mode with a change in the time of mechanical activation. TO2 mode showed a Fano asymmetry due to its interaction with polarization fluctuations in polar micro-regions, which are a consequence of the presence of oxygen vacancies caused by activation. The maximum value of dielectric permittivity was observed in the sample activated for 10 min. Also, the sample activated for 10 min exhibits relatively low values of loss tangent, compared to the other mechanically activated samples, providing the best overall dielectric performance compared to other samples.
T2  - Science of Sintering
T1  - Dielectric Properties of Mechanically Activated Strontium Titanate Ceramics
SP  - 401
EP  - 414
VL  - 54
IS  - 4
DO  - 10.2298/SOS2204401Z
UR  - https://hdl.handle.net/21.15107/rcub_dais_13510
ER  - 
@article{
author = "Živojinović, Jelena and Kosanović, Darko and Blagojević, Vladimir A. and Pavlović, Vera P. and Tadić, Nenad and Vlahović, Branislav and Pavlović, Vladimir B.",
year = "2022",
abstract = "In this study, microstructure evolution and dielectric properties of SrTiO3 ceramic have been investigated, whereby mechanical activation of SrTiO3 powders was used to modify the functional properties of ceramic materials. Microstructural SEM analysis of SrTiO3 ceramics showed that the increase in mechanical activation time results in less porous samples. Raman spectroscopy indicated changes in the broadening and asymmetry of the TO2 mode with a change in the time of mechanical activation. TO2 mode showed a Fano asymmetry due to its interaction with polarization fluctuations in polar micro-regions, which are a consequence of the presence of oxygen vacancies caused by activation. The maximum value of dielectric permittivity was observed in the sample activated for 10 min. Also, the sample activated for 10 min exhibits relatively low values of loss tangent, compared to the other mechanically activated samples, providing the best overall dielectric performance compared to other samples.",
journal = "Science of Sintering",
title = "Dielectric Properties of Mechanically Activated Strontium Titanate Ceramics",
pages = "401-414",
volume = "54",
number = "4",
doi = "10.2298/SOS2204401Z",
url = "https://hdl.handle.net/21.15107/rcub_dais_13510"
}
Živojinović, J., Kosanović, D., Blagojević, V. A., Pavlović, V. P., Tadić, N., Vlahović, B.,& Pavlović, V. B.. (2022). Dielectric Properties of Mechanically Activated Strontium Titanate Ceramics. in Science of Sintering, 54(4), 401-414.
https://doi.org/10.2298/SOS2204401Z
https://hdl.handle.net/21.15107/rcub_dais_13510
Živojinović J, Kosanović D, Blagojević VA, Pavlović VP, Tadić N, Vlahović B, Pavlović VB. Dielectric Properties of Mechanically Activated Strontium Titanate Ceramics. in Science of Sintering. 2022;54(4):401-414.
doi:10.2298/SOS2204401Z
https://hdl.handle.net/21.15107/rcub_dais_13510 .
Živojinović, Jelena, Kosanović, Darko, Blagojević, Vladimir A., Pavlović, Vera P., Tadić, Nenad, Vlahović, Branislav, Pavlović, Vladimir B., "Dielectric Properties of Mechanically Activated Strontium Titanate Ceramics" in Science of Sintering, 54, no. 4 (2022):401-414,
https://doi.org/10.2298/SOS2204401Z .,
https://hdl.handle.net/21.15107/rcub_dais_13510 .
2

Attempts to obtain BaTiO3/Fe2O3 core-shell type structures: The role of iron oxide nanoparticle formation and agglomeration

Kilanski, Lukasz; Lewinska, Sabina; Slawska-Waniewska, Anna; Pavlović, Vladimir B.; Filipović, Suzana

(2022)

TY  - JOUR
AU  - Kilanski, Lukasz
AU  - Lewinska, Sabina
AU  - Slawska-Waniewska, Anna
AU  - Pavlović, Vladimir B.
AU  - Filipović, Suzana
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13561
AB  - The manuscript shows the studies of structural and magnetic properties of BaTiO3/Fe2O3 samples prepared using five different chemical routes. We show that the undertaken processes leaded to the decoration of BaTiO3 grains with hematite nanoparticles, but not to a creation of a well-defined core-shell structure. These studies revealed that a strong tendency of the iron-oxide nanoparticles to form agglomerates, significantly reduces the possibility of a continuous shell formation around the core, and at the same time it promotes inter-particle interactions between magnetic nanoparticles. A detailed analysis of the results obtained in the structural and magnetic studies, allowed to state that magnetic properties of these composites are dominated by the properties of fine iron-oxide nanopowder. The collected isothermal magnetization curves clearly indicate the canted antiferromagnetic properties characteristic for hematite, while the ac magnetization results exhibit the collective freezing process to the cluster glass like state (characteristic for interacting system of magnetic nanoparticles). This work provides detailed studies of systems prepared under different conditions and methods, which can serve as an important step towards obtaining well defined BaTiO3/Fe2O3 core-shell structures. © 2022 Elsevier B.V.
T2  - Inorganic Chemistry Communications
T1  - Attempts to obtain BaTiO3/Fe2O3 core-shell type structures: The role of iron oxide nanoparticle formation and agglomeration
SP  - 109960
VL  - 145
DO  - 10.1016/j.inoche.2022.109960
UR  - https://hdl.handle.net/21.15107/rcub_dais_13561
ER  - 
@article{
author = "Kilanski, Lukasz and Lewinska, Sabina and Slawska-Waniewska, Anna and Pavlović, Vladimir B. and Filipović, Suzana",
year = "2022",
abstract = "The manuscript shows the studies of structural and magnetic properties of BaTiO3/Fe2O3 samples prepared using five different chemical routes. We show that the undertaken processes leaded to the decoration of BaTiO3 grains with hematite nanoparticles, but not to a creation of a well-defined core-shell structure. These studies revealed that a strong tendency of the iron-oxide nanoparticles to form agglomerates, significantly reduces the possibility of a continuous shell formation around the core, and at the same time it promotes inter-particle interactions between magnetic nanoparticles. A detailed analysis of the results obtained in the structural and magnetic studies, allowed to state that magnetic properties of these composites are dominated by the properties of fine iron-oxide nanopowder. The collected isothermal magnetization curves clearly indicate the canted antiferromagnetic properties characteristic for hematite, while the ac magnetization results exhibit the collective freezing process to the cluster glass like state (characteristic for interacting system of magnetic nanoparticles). This work provides detailed studies of systems prepared under different conditions and methods, which can serve as an important step towards obtaining well defined BaTiO3/Fe2O3 core-shell structures. © 2022 Elsevier B.V.",
journal = "Inorganic Chemistry Communications",
title = "Attempts to obtain BaTiO3/Fe2O3 core-shell type structures: The role of iron oxide nanoparticle formation and agglomeration",
pages = "109960",
volume = "145",
doi = "10.1016/j.inoche.2022.109960",
url = "https://hdl.handle.net/21.15107/rcub_dais_13561"
}
Kilanski, L., Lewinska, S., Slawska-Waniewska, A., Pavlović, V. B.,& Filipović, S.. (2022). Attempts to obtain BaTiO3/Fe2O3 core-shell type structures: The role of iron oxide nanoparticle formation and agglomeration. in Inorganic Chemistry Communications, 145, 109960.
https://doi.org/10.1016/j.inoche.2022.109960
https://hdl.handle.net/21.15107/rcub_dais_13561
Kilanski L, Lewinska S, Slawska-Waniewska A, Pavlović VB, Filipović S. Attempts to obtain BaTiO3/Fe2O3 core-shell type structures: The role of iron oxide nanoparticle formation and agglomeration. in Inorganic Chemistry Communications. 2022;145:109960.
doi:10.1016/j.inoche.2022.109960
https://hdl.handle.net/21.15107/rcub_dais_13561 .
Kilanski, Lukasz, Lewinska, Sabina, Slawska-Waniewska, Anna, Pavlović, Vladimir B., Filipović, Suzana, "Attempts to obtain BaTiO3/Fe2O3 core-shell type structures: The role of iron oxide nanoparticle formation and agglomeration" in Inorganic Chemistry Communications, 145 (2022):109960,
https://doi.org/10.1016/j.inoche.2022.109960 .,
https://hdl.handle.net/21.15107/rcub_dais_13561 .
1
1

Study of influence of Mn dopant on dielectric response of SrTiO3 ceramics

Živojinović, Jelena; Kosanović, Darko; Pavlović, Vera P.; Tadić, Nenad; Pavlović, Vladimir B.

(Belgrade : Materials Research Society of Serbia, 2022)

TY  - CONF
AU  - Živojinović, Jelena
AU  - Kosanović, Darko
AU  - Pavlović, Vera P.
AU  - Tadić, Nenad
AU  - Pavlović, Vladimir B.
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13596
AB  - The influence of Mn incorporation into the Sr and Ti sites of SrTiO3 ceramics on the structure, microstructure and dielectric tunability was studied. Manganese doped SrTiO3 ceramics with various manganese dioxide weight percentages (1.5, 3 and 6 wt %) were prepared by a solid-state method in the presence of mechanical activation (10, 30 and 120 minutes). According to Ritveld's analysis it was found that the size of the crystallite in doped activated SrTiO3 ceramics is smaller than the size of the crystallite in undoped ceramics. This lower degree of crystallinity is a consequence of additional distortion of the crystal structure due to ion substitution. SEM analysis showed that with increasing dopant concentration in the sample, at the same time as a time of mechanical activation, the grain size decreases, which is explained by the increasingly dominant incorporation of Mn4+ ions at sites of Ti4+ ions. On the Raman spectra of doped ceramic samples, the appearance of a peak at 750 cm-1 was observed, its change in intensity with the increase of dopant concentration indicates the incorporation of dopant in the SrTiO3 lattice. It was stated that mechanical activation leads to a more pronounced increase in the intensity of the mentioned peak, i.e. that activation leads to effectively higher incorporation of dopant into the strontium-titanate lattice. Higher values of relative dielectric permittivity of doped SrTiO3 ceramics were observed for 1.5 wt %, in relation to inactivated and activated undoped ceramics. Based on all previous analysis, it is estimated that this can be related not only to higher sample densities but also to the contribution of Mn2+ ion incorporation at Sr2+ ion positions in the lattice. Based on all the above, the optimal electrical properties of SrTiO3 ceramics can be achieved by the appropriate choice of mechanical activation time and dopant concentration.
PB  - Belgrade : Materials Research Society of Serbia
C3  - Program and The Book of abstracts / Twenty-third Annual Conference YUCOMAT 2022 & Twelfth World Round Table Conference on Sintering XII WRTCS 2022, Herceg Novi, Montenegro, August 29 - September 2, 2022
T1  - Study of influence of Mn dopant on dielectric response of SrTiO3 ceramics
SP  - 131
EP  - 131
UR  - https://hdl.handle.net/21.15107/rcub_dais_13596
ER  - 
@conference{
author = "Živojinović, Jelena and Kosanović, Darko and Pavlović, Vera P. and Tadić, Nenad and Pavlović, Vladimir B.",
year = "2022",
abstract = "The influence of Mn incorporation into the Sr and Ti sites of SrTiO3 ceramics on the structure, microstructure and dielectric tunability was studied. Manganese doped SrTiO3 ceramics with various manganese dioxide weight percentages (1.5, 3 and 6 wt %) were prepared by a solid-state method in the presence of mechanical activation (10, 30 and 120 minutes). According to Ritveld's analysis it was found that the size of the crystallite in doped activated SrTiO3 ceramics is smaller than the size of the crystallite in undoped ceramics. This lower degree of crystallinity is a consequence of additional distortion of the crystal structure due to ion substitution. SEM analysis showed that with increasing dopant concentration in the sample, at the same time as a time of mechanical activation, the grain size decreases, which is explained by the increasingly dominant incorporation of Mn4+ ions at sites of Ti4+ ions. On the Raman spectra of doped ceramic samples, the appearance of a peak at 750 cm-1 was observed, its change in intensity with the increase of dopant concentration indicates the incorporation of dopant in the SrTiO3 lattice. It was stated that mechanical activation leads to a more pronounced increase in the intensity of the mentioned peak, i.e. that activation leads to effectively higher incorporation of dopant into the strontium-titanate lattice. Higher values of relative dielectric permittivity of doped SrTiO3 ceramics were observed for 1.5 wt %, in relation to inactivated and activated undoped ceramics. Based on all previous analysis, it is estimated that this can be related not only to higher sample densities but also to the contribution of Mn2+ ion incorporation at Sr2+ ion positions in the lattice. Based on all the above, the optimal electrical properties of SrTiO3 ceramics can be achieved by the appropriate choice of mechanical activation time and dopant concentration.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "Program and The Book of abstracts / Twenty-third Annual Conference YUCOMAT 2022 & Twelfth World Round Table Conference on Sintering XII WRTCS 2022, Herceg Novi, Montenegro, August 29 - September 2, 2022",
title = "Study of influence of Mn dopant on dielectric response of SrTiO3 ceramics",
pages = "131-131",
url = "https://hdl.handle.net/21.15107/rcub_dais_13596"
}
Živojinović, J., Kosanović, D., Pavlović, V. P., Tadić, N.,& Pavlović, V. B.. (2022). Study of influence of Mn dopant on dielectric response of SrTiO3 ceramics. in Program and The Book of abstracts / Twenty-third Annual Conference YUCOMAT 2022 & Twelfth World Round Table Conference on Sintering XII WRTCS 2022, Herceg Novi, Montenegro, August 29 - September 2, 2022
Belgrade : Materials Research Society of Serbia., 131-131.
https://hdl.handle.net/21.15107/rcub_dais_13596
Živojinović J, Kosanović D, Pavlović VP, Tadić N, Pavlović VB. Study of influence of Mn dopant on dielectric response of SrTiO3 ceramics. in Program and The Book of abstracts / Twenty-third Annual Conference YUCOMAT 2022 & Twelfth World Round Table Conference on Sintering XII WRTCS 2022, Herceg Novi, Montenegro, August 29 - September 2, 2022. 2022;:131-131.
https://hdl.handle.net/21.15107/rcub_dais_13596 .
Živojinović, Jelena, Kosanović, Darko, Pavlović, Vera P., Tadić, Nenad, Pavlović, Vladimir B., "Study of influence of Mn dopant on dielectric response of SrTiO3 ceramics" in Program and The Book of abstracts / Twenty-third Annual Conference YUCOMAT 2022 & Twelfth World Round Table Conference on Sintering XII WRTCS 2022, Herceg Novi, Montenegro, August 29 - September 2, 2022 (2022):131-131,
https://hdl.handle.net/21.15107/rcub_dais_13596 .

Photocatalytic activity of N-TiO2 nanotubes decorated with CdS QD

Vujančević, Jelena; Bjelajac, Anđelika; Horváth, Endre; Forró, Laszlo; Pavlović, Vladimir B.; Janaćković, Đorđe

(Belgrade : Materials Research Society of Serbia, 2022)

TY  - CONF
AU  - Vujančević, Jelena
AU  - Bjelajac, Anđelika
AU  - Horváth, Endre
AU  - Forró, Laszlo
AU  - Pavlović, Vladimir B.
AU  - Janaćković, Đorđe
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13597
AB  - The negative consequences of the modern world are environmental pollution. To decrease it, a lot of research is focused on finding solution for its remediation. Photoactive materials have ability to utilize solar energy for the degradation of organic and inorganic pollutants. Among different photoactive material TiO2 has advantages due to its non-toxicity, chemical stability and corrosion resistance. The aim of this study was to investigate the synergetic effect of nitrogen incorporation into crystal structure of TiO2 and deposition of CdS onto amelioration of the photocatalytic degradation of methylen orange compared to the pristine TiO2. For that purpose TiO2 nanotubes were obtained by anodization of titanium foil in HF containing electrolyte. To achieve crystal structure and at the same time to introduce nitrogen in TiO2, the samples were annealed in ammonia atmosphere at 450 °C, for different time of annealing. The highest amount of nitrogen was achieved for the shortest time of annealing (30 min). Beside that, it was observed that the highest level of interstitial nitrogen was also achieved for the shortest time of annealing. Further, CdS quantum dots (QDs) were deposited on the nitrogen doped TiO2 nanotubes via an ex-situ method (using binding reagent). According to the FESEM micrographs, a partial agglomeration of CdS QDs on some domaines on top of the nanotubes was observed. By performing the DRS, the improvement of the optical response after nitrogen doping and deposition of CdS was demonstrated. The sample with the highest amount of total nitrogen and interstitial nitrogen in combination with deposition CdS QDs exhibited the highest photocatalytic efficiency.
PB  - Belgrade : Materials Research Society of Serbia
C3  - Program and The Book of abstracts / Twenty-third Annual Conference YUCOMAT 2022 & Twelfth World Round Table Conference on Sintering XII WRTCS 2022, Herceg Novi, Montenegro, August 29 - September 2, 2022
T1  - Photocatalytic activity of N-TiO2 nanotubes decorated with CdS QD
SP  - 140
EP  - 140
UR  - https://hdl.handle.net/21.15107/rcub_dais_13597
ER  - 
@conference{
author = "Vujančević, Jelena and Bjelajac, Anđelika and Horváth, Endre and Forró, Laszlo and Pavlović, Vladimir B. and Janaćković, Đorđe",
year = "2022",
abstract = "The negative consequences of the modern world are environmental pollution. To decrease it, a lot of research is focused on finding solution for its remediation. Photoactive materials have ability to utilize solar energy for the degradation of organic and inorganic pollutants. Among different photoactive material TiO2 has advantages due to its non-toxicity, chemical stability and corrosion resistance. The aim of this study was to investigate the synergetic effect of nitrogen incorporation into crystal structure of TiO2 and deposition of CdS onto amelioration of the photocatalytic degradation of methylen orange compared to the pristine TiO2. For that purpose TiO2 nanotubes were obtained by anodization of titanium foil in HF containing electrolyte. To achieve crystal structure and at the same time to introduce nitrogen in TiO2, the samples were annealed in ammonia atmosphere at 450 °C, for different time of annealing. The highest amount of nitrogen was achieved for the shortest time of annealing (30 min). Beside that, it was observed that the highest level of interstitial nitrogen was also achieved for the shortest time of annealing. Further, CdS quantum dots (QDs) were deposited on the nitrogen doped TiO2 nanotubes via an ex-situ method (using binding reagent). According to the FESEM micrographs, a partial agglomeration of CdS QDs on some domaines on top of the nanotubes was observed. By performing the DRS, the improvement of the optical response after nitrogen doping and deposition of CdS was demonstrated. The sample with the highest amount of total nitrogen and interstitial nitrogen in combination with deposition CdS QDs exhibited the highest photocatalytic efficiency.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "Program and The Book of abstracts / Twenty-third Annual Conference YUCOMAT 2022 & Twelfth World Round Table Conference on Sintering XII WRTCS 2022, Herceg Novi, Montenegro, August 29 - September 2, 2022",
title = "Photocatalytic activity of N-TiO2 nanotubes decorated with CdS QD",
pages = "140-140",
url = "https://hdl.handle.net/21.15107/rcub_dais_13597"
}
Vujančević, J., Bjelajac, A., Horváth, E., Forró, L., Pavlović, V. B.,& Janaćković, Đ.. (2022). Photocatalytic activity of N-TiO2 nanotubes decorated with CdS QD. in Program and The Book of abstracts / Twenty-third Annual Conference YUCOMAT 2022 & Twelfth World Round Table Conference on Sintering XII WRTCS 2022, Herceg Novi, Montenegro, August 29 - September 2, 2022
Belgrade : Materials Research Society of Serbia., 140-140.
https://hdl.handle.net/21.15107/rcub_dais_13597
Vujančević J, Bjelajac A, Horváth E, Forró L, Pavlović VB, Janaćković Đ. Photocatalytic activity of N-TiO2 nanotubes decorated with CdS QD. in Program and The Book of abstracts / Twenty-third Annual Conference YUCOMAT 2022 & Twelfth World Round Table Conference on Sintering XII WRTCS 2022, Herceg Novi, Montenegro, August 29 - September 2, 2022. 2022;:140-140.
https://hdl.handle.net/21.15107/rcub_dais_13597 .
Vujančević, Jelena, Bjelajac, Anđelika, Horváth, Endre, Forró, Laszlo, Pavlović, Vladimir B., Janaćković, Đorđe, "Photocatalytic activity of N-TiO2 nanotubes decorated with CdS QD" in Program and The Book of abstracts / Twenty-third Annual Conference YUCOMAT 2022 & Twelfth World Round Table Conference on Sintering XII WRTCS 2022, Herceg Novi, Montenegro, August 29 - September 2, 2022 (2022):140-140,
https://hdl.handle.net/21.15107/rcub_dais_13597 .

Influence of MN doping on the evolution of microstructure and optical properties of mechanically activated SrTiO3 powders

Živojinović, Jelena; Kosanović, Darko; Blagojević, Vladimir A.; Pavlović, Vera P.; Ćirković, Jovana; Pavlović, Vladimir B.

(Belgrade : Innovation Center of Faculty of Mechanical Engineering, 2022)

TY  - CONF
AU  - Živojinović, Jelena
AU  - Kosanović, Darko
AU  - Blagojević, Vladimir A.
AU  - Pavlović, Vera P.
AU  - Ćirković, Jovana
AU  - Pavlović, Vladimir B.
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13600
AB  - Manganese doped SrTiO3 powders with various manganese dioxide weight percentages in the range of 1.5, 3 and 6 wp% were prepared by a solid-state method in the presence of mechanical activation (10, 30 and 120 minutes). A systematic investigation by X-ray diffraction (XRD), scanning electron microscopy (SEM), particle size analisys (PSA), Brunauer-Emmett-Teller (BET) methods and Raman spectroscopy has been undertaken to evaluate the role of dopants on the microstructural and morphological study of the perovskite oxide obtained. The optical properties of the different manganese doped and activated SrTiO3 powders have been also evaluated. Mn insertion in SrTiO3 is discussed considering the possibility for Mn ions to occupy both Ti4+ and Sr2+ sites as well as manganese segregation and Mn incorporation-related non-homogeneities. The results demonstrated that Mn has substituted into the lattice and surface layers of the particles of SrTiO3 powders and the absorption onset shifted to higher values of wavelengths with increasing time of activation and dopant concentration. The lowest value of the band gap (Eg=3.10 eV) was registered with the longest activation for 120 minutes and the highest concentration of dopant (6 wp%). Combining doping with mechanical activation lower values of band gap can be achieved and that fact could be used in subsequent studies to make Mn-SrTiO3 more suitable visible-light photocatalysts.
PB  - Belgrade : Innovation Center of Faculty of Mechanical Engineering
C3  - Programme [Elektronski izvor] ; and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2022, 05-08 July 2022, Zlatibor, Serbia
T1  - Influence of MN doping on the evolution of microstructure and optical properties of mechanically activated SrTiO3 powders
SP  - 82
EP  - 82
UR  - https://hdl.handle.net/21.15107/rcub_dais_13600
ER  - 
@conference{
author = "Živojinović, Jelena and Kosanović, Darko and Blagojević, Vladimir A. and Pavlović, Vera P. and Ćirković, Jovana and Pavlović, Vladimir B.",
year = "2022",
abstract = "Manganese doped SrTiO3 powders with various manganese dioxide weight percentages in the range of 1.5, 3 and 6 wp% were prepared by a solid-state method in the presence of mechanical activation (10, 30 and 120 minutes). A systematic investigation by X-ray diffraction (XRD), scanning electron microscopy (SEM), particle size analisys (PSA), Brunauer-Emmett-Teller (BET) methods and Raman spectroscopy has been undertaken to evaluate the role of dopants on the microstructural and morphological study of the perovskite oxide obtained. The optical properties of the different manganese doped and activated SrTiO3 powders have been also evaluated. Mn insertion in SrTiO3 is discussed considering the possibility for Mn ions to occupy both Ti4+ and Sr2+ sites as well as manganese segregation and Mn incorporation-related non-homogeneities. The results demonstrated that Mn has substituted into the lattice and surface layers of the particles of SrTiO3 powders and the absorption onset shifted to higher values of wavelengths with increasing time of activation and dopant concentration. The lowest value of the band gap (Eg=3.10 eV) was registered with the longest activation for 120 minutes and the highest concentration of dopant (6 wp%). Combining doping with mechanical activation lower values of band gap can be achieved and that fact could be used in subsequent studies to make Mn-SrTiO3 more suitable visible-light photocatalysts.",
publisher = "Belgrade : Innovation Center of Faculty of Mechanical Engineering",
journal = "Programme [Elektronski izvor] ; and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2022, 05-08 July 2022, Zlatibor, Serbia",
title = "Influence of MN doping on the evolution of microstructure and optical properties of mechanically activated SrTiO3 powders",
pages = "82-82",
url = "https://hdl.handle.net/21.15107/rcub_dais_13600"
}
Živojinović, J., Kosanović, D., Blagojević, V. A., Pavlović, V. P., Ćirković, J.,& Pavlović, V. B.. (2022). Influence of MN doping on the evolution of microstructure and optical properties of mechanically activated SrTiO3 powders. in Programme [Elektronski izvor] ; and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2022, 05-08 July 2022, Zlatibor, Serbia
Belgrade : Innovation Center of Faculty of Mechanical Engineering., 82-82.
https://hdl.handle.net/21.15107/rcub_dais_13600
Živojinović J, Kosanović D, Blagojević VA, Pavlović VP, Ćirković J, Pavlović VB. Influence of MN doping on the evolution of microstructure and optical properties of mechanically activated SrTiO3 powders. in Programme [Elektronski izvor] ; and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2022, 05-08 July 2022, Zlatibor, Serbia. 2022;:82-82.
https://hdl.handle.net/21.15107/rcub_dais_13600 .
Živojinović, Jelena, Kosanović, Darko, Blagojević, Vladimir A., Pavlović, Vera P., Ćirković, Jovana, Pavlović, Vladimir B., "Influence of MN doping on the evolution of microstructure and optical properties of mechanically activated SrTiO3 powders" in Programme [Elektronski izvor] ; and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2022, 05-08 July 2022, Zlatibor, Serbia (2022):82-82,
https://hdl.handle.net/21.15107/rcub_dais_13600 .

Influence of mechanically activated ZnO powder content as a filler of polymer nanocomposites

Peleš Tadić, Adriana; Obradović, Nina; Kosanović, Darko; Blagojević, Vladimir A.; Pavlović, Vladimir B.

(Belgrade : Innovation Center of Faculty of Mechanical Engineering, 2022)

TY  - CONF
AU  - Peleš Tadić, Adriana
AU  - Obradović, Nina
AU  - Kosanović, Darko
AU  - Blagojević, Vladimir A.
AU  - Pavlović, Vladimir B.
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13601
AB  - The research is based on the synthesis and characterization of polymer nanocomposites based on Poly(vinylidene fluoride) (PVDF) polymer and mechanically activated zinc oxide powder. In order to produce the polymer nanocomposite with enchanced electrical and mechanical properties different amount of the mechanicaly activated zinc oxide powder was used as a filler in PVDF polymer. PVDF (Mw∼530 000) was used without further purification. Mechanical activation of the powder was performed in a planetary mechanochemical activator (mill) with tungsten carbide balls. Activation times were 10 and 30 minutes. Ball to sample mass ratio was 40:1, while the rotation speed was 390 rpm. After the mentioned procedure, PVDF and nanocomposite films (50 μm) were obtained by casting the solutions into Petri dishes. The percentage of ZnO powder inside the polymer matrix was 5% for powder mechanically activated for 30 minutes, while for powders activated for 10 minutes the percentages were 2.5%, 5% and 10%. From the obtained results it can be concluded that the bigger amount of powder as a filler inside polymer matrix can be substituted with the prolonged time of mechanical activation time and have enhanced electrical properties also saving material and making the production of nanocomposites more economical.
PB  - Belgrade : Innovation Center of Faculty of Mechanical Engineering
C3  - Programme [Elektronski izvor] ; and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2022, 05-08 July 2022, Zlatibor
T1  - Influence of mechanically activated ZnO powder content as a filler of polymer nanocomposites
SP  - 86
EP  - 86
UR  - https://hdl.handle.net/21.15107/rcub_dais_13601
ER  - 
@conference{
author = "Peleš Tadić, Adriana and Obradović, Nina and Kosanović, Darko and Blagojević, Vladimir A. and Pavlović, Vladimir B.",
year = "2022",
abstract = "The research is based on the synthesis and characterization of polymer nanocomposites based on Poly(vinylidene fluoride) (PVDF) polymer and mechanically activated zinc oxide powder. In order to produce the polymer nanocomposite with enchanced electrical and mechanical properties different amount of the mechanicaly activated zinc oxide powder was used as a filler in PVDF polymer. PVDF (Mw∼530 000) was used without further purification. Mechanical activation of the powder was performed in a planetary mechanochemical activator (mill) with tungsten carbide balls. Activation times were 10 and 30 minutes. Ball to sample mass ratio was 40:1, while the rotation speed was 390 rpm. After the mentioned procedure, PVDF and nanocomposite films (50 μm) were obtained by casting the solutions into Petri dishes. The percentage of ZnO powder inside the polymer matrix was 5% for powder mechanically activated for 30 minutes, while for powders activated for 10 minutes the percentages were 2.5%, 5% and 10%. From the obtained results it can be concluded that the bigger amount of powder as a filler inside polymer matrix can be substituted with the prolonged time of mechanical activation time and have enhanced electrical properties also saving material and making the production of nanocomposites more economical.",
publisher = "Belgrade : Innovation Center of Faculty of Mechanical Engineering",
journal = "Programme [Elektronski izvor] ; and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2022, 05-08 July 2022, Zlatibor",
title = "Influence of mechanically activated ZnO powder content as a filler of polymer nanocomposites",
pages = "86-86",
url = "https://hdl.handle.net/21.15107/rcub_dais_13601"
}
Peleš Tadić, A., Obradović, N., Kosanović, D., Blagojević, V. A.,& Pavlović, V. B.. (2022). Influence of mechanically activated ZnO powder content as a filler of polymer nanocomposites. in Programme [Elektronski izvor] ; and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2022, 05-08 July 2022, Zlatibor
Belgrade : Innovation Center of Faculty of Mechanical Engineering., 86-86.
https://hdl.handle.net/21.15107/rcub_dais_13601
Peleš Tadić A, Obradović N, Kosanović D, Blagojević VA, Pavlović VB. Influence of mechanically activated ZnO powder content as a filler of polymer nanocomposites. in Programme [Elektronski izvor] ; and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2022, 05-08 July 2022, Zlatibor. 2022;:86-86.
https://hdl.handle.net/21.15107/rcub_dais_13601 .
Peleš Tadić, Adriana, Obradović, Nina, Kosanović, Darko, Blagojević, Vladimir A., Pavlović, Vladimir B., "Influence of mechanically activated ZnO powder content as a filler of polymer nanocomposites" in Programme [Elektronski izvor] ; and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2022, 05-08 July 2022, Zlatibor (2022):86-86,
https://hdl.handle.net/21.15107/rcub_dais_13601 .

Structural properties of FeCoV alloys produced by PIM / MIM technology

Nedeljković, Borivoje; Pavlović, Vladimir B.; Obradović, Nina; Mitrović, Nebojša S.

(Belgrade : Serbian Ceramic Society, 2022)

TY  - CONF
AU  - Nedeljković, Borivoje
AU  - Pavlović, Vladimir B.
AU  - Obradović, Nina
AU  - Mitrović, Nebojša S.
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13620
AB  - FeCoV alloys with high saturation magnetization and high Curie temperature, making them useful for high-temperature and power-dense applications (e. g. aviation device). In this study, we report the results of observing the structural properties of 49Fe49Co2V alloy produced by PIM / MIM technology. The starting granulate was prepared by mixing FeCoV powder with a low-viscosity binder. After injection, the raw “green” samples were first treated with a solvent and then thermally with the same aim of removing the binder. MIM technology is completed by high-temperature sintering of “brown” samples for 3.5 hours at temperatures from 1370 OC to 1460 OC in a hydrogen atmosphere, which provides the necessary magnetic and mechanical characteristics. Depending on the sintering temperature, structural parameters of particle size Dmax, Feret X, Feret Y were investigated and analysed.
PB  - Belgrade : Serbian Ceramic Society
C3  - Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application X New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 26-27. September 2022.
T1  - Structural properties of FeCoV alloys produced by PIM / MIM technology
SP  - 57
EP  - 57
UR  - https://hdl.handle.net/21.15107/rcub_dais_13620
ER  - 
@conference{
author = "Nedeljković, Borivoje and Pavlović, Vladimir B. and Obradović, Nina and Mitrović, Nebojša S.",
year = "2022",
abstract = "FeCoV alloys with high saturation magnetization and high Curie temperature, making them useful for high-temperature and power-dense applications (e. g. aviation device). In this study, we report the results of observing the structural properties of 49Fe49Co2V alloy produced by PIM / MIM technology. The starting granulate was prepared by mixing FeCoV powder with a low-viscosity binder. After injection, the raw “green” samples were first treated with a solvent and then thermally with the same aim of removing the binder. MIM technology is completed by high-temperature sintering of “brown” samples for 3.5 hours at temperatures from 1370 OC to 1460 OC in a hydrogen atmosphere, which provides the necessary magnetic and mechanical characteristics. Depending on the sintering temperature, structural parameters of particle size Dmax, Feret X, Feret Y were investigated and analysed.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application X New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 26-27. September 2022.",
title = "Structural properties of FeCoV alloys produced by PIM / MIM technology",
pages = "57-57",
url = "https://hdl.handle.net/21.15107/rcub_dais_13620"
}
Nedeljković, B., Pavlović, V. B., Obradović, N.,& Mitrović, N. S.. (2022). Structural properties of FeCoV alloys produced by PIM / MIM technology. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application X New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 26-27. September 2022.
Belgrade : Serbian Ceramic Society., 57-57.
https://hdl.handle.net/21.15107/rcub_dais_13620
Nedeljković B, Pavlović VB, Obradović N, Mitrović NS. Structural properties of FeCoV alloys produced by PIM / MIM technology. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application X New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 26-27. September 2022.. 2022;:57-57.
https://hdl.handle.net/21.15107/rcub_dais_13620 .
Nedeljković, Borivoje, Pavlović, Vladimir B., Obradović, Nina, Mitrović, Nebojša S., "Structural properties of FeCoV alloys produced by PIM / MIM technology" in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application X New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 26-27. September 2022. (2022):57-57,
https://hdl.handle.net/21.15107/rcub_dais_13620 .

Characteristic of photodiode based on vanadium oxide-TiO2 nanotubes/CH3NH3PbI3

Vujančević, Jelena; Blagojević, Vladimir A.; Andričević, Pavao; Pavlović, Vera P.; Horváth, Endre; Forró, László; Vlahović, Branislav; Pavlović, Vladimir B.; Janaćković, Đorđe

(Belgrade : Serbian Ceramic Society, 2022)

TY  - CONF
AU  - Vujančević, Jelena
AU  - Blagojević, Vladimir A.
AU  - Andričević, Pavao
AU  - Pavlović, Vera P.
AU  - Horváth, Endre
AU  - Forró, László
AU  - Vlahović, Branislav
AU  - Pavlović, Vladimir B.
AU  - Janaćković, Đorđe
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13627
AB  - The aim of this study was to investigate the influence of the deposition of vanadium oxide epitaxial layer on the photoresponse of TiO2/CH3NH3PbI3 heterojunction. TiO2 nanotube array was synthesized via anodization of titanium foil at three different voltages. After annealing at 450 °C, vanadium oxide was deposited by direct deposition from vanadyl(IV) sulfate solution. Microstructure analysis has been used for the investigation of the influence of different voltages of anodization on tube diameter. Spectroscopy measurements pointed out the red shift in diffusion reflectance spectra after deposition of vanadium oxide. The presence of V5+ oxidation state has been detected on the surface of nanotube arrays by chemical analysis. CH3NH3PbI3 monocrystal was dry pressed on top of the nanotubes in order to make a photodiode. The current-voltage characteristics of the photodiode were recorded and it was observed that the sample with the smallest wall thickness and higher amount of vanadium has the best photocurrent response.
PB  - Belgrade : Serbian Ceramic Society
C3  - Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application X New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 26-27. September 2022.
T1  - Characteristic of photodiode based on vanadium oxide-TiO2 nanotubes/CH3NH3PbI3
SP  - 90
EP  - 90
UR  - https://hdl.handle.net/21.15107/rcub_dais_13627
ER  - 
@conference{
author = "Vujančević, Jelena and Blagojević, Vladimir A. and Andričević, Pavao and Pavlović, Vera P. and Horváth, Endre and Forró, László and Vlahović, Branislav and Pavlović, Vladimir B. and Janaćković, Đorđe",
year = "2022",
abstract = "The aim of this study was to investigate the influence of the deposition of vanadium oxide epitaxial layer on the photoresponse of TiO2/CH3NH3PbI3 heterojunction. TiO2 nanotube array was synthesized via anodization of titanium foil at three different voltages. After annealing at 450 °C, vanadium oxide was deposited by direct deposition from vanadyl(IV) sulfate solution. Microstructure analysis has been used for the investigation of the influence of different voltages of anodization on tube diameter. Spectroscopy measurements pointed out the red shift in diffusion reflectance spectra after deposition of vanadium oxide. The presence of V5+ oxidation state has been detected on the surface of nanotube arrays by chemical analysis. CH3NH3PbI3 monocrystal was dry pressed on top of the nanotubes in order to make a photodiode. The current-voltage characteristics of the photodiode were recorded and it was observed that the sample with the smallest wall thickness and higher amount of vanadium has the best photocurrent response.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application X New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 26-27. September 2022.",
title = "Characteristic of photodiode based on vanadium oxide-TiO2 nanotubes/CH3NH3PbI3",
pages = "90-90",
url = "https://hdl.handle.net/21.15107/rcub_dais_13627"
}
Vujančević, J., Blagojević, V. A., Andričević, P., Pavlović, V. P., Horváth, E., Forró, L., Vlahović, B., Pavlović, V. B.,& Janaćković, Đ.. (2022). Characteristic of photodiode based on vanadium oxide-TiO2 nanotubes/CH3NH3PbI3. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application X New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 26-27. September 2022.
Belgrade : Serbian Ceramic Society., 90-90.
https://hdl.handle.net/21.15107/rcub_dais_13627
Vujančević J, Blagojević VA, Andričević P, Pavlović VP, Horváth E, Forró L, Vlahović B, Pavlović VB, Janaćković Đ. Characteristic of photodiode based on vanadium oxide-TiO2 nanotubes/CH3NH3PbI3. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application X New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 26-27. September 2022.. 2022;:90-90.
https://hdl.handle.net/21.15107/rcub_dais_13627 .
Vujančević, Jelena, Blagojević, Vladimir A., Andričević, Pavao, Pavlović, Vera P., Horváth, Endre, Forró, László, Vlahović, Branislav, Pavlović, Vladimir B., Janaćković, Đorđe, "Characteristic of photodiode based on vanadium oxide-TiO2 nanotubes/CH3NH3PbI3" in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application X New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 26-27. September 2022. (2022):90-90,
https://hdl.handle.net/21.15107/rcub_dais_13627 .

Overcoming phase separation in dual templating: A homogeneous hierarchical ZSM-5 zeolite with flower-like morphology, synthesis and in-depth acidity study

Bosnar, Sanja; Rac, Vladislav; Stošić, Dušan; Travert, Arnaud; Postole, Georgeta; Auroux, Aline; Škapin, Srečo Davor; Damjanović-Vasilić, Ljiljana S.; Bronić, Josip; Du, Xuesen; Marković, Smilja; Pavlović, Vladimir B.; Rakić, Vesna M.

(2022)

TY  - JOUR
AU  - Bosnar, Sanja
AU  - Rac, Vladislav
AU  - Stošić, Dušan
AU  - Travert, Arnaud
AU  - Postole, Georgeta
AU  - Auroux, Aline
AU  - Škapin, Srečo Davor
AU  - Damjanović-Vasilić, Ljiljana S.
AU  - Bronić, Josip
AU  - Du, Xuesen
AU  - Marković, Smilja
AU  - Pavlović, Vladimir B.
AU  - Rakić, Vesna M.
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13631
AB  - Dual templating approach, using hexadecyltrimethylammonium bromide (CTAB), was employed in an attempt to synthesize hierarchical ZSM-5 zeolite. Amount of mesoporogen and the duration of aging of the precursor were varied. Majority of the synthesis routes resulted in phase separation, yielding separate ZSM-5 and amorphous mesoporous material. The relative amounts of the two phases were dependent on the CTAB amount ratio and also significantly on the duration of precursor aging before CTAB addition. One particular combination of the two factors led to the formation of a homogeneous hierarchical form of ZSM-5 with leafy morphology, consisting of intergrown thin crystalline sheets which formed flower-like structures. The hierarchical ZSM-5 possessed significant microporous (≈95 m2/g) and highly developed mesoporous surface (≈470 m2/g), with a relatively broad distribution of mesopore sizes (<20 nm). The acidity of all samples was studied in detail. Isothermal microcalorimetry/volumetry of ammonia adsorption provided quantitative data on the number and distribution of strength of acidic sites. In situ FTIR of pyridine and collidine adsorption was used to quantify Brønsted and Lewis acid sites, and to provide information on their location - in the micropores or mesopores/external surface. The hierarchical ZSM-5 possessed both Lewis and Brønsted acidity, with Brønsted sites located mainly in the micropores. All samples were fully characterized using XRD, low temperature nitrogen adsorption, FESEM and EDS. The synthetic route used for obtaining the ZSM-5 zeolite with flower-like morphology is a simple strategy for preparing hierarchical ZSM-5 forms targeting enhanced diffusivity and accessibility of catalytically active sites.
T2  - Microporous and Mesoporous Materials
T1  - Overcoming phase separation in dual templating: A homogeneous hierarchical ZSM-5 zeolite with flower-like morphology, synthesis and in-depth acidity study
SP  - 111534
VL  - 329
DO  - 10.1016/j.micromeso.2021.111534
UR  - https://hdl.handle.net/21.15107/rcub_dais_13631
ER  - 
@article{
author = "Bosnar, Sanja and Rac, Vladislav and Stošić, Dušan and Travert, Arnaud and Postole, Georgeta and Auroux, Aline and Škapin, Srečo Davor and Damjanović-Vasilić, Ljiljana S. and Bronić, Josip and Du, Xuesen and Marković, Smilja and Pavlović, Vladimir B. and Rakić, Vesna M.",
year = "2022",
abstract = "Dual templating approach, using hexadecyltrimethylammonium bromide (CTAB), was employed in an attempt to synthesize hierarchical ZSM-5 zeolite. Amount of mesoporogen and the duration of aging of the precursor were varied. Majority of the synthesis routes resulted in phase separation, yielding separate ZSM-5 and amorphous mesoporous material. The relative amounts of the two phases were dependent on the CTAB amount ratio and also significantly on the duration of precursor aging before CTAB addition. One particular combination of the two factors led to the formation of a homogeneous hierarchical form of ZSM-5 with leafy morphology, consisting of intergrown thin crystalline sheets which formed flower-like structures. The hierarchical ZSM-5 possessed significant microporous (≈95 m2/g) and highly developed mesoporous surface (≈470 m2/g), with a relatively broad distribution of mesopore sizes (<20 nm). The acidity of all samples was studied in detail. Isothermal microcalorimetry/volumetry of ammonia adsorption provided quantitative data on the number and distribution of strength of acidic sites. In situ FTIR of pyridine and collidine adsorption was used to quantify Brønsted and Lewis acid sites, and to provide information on their location - in the micropores or mesopores/external surface. The hierarchical ZSM-5 possessed both Lewis and Brønsted acidity, with Brønsted sites located mainly in the micropores. All samples were fully characterized using XRD, low temperature nitrogen adsorption, FESEM and EDS. The synthetic route used for obtaining the ZSM-5 zeolite with flower-like morphology is a simple strategy for preparing hierarchical ZSM-5 forms targeting enhanced diffusivity and accessibility of catalytically active sites.",
journal = "Microporous and Mesoporous Materials",
title = "Overcoming phase separation in dual templating: A homogeneous hierarchical ZSM-5 zeolite with flower-like morphology, synthesis and in-depth acidity study",
pages = "111534",
volume = "329",
doi = "10.1016/j.micromeso.2021.111534",
url = "https://hdl.handle.net/21.15107/rcub_dais_13631"
}
Bosnar, S., Rac, V., Stošić, D., Travert, A., Postole, G., Auroux, A., Škapin, S. D., Damjanović-Vasilić, L. S., Bronić, J., Du, X., Marković, S., Pavlović, V. B.,& Rakić, V. M.. (2022). Overcoming phase separation in dual templating: A homogeneous hierarchical ZSM-5 zeolite with flower-like morphology, synthesis and in-depth acidity study. in Microporous and Mesoporous Materials, 329, 111534.
https://doi.org/10.1016/j.micromeso.2021.111534
https://hdl.handle.net/21.15107/rcub_dais_13631
Bosnar S, Rac V, Stošić D, Travert A, Postole G, Auroux A, Škapin SD, Damjanović-Vasilić LS, Bronić J, Du X, Marković S, Pavlović VB, Rakić VM. Overcoming phase separation in dual templating: A homogeneous hierarchical ZSM-5 zeolite with flower-like morphology, synthesis and in-depth acidity study. in Microporous and Mesoporous Materials. 2022;329:111534.
doi:10.1016/j.micromeso.2021.111534
https://hdl.handle.net/21.15107/rcub_dais_13631 .
Bosnar, Sanja, Rac, Vladislav, Stošić, Dušan, Travert, Arnaud, Postole, Georgeta, Auroux, Aline, Škapin, Srečo Davor, Damjanović-Vasilić, Ljiljana S., Bronić, Josip, Du, Xuesen, Marković, Smilja, Pavlović, Vladimir B., Rakić, Vesna M., "Overcoming phase separation in dual templating: A homogeneous hierarchical ZSM-5 zeolite with flower-like morphology, synthesis and in-depth acidity study" in Microporous and Mesoporous Materials, 329 (2022):111534,
https://doi.org/10.1016/j.micromeso.2021.111534 .,
https://hdl.handle.net/21.15107/rcub_dais_13631 .
3
12
1
11

High Heat Treatment of Goat Cheese Milk. The Effect on Sensory Profile, Consumer Acceptance and Microstructure of Cheese

Miloradović, Zorana; Tomić, Nikola; Kljajević, Nemanja; Lević, Steva; Pavlović, Vladimir B.; Blažić, Marijana; Miočinović, Jelena

(Basel : MDPI AG, 2021)

TY  - JOUR
AU  - Miloradović, Zorana
AU  - Tomić, Nikola
AU  - Kljajević, Nemanja
AU  - Lević, Steva
AU  - Pavlović, Vladimir B.
AU  - Blažić, Marijana
AU  - Miočinović, Jelena
PY  - 2021
UR  - https://dais.sanu.ac.rs/123456789/11644
AB  - Goat cheeses from high heat treated milk (HHTM: 80 °C/5 min (E1) and 90 °C/5 min (E2)), could be regarded as new products, compared to their analogues made from commonly pasteurized milk (65 °C/30 min (C)). Descriptive analysis and consumer tests with a hedonic scale and JAR scale were part of the product development process. The use of scanning electron microscopy enabled deeper insight into the flavor and texture of the cheeses. In all cheese variants, goaty flavor was mildly pronounced. Young HHTM cheeses also had a pronounced whey and cooked/milky flavor. Consumers found such flavor ‘too intensive’. Unlike the control variant, HHTM cheeses were not described as ‘too hard’. Such improvement in texture was found to be a result of fine, highly branched microstructure, sustained over the course of ripening time and highly incorporated milk fat globules inside the cheese mass. Cluster analysis showed that the largest group of consumers (47.5%) preferred E2 cheese. Although consumers found that most of the cheeses were ‘too salty’, this excess did not decrease their overall acceptance. Neither microstructure analysis nor descriptive sensory analysis of goat white brined cheeses produced from high heat treated milk has been done before.
PB  - Basel : MDPI AG
T2  - Foods
T1  - High Heat Treatment of Goat Cheese Milk. The Effect on Sensory Profile, Consumer Acceptance and Microstructure of Cheese
SP  - 1116
VL  - 10
IS  - 5
DO  - 10.3390/foods10051116
UR  - https://hdl.handle.net/21.15107/rcub_dais_11644
ER  - 
@article{
author = "Miloradović, Zorana and Tomić, Nikola and Kljajević, Nemanja and Lević, Steva and Pavlović, Vladimir B. and Blažić, Marijana and Miočinović, Jelena",
year = "2021",
abstract = "Goat cheeses from high heat treated milk (HHTM: 80 °C/5 min (E1) and 90 °C/5 min (E2)), could be regarded as new products, compared to their analogues made from commonly pasteurized milk (65 °C/30 min (C)). Descriptive analysis and consumer tests with a hedonic scale and JAR scale were part of the product development process. The use of scanning electron microscopy enabled deeper insight into the flavor and texture of the cheeses. In all cheese variants, goaty flavor was mildly pronounced. Young HHTM cheeses also had a pronounced whey and cooked/milky flavor. Consumers found such flavor ‘too intensive’. Unlike the control variant, HHTM cheeses were not described as ‘too hard’. Such improvement in texture was found to be a result of fine, highly branched microstructure, sustained over the course of ripening time and highly incorporated milk fat globules inside the cheese mass. Cluster analysis showed that the largest group of consumers (47.5%) preferred E2 cheese. Although consumers found that most of the cheeses were ‘too salty’, this excess did not decrease their overall acceptance. Neither microstructure analysis nor descriptive sensory analysis of goat white brined cheeses produced from high heat treated milk has been done before.",
publisher = "Basel : MDPI AG",
journal = "Foods",
title = "High Heat Treatment of Goat Cheese Milk. The Effect on Sensory Profile, Consumer Acceptance and Microstructure of Cheese",
pages = "1116",
volume = "10",
number = "5",
doi = "10.3390/foods10051116",
url = "https://hdl.handle.net/21.15107/rcub_dais_11644"
}
Miloradović, Z., Tomić, N., Kljajević, N., Lević, S., Pavlović, V. B., Blažić, M.,& Miočinović, J.. (2021). High Heat Treatment of Goat Cheese Milk. The Effect on Sensory Profile, Consumer Acceptance and Microstructure of Cheese. in Foods
Basel : MDPI AG., 10(5), 1116.
https://doi.org/10.3390/foods10051116
https://hdl.handle.net/21.15107/rcub_dais_11644
Miloradović Z, Tomić N, Kljajević N, Lević S, Pavlović VB, Blažić M, Miočinović J. High Heat Treatment of Goat Cheese Milk. The Effect on Sensory Profile, Consumer Acceptance and Microstructure of Cheese. in Foods. 2021;10(5):1116.
doi:10.3390/foods10051116
https://hdl.handle.net/21.15107/rcub_dais_11644 .
Miloradović, Zorana, Tomić, Nikola, Kljajević, Nemanja, Lević, Steva, Pavlović, Vladimir B., Blažić, Marijana, Miočinović, Jelena, "High Heat Treatment of Goat Cheese Milk. The Effect on Sensory Profile, Consumer Acceptance and Microstructure of Cheese" in Foods, 10, no. 5 (2021):1116,
https://doi.org/10.3390/foods10051116 .,
https://hdl.handle.net/21.15107/rcub_dais_11644 .
1
1