Vasiljević, Zorka Ž.

Link to this page

Authority KeyName Variants
orcid::0000-0002-7817-8648
  • Vasiljević, Zorka Ž. (47)
  • Đurić, Zorka Ž. (12)
Projects
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
Directed synthesis, structure and properties of multifunctional materials Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200053 (University of Belgrade, Institute for Multidisciplinary Research)
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) Innovative electronic components and systems based on inorganic and organic technologies embedded in consumer goods and products
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200156 (University of Novi Sad, Faculty of Technical Science) Bilateral collaboration between Serbia and Slovenia (BI-RS-18-19-026)
Bilateral cooperation program between the Republic of Serbia and the Republic of Slovenia, 2012–2013 Low-cost and energy-efficient LTCC sensor/IR-UWB transceiver solutions for sustainable healthy environment
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) Novel encapsulation and enzyme technologies for designing of new biocatalysts and biologically active compounds targeting enhancement of food quality, safety and competitiveness
Ministry for Education, Science and Technological Development of the Republic of Serbia United States National Science Foundation (NSF), DMR-0654118
University of Akron Faculty Research Grant UW Oshkosh, FDR772

Author's Bibliography

Electrospun Nickel Manganite (NiMn2O4) Nanocrystalline Fibers for Humidity and Temperature Sensing

Dojčinović, Milena P.; Vasiljević, Zorka Ž.; Krstić, Jugoslav B.; Vujančević, Jelena D.; Marković, Smilja; Tadić, Nenad B.; Nikolic, Maria Vesna

(Basel : MDPI AG, 2021)

TY  - JOUR
AU  - Dojčinović, Milena P.
AU  - Vasiljević, Zorka Ž.
AU  - Krstić, Jugoslav B.
AU  - Vujančević, Jelena D.
AU  - Marković, Smilja
AU  - Tadić, Nenad B.
AU  - Nikolic, Maria Vesna
PY  - 2021
UR  - https://dais.sanu.ac.rs/123456789/11797
AB  - Nickel manganite nanocrystalline fibers were obtained by electrospinning and subsequent calcination at 400 °C. As-spun fibers were characterized by TG/DTA, Scanning Electron Microscopy and FT-IR spectroscopy analysis. X-ray diffraction and FT-IR spectroscopy analysis confirmed the formation of nickel manganite with a cubic spinel structure, while N2 physisorption at 77 K enabled determination of the BET specific surface area as 25.3 m2/g and (BJH) mesopore volume as 21.5 m2/g. The material constant (B) of the nanocrystalline nickel manganite fibers applied by drop-casting on test interdigitated electrodes on alumina substrate, dried at room temperature, was determined as 4379 K in the 20–50 °C temperature range and a temperature sensitivity of −4.95%/K at room temperature (25 °C). The change of impedance with relative humidity was monitored at 25 and 50 °C for a relative humidity (RH) change of 40 to 90% in the 42 Hzπ1 MHz frequency range. At 100 Hz and 25 °C, the sensitivity of 327.36 ± 80.12 kΩ/%RH was determined, showing that nickel manganite obtained by electrospinning has potential as a multifunctional material for combined humidity and temperature sensing.
PB  - Basel : MDPI AG
T2  - Sensors
T1  - Electrospun Nickel Manganite (NiMn2O4) Nanocrystalline Fibers for Humidity and Temperature Sensing
SP  - 4357
VL  - 21
IS  - 13
DO  - 10.3390/s21134357
UR  - https://hdl.handle.net/21.15107/rcub_dais_11797
ER  - 
@article{
author = "Dojčinović, Milena P. and Vasiljević, Zorka Ž. and Krstić, Jugoslav B. and Vujančević, Jelena D. and Marković, Smilja and Tadić, Nenad B. and Nikolic, Maria Vesna",
year = "2021",
abstract = "Nickel manganite nanocrystalline fibers were obtained by electrospinning and subsequent calcination at 400 °C. As-spun fibers were characterized by TG/DTA, Scanning Electron Microscopy and FT-IR spectroscopy analysis. X-ray diffraction and FT-IR spectroscopy analysis confirmed the formation of nickel manganite with a cubic spinel structure, while N2 physisorption at 77 K enabled determination of the BET specific surface area as 25.3 m2/g and (BJH) mesopore volume as 21.5 m2/g. The material constant (B) of the nanocrystalline nickel manganite fibers applied by drop-casting on test interdigitated electrodes on alumina substrate, dried at room temperature, was determined as 4379 K in the 20–50 °C temperature range and a temperature sensitivity of −4.95%/K at room temperature (25 °C). The change of impedance with relative humidity was monitored at 25 and 50 °C for a relative humidity (RH) change of 40 to 90% in the 42 Hzπ1 MHz frequency range. At 100 Hz and 25 °C, the sensitivity of 327.36 ± 80.12 kΩ/%RH was determined, showing that nickel manganite obtained by electrospinning has potential as a multifunctional material for combined humidity and temperature sensing.",
publisher = "Basel : MDPI AG",
journal = "Sensors",
title = "Electrospun Nickel Manganite (NiMn2O4) Nanocrystalline Fibers for Humidity and Temperature Sensing",
pages = "4357",
volume = "21",
number = "13",
doi = "10.3390/s21134357",
url = "https://hdl.handle.net/21.15107/rcub_dais_11797"
}
Dojčinović, M. P., Vasiljević, Z. Ž., Krstić, J. B., Vujančević, J. D., Marković, S., Tadić, N. B.,& Nikolic, M. V.. (2021). Electrospun Nickel Manganite (NiMn2O4) Nanocrystalline Fibers for Humidity and Temperature Sensing. in Sensors
Basel : MDPI AG., 21(13), 4357.
https://doi.org/10.3390/s21134357
https://hdl.handle.net/21.15107/rcub_dais_11797
Dojčinović MP, Vasiljević ZŽ, Krstić JB, Vujančević JD, Marković S, Tadić NB, Nikolic MV. Electrospun Nickel Manganite (NiMn2O4) Nanocrystalline Fibers for Humidity and Temperature Sensing. in Sensors. 2021;21(13):4357.
doi:10.3390/s21134357
https://hdl.handle.net/21.15107/rcub_dais_11797 .
Dojčinović, Milena P., Vasiljević, Zorka Ž., Krstić, Jugoslav B., Vujančević, Jelena D., Marković, Smilja, Tadić, Nenad B., Nikolic, Maria Vesna, "Electrospun Nickel Manganite (NiMn2O4) Nanocrystalline Fibers for Humidity and Temperature Sensing" in Sensors, 21, no. 13 (2021):4357,
https://doi.org/10.3390/s21134357 .,
https://hdl.handle.net/21.15107/rcub_dais_11797 .
1
1
1

Synthesis and antibacterial activity of iron manganite (FeMnO3) particles against the environmental bacterium Bacillus subtilis

Vasiljević, Zorka Ž.; Dojčinović, Milena; Krstić, Jugoslav B.; Ribić, Vesna; Tadić, Nenad B.; Ognjanović, Miloš; Auger, Sandrine; Vidić, Jasmina; Nikolić, Maria Vesna

(Royal Society of Chemistry, 2020)

TY  - JOUR
AU  - Vasiljević, Zorka Ž.
AU  - Dojčinović, Milena
AU  - Krstić, Jugoslav B.
AU  - Ribić, Vesna
AU  - Tadić, Nenad B.
AU  - Ognjanović, Miloš
AU  - Auger, Sandrine
AU  - Vidić, Jasmina
AU  - Nikolić, Maria Vesna
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/7780
AB  - Nanocrystalline iron manganite powder was synthesized using the sol–gel combustion process, with glycine as fuel. It was further calcined at 900 °C for 8 h, resulting in the formation of a loose cubic FeMnO3 powder with a small specific surface area, net-like structure and plate-like particles as confirmed by XRD, N2 physisorption, FESEM and TEM analyses. The metal ion release was studied by ICP-OES and showed that less than 10 ppb of Fe or Mn ions were released by leaching in water, but 0.36 ppm Fe and 3.69 ppm Mn was found in LB (Luria–Bertani) bacterial medium. The generation of reactive oxygen species (ROS) was monitored in distilled water and bacterial medium and showed that FeMnO3 particles do not generate O2˙− ions with or without UV irradiation, but synthesize H2O2 and show an antioxidative effect. Besides the higher stability of FeMnO3 particles in aqueous solution they showed an inhibitory effect on Bacillus subtilis growth in LB medium even at low concentrations (0.01 mg ml−1), but not in BHI medium even at 1 mg ml−1. This study points out that the mechanism of antibacterial action of engineered metal oxides needs continued investigation and specific experimental controls.
PB  - Royal Society of Chemistry
T2  - RSC Advances
T1  - Synthesis and antibacterial activity of iron manganite (FeMnO3) particles against the environmental bacterium Bacillus subtilis
SP  - 13879
EP  - 13888
VL  - 10
IS  - 23
DO  - 10.1039/D0RA01809K
UR  - https://hdl.handle.net/21.15107/rcub_dais_7780
ER  - 
@article{
author = "Vasiljević, Zorka Ž. and Dojčinović, Milena and Krstić, Jugoslav B. and Ribić, Vesna and Tadić, Nenad B. and Ognjanović, Miloš and Auger, Sandrine and Vidić, Jasmina and Nikolić, Maria Vesna",
year = "2020",
abstract = "Nanocrystalline iron manganite powder was synthesized using the sol–gel combustion process, with glycine as fuel. It was further calcined at 900 °C for 8 h, resulting in the formation of a loose cubic FeMnO3 powder with a small specific surface area, net-like structure and plate-like particles as confirmed by XRD, N2 physisorption, FESEM and TEM analyses. The metal ion release was studied by ICP-OES and showed that less than 10 ppb of Fe or Mn ions were released by leaching in water, but 0.36 ppm Fe and 3.69 ppm Mn was found in LB (Luria–Bertani) bacterial medium. The generation of reactive oxygen species (ROS) was monitored in distilled water and bacterial medium and showed that FeMnO3 particles do not generate O2˙− ions with or without UV irradiation, but synthesize H2O2 and show an antioxidative effect. Besides the higher stability of FeMnO3 particles in aqueous solution they showed an inhibitory effect on Bacillus subtilis growth in LB medium even at low concentrations (0.01 mg ml−1), but not in BHI medium even at 1 mg ml−1. This study points out that the mechanism of antibacterial action of engineered metal oxides needs continued investigation and specific experimental controls.",
publisher = "Royal Society of Chemistry",
journal = "RSC Advances",
title = "Synthesis and antibacterial activity of iron manganite (FeMnO3) particles against the environmental bacterium Bacillus subtilis",
pages = "13879-13888",
volume = "10",
number = "23",
doi = "10.1039/D0RA01809K",
url = "https://hdl.handle.net/21.15107/rcub_dais_7780"
}
Vasiljević, Z. Ž., Dojčinović, M., Krstić, J. B., Ribić, V., Tadić, N. B., Ognjanović, M., Auger, S., Vidić, J.,& Nikolić, M. V.. (2020). Synthesis and antibacterial activity of iron manganite (FeMnO3) particles against the environmental bacterium Bacillus subtilis. in RSC Advances
Royal Society of Chemistry., 10(23), 13879-13888.
https://doi.org/10.1039/D0RA01809K
https://hdl.handle.net/21.15107/rcub_dais_7780
Vasiljević ZŽ, Dojčinović M, Krstić JB, Ribić V, Tadić NB, Ognjanović M, Auger S, Vidić J, Nikolić MV. Synthesis and antibacterial activity of iron manganite (FeMnO3) particles against the environmental bacterium Bacillus subtilis. in RSC Advances. 2020;10(23):13879-13888.
doi:10.1039/D0RA01809K
https://hdl.handle.net/21.15107/rcub_dais_7780 .
Vasiljević, Zorka Ž., Dojčinović, Milena, Krstić, Jugoslav B., Ribić, Vesna, Tadić, Nenad B., Ognjanović, Miloš, Auger, Sandrine, Vidić, Jasmina, Nikolić, Maria Vesna, "Synthesis and antibacterial activity of iron manganite (FeMnO3) particles against the environmental bacterium Bacillus subtilis" in RSC Advances, 10, no. 23 (2020):13879-13888,
https://doi.org/10.1039/D0RA01809K .,
https://hdl.handle.net/21.15107/rcub_dais_7780 .
8
8
8

Photocatalytic degradation of methylene blue under natural sunlight using iron titanate nanoparticles prepared by a modified sol–gel method

Vasiljević, Zorka Ž.; Dojčinović, Milena; Vujančević, Jelena; Janković Častvan, Ivona; Ognjanović, M.; Tadić, Nenad B.; Stojadinović, Stevan; Branković, Goran; Nikolić, Maria Vesna

(Royal Society, 2020)

TY  - JOUR
AU  - Vasiljević, Zorka Ž.
AU  - Dojčinović, Milena
AU  - Vujančević, Jelena
AU  - Janković Častvan, Ivona
AU  - Ognjanović, M.
AU  - Tadić, Nenad B.
AU  - Stojadinović, Stevan
AU  - Branković, Goran
AU  - Nikolić, Maria Vesna
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/9107
AB  - The aim of this work was to synthesize semiconducting oxide nanoparticles using a simple method with low production cost to be applied in natural sunlight for photocatalytic degradation of pollutants in waste water. Iron titanate (Fe2TiO5) nanoparticles with an orthorhombic structure were successfully synthesized using a modified sol–gel method and calcination at 750°C. The as-prepared Fe2TiO5 nanoparticles exhibited a moderate specific surface area. The mesoporous Fe2TiO5 nanoparticles possessed strong absorption in the visible-light region and the band gap was estimated to be around 2.16 eV. The photocatalytic activity was evaluated by the degradation of methylene blue under natural sunlight. The effect of parameters such as the amount of catalyst, initial concentration of the dye and pH of the dye solution on the removal efficiency of methylene blue was investigated. Fe2TiO5 showed high degradation efficiency in a strong alkaline medium that can be the result of the facilitated formation of OH radicals due to an increased concentration of hydroxyl ions.
PB  - Royal Society
T2  - Royal Society Open Science
T1  - Photocatalytic degradation of methylene blue under natural sunlight using iron titanate nanoparticles prepared by a modified sol–gel method
VL  - 7
IS  - 9
DO  - 10.1098/rsos.200708
UR  - https://hdl.handle.net/21.15107/rcub_dais_9107
ER  - 
@article{
author = "Vasiljević, Zorka Ž. and Dojčinović, Milena and Vujančević, Jelena and Janković Častvan, Ivona and Ognjanović, M. and Tadić, Nenad B. and Stojadinović, Stevan and Branković, Goran and Nikolić, Maria Vesna",
year = "2020",
abstract = "The aim of this work was to synthesize semiconducting oxide nanoparticles using a simple method with low production cost to be applied in natural sunlight for photocatalytic degradation of pollutants in waste water. Iron titanate (Fe2TiO5) nanoparticles with an orthorhombic structure were successfully synthesized using a modified sol–gel method and calcination at 750°C. The as-prepared Fe2TiO5 nanoparticles exhibited a moderate specific surface area. The mesoporous Fe2TiO5 nanoparticles possessed strong absorption in the visible-light region and the band gap was estimated to be around 2.16 eV. The photocatalytic activity was evaluated by the degradation of methylene blue under natural sunlight. The effect of parameters such as the amount of catalyst, initial concentration of the dye and pH of the dye solution on the removal efficiency of methylene blue was investigated. Fe2TiO5 showed high degradation efficiency in a strong alkaline medium that can be the result of the facilitated formation of OH radicals due to an increased concentration of hydroxyl ions.",
publisher = "Royal Society",
journal = "Royal Society Open Science",
title = "Photocatalytic degradation of methylene blue under natural sunlight using iron titanate nanoparticles prepared by a modified sol–gel method",
volume = "7",
number = "9",
doi = "10.1098/rsos.200708",
url = "https://hdl.handle.net/21.15107/rcub_dais_9107"
}
Vasiljević, Z. Ž., Dojčinović, M., Vujančević, J., Janković Častvan, I., Ognjanović, M., Tadić, N. B., Stojadinović, S., Branković, G.,& Nikolić, M. V.. (2020). Photocatalytic degradation of methylene blue under natural sunlight using iron titanate nanoparticles prepared by a modified sol–gel method. in Royal Society Open Science
Royal Society., 7(9).
https://doi.org/10.1098/rsos.200708
https://hdl.handle.net/21.15107/rcub_dais_9107
Vasiljević ZŽ, Dojčinović M, Vujančević J, Janković Častvan I, Ognjanović M, Tadić NB, Stojadinović S, Branković G, Nikolić MV. Photocatalytic degradation of methylene blue under natural sunlight using iron titanate nanoparticles prepared by a modified sol–gel method. in Royal Society Open Science. 2020;7(9).
doi:10.1098/rsos.200708
https://hdl.handle.net/21.15107/rcub_dais_9107 .
Vasiljević, Zorka Ž., Dojčinović, Milena, Vujančević, Jelena, Janković Častvan, Ivona, Ognjanović, M., Tadić, Nenad B., Stojadinović, Stevan, Branković, Goran, Nikolić, Maria Vesna, "Photocatalytic degradation of methylene blue under natural sunlight using iron titanate nanoparticles prepared by a modified sol–gel method" in Royal Society Open Science, 7, no. 9 (2020),
https://doi.org/10.1098/rsos.200708 .,
https://hdl.handle.net/21.15107/rcub_dais_9107 .
16
8

Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite

Nikolić, Maria Vesna; Vasiljević, Zorka Ž.; Dojčinović, Milena P.; Vujančević, Jelena; Radovanović, Milan

(IEEE, 2020)

TY  - CONF
AU  - Nikolić, Maria Vesna
AU  - Vasiljević, Zorka Ž.
AU  - Dojčinović, Milena P.
AU  - Vujančević, Jelena
AU  - Radovanović, Milan
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/8965
AB  - This work deals with our continued research of oxide materials for potential application in gas/humidity sensing. We have made thick film samples using iron manganite powder synthesized by a sol-gel combustion method with a net-like structure, by screen printing on alumina substrate with PdAg interdigitated electrodes. The thick film samples were fired at two temperatures 600 and 800°C. The powder morphology was retained and only the organic compounds in the paste were burnt-out at 600°C, while at 800°C the thick film surface morphology was different where grain growth and individual particles can be observed. We measured complex impedance in a temperature and humidity chamber at room temperature (25°C) in the relative humidity range 30 – 90 % and frequency 100 Hz - 1 MHz. The thick film surface morphology has a significant influence on the effect of humidity on complex impedance. The complex impedance of thick films fired at 600°C was high and did not decrease noticeably with increase in relative humidity (RH), except for RH 80 and 90%, while thick film samples fired at 800°C had an overall lower impedance that reduced more noticeably with increase in RH 40–70% and even more for RH 80 and 90%.
PB  - IEEE
C3  - 2020 43rd International Spring Seminar on Electronics Technology (ISSE)
T1  - Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite
SP  - 1
EP  - 5
DO  - 10.1109/ISSE49702.2020.9120967
UR  - https://hdl.handle.net/21.15107/rcub_dais_8965
ER  - 
@conference{
author = "Nikolić, Maria Vesna and Vasiljević, Zorka Ž. and Dojčinović, Milena P. and Vujančević, Jelena and Radovanović, Milan",
year = "2020",
abstract = "This work deals with our continued research of oxide materials for potential application in gas/humidity sensing. We have made thick film samples using iron manganite powder synthesized by a sol-gel combustion method with a net-like structure, by screen printing on alumina substrate with PdAg interdigitated electrodes. The thick film samples were fired at two temperatures 600 and 800°C. The powder morphology was retained and only the organic compounds in the paste were burnt-out at 600°C, while at 800°C the thick film surface morphology was different where grain growth and individual particles can be observed. We measured complex impedance in a temperature and humidity chamber at room temperature (25°C) in the relative humidity range 30 – 90 % and frequency 100 Hz - 1 MHz. The thick film surface morphology has a significant influence on the effect of humidity on complex impedance. The complex impedance of thick films fired at 600°C was high and did not decrease noticeably with increase in relative humidity (RH), except for RH 80 and 90%, while thick film samples fired at 800°C had an overall lower impedance that reduced more noticeably with increase in RH 40–70% and even more for RH 80 and 90%.",
publisher = "IEEE",
journal = "2020 43rd International Spring Seminar on Electronics Technology (ISSE)",
title = "Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite",
pages = "1-5",
doi = "10.1109/ISSE49702.2020.9120967",
url = "https://hdl.handle.net/21.15107/rcub_dais_8965"
}
Nikolić, M. V., Vasiljević, Z. Ž., Dojčinović, M. P., Vujančević, J.,& Radovanović, M.. (2020). Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite. in 2020 43rd International Spring Seminar on Electronics Technology (ISSE)
IEEE., 1-5.
https://doi.org/10.1109/ISSE49702.2020.9120967
https://hdl.handle.net/21.15107/rcub_dais_8965
Nikolić MV, Vasiljević ZŽ, Dojčinović MP, Vujančević J, Radovanović M. Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite. in 2020 43rd International Spring Seminar on Electronics Technology (ISSE). 2020;:1-5.
doi:10.1109/ISSE49702.2020.9120967
https://hdl.handle.net/21.15107/rcub_dais_8965 .
Nikolić, Maria Vesna, Vasiljević, Zorka Ž., Dojčinović, Milena P., Vujančević, Jelena, Radovanović, Milan, "Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite" in 2020 43rd International Spring Seminar on Electronics Technology (ISSE) (2020):1-5,
https://doi.org/10.1109/ISSE49702.2020.9120967 .,
https://hdl.handle.net/21.15107/rcub_dais_8965 .

Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite

Nikolić, Maria Vesna; Vasiljević, Zorka Ž.; Dojčinović, Milena; Vujančević, Jelena; Radovanović, Milan

(IEEE, 2020)

TY  - CONF
AU  - Nikolić, Maria Vesna
AU  - Vasiljević, Zorka Ž.
AU  - Dojčinović, Milena
AU  - Vujančević, Jelena
AU  - Radovanović, Milan
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/10026
AB  - This work deals with our continued research of oxide materials for potential application in gas/humidity sensing. We have made thick film samples using iron manganite powder synthesized by a sol-gel combustion method with a net-like structure, by screen printing on alumina substrate with PdAg interdigitated electrodes. The thick film samples were fired at two temperatures 600 and 800°C. The powder morphology was retained and only the organic compounds in the paste were burnt-out at 600°C, while at 800°C the thick film surface morphology was different where grain growth and individual particles can be observed. We measured complex impedance in a temperature and humidity chamber at room temperature (25°C) in the relative humidity range 30 – 90 % and frequency 100 Hz - 1 MHz. The thick film surface morphology has a significant influence on the effect of humidity on complex impedance. The complex impedance of thick films fired at 600°C was high and did not decrease noticeably with increase in relative humidity (RH), except for RH 80 and 90%, while thick film samples fired at 800°C had an overall lower impedance that reduced more noticeably with increase in RH 40–70% and even more for RH 80 and 90%.
PB  - IEEE
C3  - 2020 43rd International Spring Seminar on Electronics Technology (ISSE)
T1  - Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite
SP  - 1
EP  - 5
DO  - 10.1109/ISSE49702.2020.9120967
UR  - https://hdl.handle.net/21.15107/rcub_dais_10026
ER  - 
@conference{
author = "Nikolić, Maria Vesna and Vasiljević, Zorka Ž. and Dojčinović, Milena and Vujančević, Jelena and Radovanović, Milan",
year = "2020",
abstract = "This work deals with our continued research of oxide materials for potential application in gas/humidity sensing. We have made thick film samples using iron manganite powder synthesized by a sol-gel combustion method with a net-like structure, by screen printing on alumina substrate with PdAg interdigitated electrodes. The thick film samples were fired at two temperatures 600 and 800°C. The powder morphology was retained and only the organic compounds in the paste were burnt-out at 600°C, while at 800°C the thick film surface morphology was different where grain growth and individual particles can be observed. We measured complex impedance in a temperature and humidity chamber at room temperature (25°C) in the relative humidity range 30 – 90 % and frequency 100 Hz - 1 MHz. The thick film surface morphology has a significant influence on the effect of humidity on complex impedance. The complex impedance of thick films fired at 600°C was high and did not decrease noticeably with increase in relative humidity (RH), except for RH 80 and 90%, while thick film samples fired at 800°C had an overall lower impedance that reduced more noticeably with increase in RH 40–70% and even more for RH 80 and 90%.",
publisher = "IEEE",
journal = "2020 43rd International Spring Seminar on Electronics Technology (ISSE)",
title = "Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite",
pages = "1-5",
doi = "10.1109/ISSE49702.2020.9120967",
url = "https://hdl.handle.net/21.15107/rcub_dais_10026"
}
Nikolić, M. V., Vasiljević, Z. Ž., Dojčinović, M., Vujančević, J.,& Radovanović, M.. (2020). Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite. in 2020 43rd International Spring Seminar on Electronics Technology (ISSE)
IEEE., 1-5.
https://doi.org/10.1109/ISSE49702.2020.9120967
https://hdl.handle.net/21.15107/rcub_dais_10026
Nikolić MV, Vasiljević ZŽ, Dojčinović M, Vujančević J, Radovanović M. Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite. in 2020 43rd International Spring Seminar on Electronics Technology (ISSE). 2020;:1-5.
doi:10.1109/ISSE49702.2020.9120967
https://hdl.handle.net/21.15107/rcub_dais_10026 .
Nikolić, Maria Vesna, Vasiljević, Zorka Ž., Dojčinović, Milena, Vujančević, Jelena, Radovanović, Milan, "Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite" in 2020 43rd International Spring Seminar on Electronics Technology (ISSE) (2020):1-5,
https://doi.org/10.1109/ISSE49702.2020.9120967 .,
https://hdl.handle.net/21.15107/rcub_dais_10026 .

Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material

Nikolić, Maria Vesna; Dojčinović, Milena; Vasiljević, Zorka Ž.; Luković, Miloljub D.; Labus, Nebojša

(IEEE, 2020)

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Dojčinović, Milena
AU  - Vasiljević, Zorka Ž.
AU  - Luković, Miloljub D.
AU  - Labus, Nebojša
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/7450
AB  - Nanocomposite Zn2SnO4/SnO2 powder was
obtained by solid state synthesis from homogenized
starting nanopowders of ZnO and SnO2, mixed in the 1:1
molar ratio, structurally and morphologically characterized
using X-ray diffraction (XRD) and Scanning Electron
Microscopy (SEM). Thick film paste was made by adding
organic vehicles to the obtained powder. Three to five
layers (layer thickness approx. 12 µm) were screen printed
on alumina substrate with small test PdAg electrodes and
fired at 600oC for 30 minutes. SEM analysis confirmed formation of a porous structure suitable for humidity sensing.
Impedance response was studied at the working temperatures of 25 and 50oC in a humidity chamber where the
relative humidity (RH) was 30-90% and measured frequency 42 Hz – 1 MHz. With increase in film thickness the overall
sensor impedance increased. It reduced at 100 Hz from 36 to 0.25 MΩ (60 µm), from 23.4 to 0.25 MΩ (48 µm) and from
6.8 to 0.02 MΩ (36 µm) at 25 oC, while at 50 oC and also 100 Hz it reduced from 14 MΩ to 0.72 MΩ (48 µm) for RH 30 and
90%, respectively. The response (8 s) and recovery (10 s) was fast, showing that this nanocomposite has potential for
application in humidity sensing.
PB  - IEEE
T2  - IEEE Sensors Journal
T1  - Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material
SP  - 7509
EP  - 7516
VL  - 20
IS  - 14
DO  - 10.1109/JSEN.2020.2983135
UR  - https://hdl.handle.net/21.15107/rcub_dais_7450
ER  - 
@article{
author = "Nikolić, Maria Vesna and Dojčinović, Milena and Vasiljević, Zorka Ž. and Luković, Miloljub D. and Labus, Nebojša",
year = "2020",
abstract = "Nanocomposite Zn2SnO4/SnO2 powder was
obtained by solid state synthesis from homogenized
starting nanopowders of ZnO and SnO2, mixed in the 1:1
molar ratio, structurally and morphologically characterized
using X-ray diffraction (XRD) and Scanning Electron
Microscopy (SEM). Thick film paste was made by adding
organic vehicles to the obtained powder. Three to five
layers (layer thickness approx. 12 µm) were screen printed
on alumina substrate with small test PdAg electrodes and
fired at 600oC for 30 minutes. SEM analysis confirmed formation of a porous structure suitable for humidity sensing.
Impedance response was studied at the working temperatures of 25 and 50oC in a humidity chamber where the
relative humidity (RH) was 30-90% and measured frequency 42 Hz – 1 MHz. With increase in film thickness the overall
sensor impedance increased. It reduced at 100 Hz from 36 to 0.25 MΩ (60 µm), from 23.4 to 0.25 MΩ (48 µm) and from
6.8 to 0.02 MΩ (36 µm) at 25 oC, while at 50 oC and also 100 Hz it reduced from 14 MΩ to 0.72 MΩ (48 µm) for RH 30 and
90%, respectively. The response (8 s) and recovery (10 s) was fast, showing that this nanocomposite has potential for
application in humidity sensing.",
publisher = "IEEE",
journal = "IEEE Sensors Journal",
title = "Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material",
pages = "7509-7516",
volume = "20",
number = "14",
doi = "10.1109/JSEN.2020.2983135",
url = "https://hdl.handle.net/21.15107/rcub_dais_7450"
}
Nikolić, M. V., Dojčinović, M., Vasiljević, Z. Ž., Luković, M. D.,& Labus, N.. (2020). Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material. in IEEE Sensors Journal
IEEE., 20(14), 7509-7516.
https://doi.org/10.1109/JSEN.2020.2983135
https://hdl.handle.net/21.15107/rcub_dais_7450
Nikolić MV, Dojčinović M, Vasiljević ZŽ, Luković MD, Labus N. Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material. in IEEE Sensors Journal. 2020;20(14):7509-7516.
doi:10.1109/JSEN.2020.2983135
https://hdl.handle.net/21.15107/rcub_dais_7450 .
Nikolić, Maria Vesna, Dojčinović, Milena, Vasiljević, Zorka Ž., Luković, Miloljub D., Labus, Nebojša, "Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material" in IEEE Sensors Journal, 20, no. 14 (2020):7509-7516,
https://doi.org/10.1109/JSEN.2020.2983135 .,
https://hdl.handle.net/21.15107/rcub_dais_7450 .
6
4
5

Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material

Nikolić, Maria Vesna; Dojčinović, Milena; Vasiljević, Zorka Ž.; Luković, Miloljub D.; Labus, Nebojša

(IEEE, 2020)

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Dojčinović, Milena
AU  - Vasiljević, Zorka Ž.
AU  - Luković, Miloljub D.
AU  - Labus, Nebojša
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/8942
AB  - Nanocomposite Zn2SnO4/SnO2 powder wasobtained by solid state synthesis from homogenizedstarting nanopowders of ZnO and SnO2, mixed in the 1:1molar ratio, structurally and morphologically characterizedusing X-ray diffraction (XRD) and Scanning ElectronMicroscopy (SEM). Thick film paste was made by addingorganic vehicles to the obtained powder. Three to fivelayers (layer thickness approx. 12 µm) were screen printedon alumina substrate with small test PdAg electrodes andfired at 600oC for 30 minutes. SEM analysis confirmed formation of a porous structure suitable for humidity sensing.Impedance response was studied at the working temperatures of 25 and 50oC in a humidity chamber where therelative humidity (RH) was 30-90% and measured frequency 42 Hz – 1 MHz. With increase in film thickness the overallsensor impedance increased. It reduced at 100 Hz from 36 to 0.25 MΩ (60 µm), from 23.4 to 0.25 MΩ (48 µm) and from6.8 to 0.02 MΩ (36 µm) at 25 oC, while at 50 oC and also 100 Hz it reduced from 14 MΩ to 0.72 MΩ (48 µm) for RH 30 and90%, respectively. The response (8 s) and recovery (10 s) was fast, showing that this nanocomposite has potential forapplication in humidity sensing.
PB  - IEEE
T2  - IEEE Sensors Journal
T1  - Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material
SP  - 7509
EP  - 7516
VL  - 20
IS  - 14
DO  - 10.1109/JSEN.2020.2983135
UR  - https://hdl.handle.net/21.15107/rcub_dais_8942
ER  - 
@article{
author = "Nikolić, Maria Vesna and Dojčinović, Milena and Vasiljević, Zorka Ž. and Luković, Miloljub D. and Labus, Nebojša",
year = "2020",
abstract = "Nanocomposite Zn2SnO4/SnO2 powder wasobtained by solid state synthesis from homogenizedstarting nanopowders of ZnO and SnO2, mixed in the 1:1molar ratio, structurally and morphologically characterizedusing X-ray diffraction (XRD) and Scanning ElectronMicroscopy (SEM). Thick film paste was made by addingorganic vehicles to the obtained powder. Three to fivelayers (layer thickness approx. 12 µm) were screen printedon alumina substrate with small test PdAg electrodes andfired at 600oC for 30 minutes. SEM analysis confirmed formation of a porous structure suitable for humidity sensing.Impedance response was studied at the working temperatures of 25 and 50oC in a humidity chamber where therelative humidity (RH) was 30-90% and measured frequency 42 Hz – 1 MHz. With increase in film thickness the overallsensor impedance increased. It reduced at 100 Hz from 36 to 0.25 MΩ (60 µm), from 23.4 to 0.25 MΩ (48 µm) and from6.8 to 0.02 MΩ (36 µm) at 25 oC, while at 50 oC and also 100 Hz it reduced from 14 MΩ to 0.72 MΩ (48 µm) for RH 30 and90%, respectively. The response (8 s) and recovery (10 s) was fast, showing that this nanocomposite has potential forapplication in humidity sensing.",
publisher = "IEEE",
journal = "IEEE Sensors Journal",
title = "Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material",
pages = "7509-7516",
volume = "20",
number = "14",
doi = "10.1109/JSEN.2020.2983135",
url = "https://hdl.handle.net/21.15107/rcub_dais_8942"
}
Nikolić, M. V., Dojčinović, M., Vasiljević, Z. Ž., Luković, M. D.,& Labus, N.. (2020). Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material. in IEEE Sensors Journal
IEEE., 20(14), 7509-7516.
https://doi.org/10.1109/JSEN.2020.2983135
https://hdl.handle.net/21.15107/rcub_dais_8942
Nikolić MV, Dojčinović M, Vasiljević ZŽ, Luković MD, Labus N. Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material. in IEEE Sensors Journal. 2020;20(14):7509-7516.
doi:10.1109/JSEN.2020.2983135
https://hdl.handle.net/21.15107/rcub_dais_8942 .
Nikolić, Maria Vesna, Dojčinović, Milena, Vasiljević, Zorka Ž., Luković, Miloljub D., Labus, Nebojša, "Nanocomposite Zn2SnO4/SnO2 Thick Films as a Humidity Sensing Material" in IEEE Sensors Journal, 20, no. 14 (2020):7509-7516,
https://doi.org/10.1109/JSEN.2020.2983135 .,
https://hdl.handle.net/21.15107/rcub_dais_8942 .
6
4
5

Sinteza, struktura, karakterizacija i fotoelektrohemijska primena debelih slojeva pseudobrukita, Fe2TiO5

Vasiljević, Zorka Ž.

(Универзитет у Београду, Технолошко-металуршки факултет, 2019)

TY  - THES
AU  - Vasiljević, Zorka Ž.
PY  - 2019
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=7301
UR  - http://nardus.mpn.gov.rs/handle/123456789/12112
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:21082/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=51887375
UR  - https://dais.sanu.ac.rs/123456789/9153
AB  - U poređenju sa fotonaponskim ćelijama, fotoelektrohemijske ćelije predstavljajuefikasan vid pretvaranja sunčeve energije u električnu, jer se pored energije dobija ivodonik koji se može iskoristiti kao gorivo. Fotoelektrohemijske ćelije sastoje se odpoluprovodničke anode (p- ili n-tipa) koja apsorbuje svetlost, pri čemu se konverzijaenergije odigrava na granici faza poluprovodnik-elektrolit.U ovoj doktorskoj disertaciji primenjena su tri istraživačka pravca za dobijanjefilmova u svojstvu fotoaktivnih anoda. Prvi istraživački pravac bio je pripremananočestičnog poluprovodnika - pseudobrukita, Fe2TiO5, reakcijom u čvrstom stanjuizmeđu anatasa, TiO2 i hematita, α-Fe2O3. Analiza dobijanja najpre je praćena natabletama radi optimizacije sastava, temperature i vremena sinterovanja. Ispitan je uticajpromene temperature sinterovanja (750 – 1250 C) na fazni sastav, temperaturu faznogprelaza, morfologiju, kao i električna svojstva sinterovanih uzoraka. Izabrane su dveoksidne smeše  maseni odnos prahova 40%α-Fe2O3/60%TiO2 (4F6T) i60%α-Fe2O3/40%TiO2 (6F4T) što približno odgovara molskom odnosu početnihprahova hematita i anatasa od 1:3 i 1,5:2, sa ciljem da se dobije pseudobrukit i analizirauticaj viška anatasa. Uzorci sinterovani na temperaturi 850 C sadržali su rutil ipseudobrukit sa rombičnom strukturom čime je potvrđeno da gvožđe ubrzava faznutransformaciju anatasa u rutil pri čemu se formira i pseudobrukitna faza. Dalje povišenjetemperature uticalo je na povećanje gustine uzoraka, promene u veličini zrna ismanjenje električne otpornosti.Drugi istraživački pravac bio je priprema elektrodnih filmova sitoštampanjempasti koje su dobijene mešanjem homogenizovanih prahova sa organskom smolom(butil celuloza), rastvaračem (terpinol) i malom količinom veziva – ROSiO2B2O3staklo (RO-oksid retkih zemalja). Dobijene paste deponovane su sitoštampom nasupstrat od alumine i potom sinterovane u hibridnoj peći 60 minuta u temperaturnomopsegu 800 – 950 C. Rendgenskom difrakcionom analizom utvrđeno je da se na800 C formira monoklinični pseudobrukit i da je završena fazna transformacija anatasau rutil, kao i da je dalje povišenje temperature utiče na prelaz monokliničnog u rombičnipseudobrukit. Uzorci sinterovani na 850 C imali su malu veličinu zrna sa homogenomstrukturom, dok je dalje povišenje temperature uticalo na formiranje pseudobrukita savećim zrnima štapićastog oblika. Strujno-naponska analiza pokazala je da uzorak60%α-Fe2O3/40%TiO2 sinterovan na 850 C ima mogućnost za primenu ufotoelektrohemijskim ćelijama...
AB  - Compared to photovoltaic cells, photoelectrochemical cells represent an efficientway of converting solar into electrical energy, because besides energy, hydrogen is alsoavailable that could be used as a fuel. A photoelectrochemical cell consists of asemiconductor anode (p- or n-type) that absorbs light, whereby energy conversion takesplace at the boundary of the semiconductor-electrolyte phase.This doctoral dissertation is divided into three main research directions, relatedto the preparation of films in the form of photoactive anodes. The first one describespreparation of the nanoparticle semiconductor - pseudobrookite, Fe2TiO5, by a solidstate reaction between anatase, TiO2, and hematite, α-Fe2O3. Pseudobrookite formationwas first monitored on tablets to optimize the composition, temperature and time ofsintering. The influence of the sintering temperature (750 –1250C) on the phasecomposition, phase transition temperature, morphology and electrical properties of bulksintered powder mixtures composed of starting anatase and hematite nanopowders wasinvestigated. Two oxide mixtures were first selected - nanopowders of -Fe2O3(hematite) and TiO2 (anatase 99.7%) were mixed in the weight ratios 40:60 and 60:40,respectively which approximately corresponds to the molar ratios of starting hematiteand anatase powders of 1:3 and 1.5:2, with the aim of obtaining pseudobrookite andanalyzing the effect of excess anatase. Samples sintered at 850 °C contained rutile andpseudobrookite with an orthorhombic structure, which confirmed that iron acceleratesthe phase transformation of anatase to rutile, thereby forming a pseudobrookite phase.Higher sintering temperatures lead to increased sample density, changes in grain sizeand decreased electric resistivity.The second research direction was the preparation of films starting fromprepared oxide mixtures with an organic vehicle (butyl cellulose), solvent (terpinol) anda small amount of binding lead boron silicone oxide glass frit (ROSiO2B2O3). Pasteswere deposited onto alumina substrate using the screen printing technique and thensintered 60 minutes at 800  950 C. X-ray diffraction analysis determined formation ofmonoclinic pseudobrookite at 800 C and completion of the phase transformation ofanatase into rutile. Further increase in temperature leads to the transition of monoclinicpseudobrookite into orthorhombic pseudobrookite. Samples sintered at 850 C still hada small grain size, with a relatively homogenous distribution, while further increase intemperature lead to the formation of larger rod-shaped grains. Analysis of currentvoltage measurements of thick film samples sintered at 850 C showed that the60%α-Fe2O3/40%TiO2 sample had potential for application as a photoanode for lightdriven water splitting...
PB  - Универзитет у Београду, Технолошко-металуршки факултет
T2  - Универзитет у Београду
T1  - Sinteza, struktura, karakterizacija i fotoelektrohemijska primena debelih slojeva pseudobrukita, Fe2TiO5
UR  - https://hdl.handle.net/21.15107/rcub_dais_9153
ER  - 
@phdthesis{
author = "Vasiljević, Zorka Ž.",
year = "2019",
abstract = "U poređenju sa fotonaponskim ćelijama, fotoelektrohemijske ćelije predstavljajuefikasan vid pretvaranja sunčeve energije u električnu, jer se pored energije dobija ivodonik koji se može iskoristiti kao gorivo. Fotoelektrohemijske ćelije sastoje se odpoluprovodničke anode (p- ili n-tipa) koja apsorbuje svetlost, pri čemu se konverzijaenergije odigrava na granici faza poluprovodnik-elektrolit.U ovoj doktorskoj disertaciji primenjena su tri istraživačka pravca za dobijanjefilmova u svojstvu fotoaktivnih anoda. Prvi istraživački pravac bio je pripremananočestičnog poluprovodnika - pseudobrukita, Fe2TiO5, reakcijom u čvrstom stanjuizmeđu anatasa, TiO2 i hematita, α-Fe2O3. Analiza dobijanja najpre je praćena natabletama radi optimizacije sastava, temperature i vremena sinterovanja. Ispitan je uticajpromene temperature sinterovanja (750 – 1250 C) na fazni sastav, temperaturu faznogprelaza, morfologiju, kao i električna svojstva sinterovanih uzoraka. Izabrane su dveoksidne smeše  maseni odnos prahova 40%α-Fe2O3/60%TiO2 (4F6T) i60%α-Fe2O3/40%TiO2 (6F4T) što približno odgovara molskom odnosu početnihprahova hematita i anatasa od 1:3 i 1,5:2, sa ciljem da se dobije pseudobrukit i analizirauticaj viška anatasa. Uzorci sinterovani na temperaturi 850 C sadržali su rutil ipseudobrukit sa rombičnom strukturom čime je potvrđeno da gvožđe ubrzava faznutransformaciju anatasa u rutil pri čemu se formira i pseudobrukitna faza. Dalje povišenjetemperature uticalo je na povećanje gustine uzoraka, promene u veličini zrna ismanjenje električne otpornosti.Drugi istraživački pravac bio je priprema elektrodnih filmova sitoštampanjempasti koje su dobijene mešanjem homogenizovanih prahova sa organskom smolom(butil celuloza), rastvaračem (terpinol) i malom količinom veziva – ROSiO2B2O3staklo (RO-oksid retkih zemalja). Dobijene paste deponovane su sitoštampom nasupstrat od alumine i potom sinterovane u hibridnoj peći 60 minuta u temperaturnomopsegu 800 – 950 C. Rendgenskom difrakcionom analizom utvrđeno je da se na800 C formira monoklinični pseudobrukit i da je završena fazna transformacija anatasau rutil, kao i da je dalje povišenje temperature utiče na prelaz monokliničnog u rombičnipseudobrukit. Uzorci sinterovani na 850 C imali su malu veličinu zrna sa homogenomstrukturom, dok je dalje povišenje temperature uticalo na formiranje pseudobrukita savećim zrnima štapićastog oblika. Strujno-naponska analiza pokazala je da uzorak60%α-Fe2O3/40%TiO2 sinterovan na 850 C ima mogućnost za primenu ufotoelektrohemijskim ćelijama..., Compared to photovoltaic cells, photoelectrochemical cells represent an efficientway of converting solar into electrical energy, because besides energy, hydrogen is alsoavailable that could be used as a fuel. A photoelectrochemical cell consists of asemiconductor anode (p- or n-type) that absorbs light, whereby energy conversion takesplace at the boundary of the semiconductor-electrolyte phase.This doctoral dissertation is divided into three main research directions, relatedto the preparation of films in the form of photoactive anodes. The first one describespreparation of the nanoparticle semiconductor - pseudobrookite, Fe2TiO5, by a solidstate reaction between anatase, TiO2, and hematite, α-Fe2O3. Pseudobrookite formationwas first monitored on tablets to optimize the composition, temperature and time ofsintering. The influence of the sintering temperature (750 –1250C) on the phasecomposition, phase transition temperature, morphology and electrical properties of bulksintered powder mixtures composed of starting anatase and hematite nanopowders wasinvestigated. Two oxide mixtures were first selected - nanopowders of -Fe2O3(hematite) and TiO2 (anatase 99.7%) were mixed in the weight ratios 40:60 and 60:40,respectively which approximately corresponds to the molar ratios of starting hematiteand anatase powders of 1:3 and 1.5:2, with the aim of obtaining pseudobrookite andanalyzing the effect of excess anatase. Samples sintered at 850 °C contained rutile andpseudobrookite with an orthorhombic structure, which confirmed that iron acceleratesthe phase transformation of anatase to rutile, thereby forming a pseudobrookite phase.Higher sintering temperatures lead to increased sample density, changes in grain sizeand decreased electric resistivity.The second research direction was the preparation of films starting fromprepared oxide mixtures with an organic vehicle (butyl cellulose), solvent (terpinol) anda small amount of binding lead boron silicone oxide glass frit (ROSiO2B2O3). Pasteswere deposited onto alumina substrate using the screen printing technique and thensintered 60 minutes at 800  950 C. X-ray diffraction analysis determined formation ofmonoclinic pseudobrookite at 800 C and completion of the phase transformation ofanatase into rutile. Further increase in temperature leads to the transition of monoclinicpseudobrookite into orthorhombic pseudobrookite. Samples sintered at 850 C still hada small grain size, with a relatively homogenous distribution, while further increase intemperature lead to the formation of larger rod-shaped grains. Analysis of currentvoltage measurements of thick film samples sintered at 850 C showed that the60%α-Fe2O3/40%TiO2 sample had potential for application as a photoanode for lightdriven water splitting...",
publisher = "Универзитет у Београду, Технолошко-металуршки факултет",
journal = "Универзитет у Београду",
title = "Sinteza, struktura, karakterizacija i fotoelektrohemijska primena debelih slojeva pseudobrukita, Fe2TiO5",
url = "https://hdl.handle.net/21.15107/rcub_dais_9153"
}
Vasiljević, Z. Ž.. (2019). Sinteza, struktura, karakterizacija i fotoelektrohemijska primena debelih slojeva pseudobrukita, Fe2TiO5. in Универзитет у Београду
Универзитет у Београду, Технолошко-металуршки факултет..
https://hdl.handle.net/21.15107/rcub_dais_9153
Vasiljević ZŽ. Sinteza, struktura, karakterizacija i fotoelektrohemijska primena debelih slojeva pseudobrukita, Fe2TiO5. in Универзитет у Београду. 2019;.
https://hdl.handle.net/21.15107/rcub_dais_9153 .
Vasiljević, Zorka Ž., "Sinteza, struktura, karakterizacija i fotoelektrohemijska primena debelih slojeva pseudobrukita, Fe2TiO5" in Универзитет у Београду (2019),
https://hdl.handle.net/21.15107/rcub_dais_9153 .

Investigation of ZnFe2O4 spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing

Nikolić, Maria Vesna; Vasiljević, Zorka Ž.; Luković, Miloljub D.; Pavlović, Vera P.; Krstić, Jugoslav B.; Vujančević, Jelena; Tadić, Nenad B.; Vlahović, Branislav; Pavlović, Vladimir B.

(John Wiley & Sons, Inc., 2019)

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Vasiljević, Zorka Ž.
AU  - Luković, Miloljub D.
AU  - Pavlović, Vera P.
AU  - Krstić, Jugoslav B.
AU  - Vujančević, Jelena
AU  - Tadić, Nenad B.
AU  - Vlahović, Branislav
AU  - Pavlović, Vladimir B.
PY  - 2019
UR  - https://ceramics.onlinelibrary.wiley.com/doi/abs/10.1111/ijac.13190
UR  - https://dais.sanu.ac.rs/123456789/5766
AB  - Zinc ferrite nanocrystalline powder was obtained by solid state synthesis of starting zinc oxide and hematite nanopowders. Field emission scanning electron microscopy (FESEM and transmission electron microscopy (TEM), X‐ray diffraction (XRD), X‐ray photoelectron spectroscopy (XPS) and Raman spectroscopy confirmed the formation of nanocrystalline zinc‐ferrite powder with a mixed spinel structure with small amounts of remaining zinc oxide and hematite as impurities. Thick film paste was formed and screen printed on test interdigitated PdAg electrodes on alumina substrate. Formation of a porous nanocrystalline structure was confirmed by scanning electron microscopy (SEM) and Hg porosimetry. Humidity sensing properties of zinc ferrite thick films were investigated by monitoring the change in impedance in the relative humidity interval 30‐90% in the frequency range 42 Hz – 1 MHz at room temperature (25 °C) and 50 °C. At 42 Hz at both analyzed temperatures the impedance reduced ~ 46 times in the humidity range 30‐90%. The dominant influence of grain boundaries was confirmed by analysis of complex impedance with an equivalent circuit.
PB  - John Wiley & Sons, Inc.
T2  - International Journal of Applied Ceramic Technology
T1  - Investigation of ZnFe2O4 spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing
SP  - 981
EP  - 993
VL  - 16
IS  - 3
DO  - 10.1111/ijac.13190
UR  - https://hdl.handle.net/21.15107/rcub_dais_5766
ER  - 
@article{
author = "Nikolić, Maria Vesna and Vasiljević, Zorka Ž. and Luković, Miloljub D. and Pavlović, Vera P. and Krstić, Jugoslav B. and Vujančević, Jelena and Tadić, Nenad B. and Vlahović, Branislav and Pavlović, Vladimir B.",
year = "2019",
abstract = "Zinc ferrite nanocrystalline powder was obtained by solid state synthesis of starting zinc oxide and hematite nanopowders. Field emission scanning electron microscopy (FESEM and transmission electron microscopy (TEM), X‐ray diffraction (XRD), X‐ray photoelectron spectroscopy (XPS) and Raman spectroscopy confirmed the formation of nanocrystalline zinc‐ferrite powder with a mixed spinel structure with small amounts of remaining zinc oxide and hematite as impurities. Thick film paste was formed and screen printed on test interdigitated PdAg electrodes on alumina substrate. Formation of a porous nanocrystalline structure was confirmed by scanning electron microscopy (SEM) and Hg porosimetry. Humidity sensing properties of zinc ferrite thick films were investigated by monitoring the change in impedance in the relative humidity interval 30‐90% in the frequency range 42 Hz – 1 MHz at room temperature (25 °C) and 50 °C. At 42 Hz at both analyzed temperatures the impedance reduced ~ 46 times in the humidity range 30‐90%. The dominant influence of grain boundaries was confirmed by analysis of complex impedance with an equivalent circuit.",
publisher = "John Wiley & Sons, Inc.",
journal = "International Journal of Applied Ceramic Technology",
title = "Investigation of ZnFe2O4 spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing",
pages = "981-993",
volume = "16",
number = "3",
doi = "10.1111/ijac.13190",
url = "https://hdl.handle.net/21.15107/rcub_dais_5766"
}
Nikolić, M. V., Vasiljević, Z. Ž., Luković, M. D., Pavlović, V. P., Krstić, J. B., Vujančević, J., Tadić, N. B., Vlahović, B.,& Pavlović, V. B.. (2019). Investigation of ZnFe2O4 spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing. in International Journal of Applied Ceramic Technology
John Wiley & Sons, Inc.., 16(3), 981-993.
https://doi.org/10.1111/ijac.13190
https://hdl.handle.net/21.15107/rcub_dais_5766
Nikolić MV, Vasiljević ZŽ, Luković MD, Pavlović VP, Krstić JB, Vujančević J, Tadić NB, Vlahović B, Pavlović VB. Investigation of ZnFe2O4 spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing. in International Journal of Applied Ceramic Technology. 2019;16(3):981-993.
doi:10.1111/ijac.13190
https://hdl.handle.net/21.15107/rcub_dais_5766 .
Nikolić, Maria Vesna, Vasiljević, Zorka Ž., Luković, Miloljub D., Pavlović, Vera P., Krstić, Jugoslav B., Vujančević, Jelena, Tadić, Nenad B., Vlahović, Branislav, Pavlović, Vladimir B., "Investigation of ZnFe2O4 spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing" in International Journal of Applied Ceramic Technology, 16, no. 3 (2019):981-993,
https://doi.org/10.1111/ijac.13190 .,
https://hdl.handle.net/21.15107/rcub_dais_5766 .
15
12
13

Investigation of ZnFe2O4 spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing

Nikolić, Maria Vesna; Vasiljević, Zorka Ž.; Luković, Miloljub D.; Pavlović, Vera P.; Krstić, Jugoslav B.; Vujančević, Jelena; Tadić, Nenad B.; Vlahović, Branislav; Pavlović, Vladimir B.

(John Wiley & Sons, Inc., 2019)

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Vasiljević, Zorka Ž.
AU  - Luković, Miloljub D.
AU  - Pavlović, Vera P.
AU  - Krstić, Jugoslav B.
AU  - Vujančević, Jelena
AU  - Tadić, Nenad B.
AU  - Vlahović, Branislav
AU  - Pavlović, Vladimir B.
PY  - 2019
UR  - https://ceramics.onlinelibrary.wiley.com/doi/abs/10.1111/ijac.13190
UR  - https://dais.sanu.ac.rs/123456789/4848
AB  - Zinc ferrite nanocrystalline powder was obtained by solid state synthesis of starting zinc oxide and hematite nanopowders. Field emission scanning electron microscopy (FESEM and transmission electron microscopy (TEM), X‐ray diffraction (XRD), X‐ray photoelectron spectroscopy (XPS) and Raman spectroscopy confirmed the formation of nanocrystalline zinc‐ferrite powder with a mixed spinel structure with small amounts of remaining zinc oxide and hematite as impurities. Thick film paste was formed and screen printed on test interdigitated PdAg electrodes on alumina substrate. Formation of a porous nanocrystalline structure was confirmed by scanning electron microscopy (SEM) and Hg porosimetry. Humidity sensing properties of zinc ferrite thick films were investigated by monitoring the change in impedance in the relative humidity interval 30‐90% in the frequency range 42 Hz – 1 MHz at room temperature (25 °C) and 50 °C. At 42 Hz at both analyzed temperatures the impedance reduced ~ 46 times in the humidity range 30‐90%. The dominant influence of grain boundaries was confirmed by analysis of complex impedance with an equivalent circuit.
PB  - John Wiley & Sons, Inc.
T2  - International Journal of Applied Ceramic Technology
T1  - Investigation of ZnFe2O4 spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing
SP  - 981
EP  - 993
VL  - 16
IS  - 3
DO  - 10.1111/ijac.13190
UR  - https://hdl.handle.net/21.15107/rcub_dais_4848
ER  - 
@article{
author = "Nikolić, Maria Vesna and Vasiljević, Zorka Ž. and Luković, Miloljub D. and Pavlović, Vera P. and Krstić, Jugoslav B. and Vujančević, Jelena and Tadić, Nenad B. and Vlahović, Branislav and Pavlović, Vladimir B.",
year = "2019",
abstract = "Zinc ferrite nanocrystalline powder was obtained by solid state synthesis of starting zinc oxide and hematite nanopowders. Field emission scanning electron microscopy (FESEM and transmission electron microscopy (TEM), X‐ray diffraction (XRD), X‐ray photoelectron spectroscopy (XPS) and Raman spectroscopy confirmed the formation of nanocrystalline zinc‐ferrite powder with a mixed spinel structure with small amounts of remaining zinc oxide and hematite as impurities. Thick film paste was formed and screen printed on test interdigitated PdAg electrodes on alumina substrate. Formation of a porous nanocrystalline structure was confirmed by scanning electron microscopy (SEM) and Hg porosimetry. Humidity sensing properties of zinc ferrite thick films were investigated by monitoring the change in impedance in the relative humidity interval 30‐90% in the frequency range 42 Hz – 1 MHz at room temperature (25 °C) and 50 °C. At 42 Hz at both analyzed temperatures the impedance reduced ~ 46 times in the humidity range 30‐90%. The dominant influence of grain boundaries was confirmed by analysis of complex impedance with an equivalent circuit.",
publisher = "John Wiley & Sons, Inc.",
journal = "International Journal of Applied Ceramic Technology",
title = "Investigation of ZnFe2O4 spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing",
pages = "981-993",
volume = "16",
number = "3",
doi = "10.1111/ijac.13190",
url = "https://hdl.handle.net/21.15107/rcub_dais_4848"
}
Nikolić, M. V., Vasiljević, Z. Ž., Luković, M. D., Pavlović, V. P., Krstić, J. B., Vujančević, J., Tadić, N. B., Vlahović, B.,& Pavlović, V. B.. (2019). Investigation of ZnFe2O4 spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing. in International Journal of Applied Ceramic Technology
John Wiley & Sons, Inc.., 16(3), 981-993.
https://doi.org/10.1111/ijac.13190
https://hdl.handle.net/21.15107/rcub_dais_4848
Nikolić MV, Vasiljević ZŽ, Luković MD, Pavlović VP, Krstić JB, Vujančević J, Tadić NB, Vlahović B, Pavlović VB. Investigation of ZnFe2O4 spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing. in International Journal of Applied Ceramic Technology. 2019;16(3):981-993.
doi:10.1111/ijac.13190
https://hdl.handle.net/21.15107/rcub_dais_4848 .
Nikolić, Maria Vesna, Vasiljević, Zorka Ž., Luković, Miloljub D., Pavlović, Vera P., Krstić, Jugoslav B., Vujančević, Jelena, Tadić, Nenad B., Vlahović, Branislav, Pavlović, Vladimir B., "Investigation of ZnFe2O4 spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing" in International Journal of Applied Ceramic Technology, 16, no. 3 (2019):981-993,
https://doi.org/10.1111/ijac.13190 .,
https://hdl.handle.net/21.15107/rcub_dais_4848 .
13
12
13

Nanocrystalline iron-manganite (FeMnO3) applied for humidity sensing

Vasiljević, Zorka Ž.; Dojčinović, Milena; Vujančević, Jelena; Tadić, Nenad B.; Nikolić, Maria Vesna

(Belgrade : Institute for Multidisciplinary Research, 2019)

TY  - CONF
AU  - Vasiljević, Zorka Ž.
AU  - Dojčinović, Milena
AU  - Vujančević, Jelena
AU  - Tadić, Nenad B.
AU  - Nikolić, Maria Vesna
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/7005
AB  - Nanocrystalline iron manganite was synthesized using a sol-gel self-combustion method with glycine as fuel, followed by calcination at 900 °C for 8 hours. Structural characterization was performed using X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM). It confirmed the formation of nanocrystalline iron-manganite with a perovskite structure. Humidity sensing properties of bulk and thick film samples of the obtained nanocrystalline iron manganite powder were analyzed. Organic vehicles were added to the powder to form a thick film paste that was screen printed on alumina substrate with test PdAg interdigitated electrodes. Impedance response of bulk and thick film samples was analyzed in a humidity chamber in the relative humidity range 30-90% in the frequency range 42 Hz to 1 MHz in view of applying iron-manganite for humidity sensing applications.
PB  - Belgrade : Institute for Multidisciplinary Research
C3  - Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia
T1  - Nanocrystalline iron-manganite (FeMnO3) applied for humidity sensing
SP  - 94
EP  - 94
UR  - https://hdl.handle.net/21.15107/rcub_dais_7005
ER  - 
@conference{
author = "Vasiljević, Zorka Ž. and Dojčinović, Milena and Vujančević, Jelena and Tadić, Nenad B. and Nikolić, Maria Vesna",
year = "2019",
abstract = "Nanocrystalline iron manganite was synthesized using a sol-gel self-combustion method with glycine as fuel, followed by calcination at 900 °C for 8 hours. Structural characterization was performed using X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM). It confirmed the formation of nanocrystalline iron-manganite with a perovskite structure. Humidity sensing properties of bulk and thick film samples of the obtained nanocrystalline iron manganite powder were analyzed. Organic vehicles were added to the powder to form a thick film paste that was screen printed on alumina substrate with test PdAg interdigitated electrodes. Impedance response of bulk and thick film samples was analyzed in a humidity chamber in the relative humidity range 30-90% in the frequency range 42 Hz to 1 MHz in view of applying iron-manganite for humidity sensing applications.",
publisher = "Belgrade : Institute for Multidisciplinary Research",
journal = "Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia",
title = "Nanocrystalline iron-manganite (FeMnO3) applied for humidity sensing",
pages = "94-94",
url = "https://hdl.handle.net/21.15107/rcub_dais_7005"
}
Vasiljević, Z. Ž., Dojčinović, M., Vujančević, J., Tadić, N. B.,& Nikolić, M. V.. (2019). Nanocrystalline iron-manganite (FeMnO3) applied for humidity sensing. in Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia
Belgrade : Institute for Multidisciplinary Research., 94-94.
https://hdl.handle.net/21.15107/rcub_dais_7005
Vasiljević ZŽ, Dojčinović M, Vujančević J, Tadić NB, Nikolić MV. Nanocrystalline iron-manganite (FeMnO3) applied for humidity sensing. in Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia. 2019;:94-94.
https://hdl.handle.net/21.15107/rcub_dais_7005 .
Vasiljević, Zorka Ž., Dojčinović, Milena, Vujančević, Jelena, Tadić, Nenad B., Nikolić, Maria Vesna, "Nanocrystalline iron-manganite (FeMnO3) applied for humidity sensing" in Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia (2019):94-94,
https://hdl.handle.net/21.15107/rcub_dais_7005 .

Influence of Co2+ ions on photocatalytic properties of MgFe2O4 ferrites

Vasiljević, Zorka Ž.; Dojčinović, Milena; Pavlović, Vera P.; Vujančević, Jelena; Marković, Smilja; Tadić, Nenad B.; Nikolić, Maria Vesna

(Belgrade : Institute for Multidisciplinary Research, 2019)

TY  - CONF
AU  - Vasiljević, Zorka Ž.
AU  - Dojčinović, Milena
AU  - Pavlović, Vera P.
AU  - Vujančević, Jelena
AU  - Marković, Smilja
AU  - Tadić, Nenad B.
AU  - Nikolić, Maria Vesna
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/7003
AB  - In this work, spinel magnesium cobalt ferrites (CoxMg1-xFe2O4, x = 0.0, 0.1, 0.3, 0.5, 0.7, 0.9) were synthesized by a sol-gel combustion method. Magnesium nitrate, cobalt nitrate and iron nitrate were used as oxidizers and citric acid was used as a reducing agent. The effects of cobalt ions on structural and morphological properties were investigated and characterized by X-ray diffraction (XRD), Raman spectroscopy, Field emission scanning electron microscope (FESEM) and Fourier transform infrared (FT-IR) spectroscopy. A cubic spinel structure formed with a varied distribution of cobalt and magnesium ions on tetrahedral and octahedral sites that depended on their content. All ferrite powders consisted of multigrain agglomerates. Optical properties were investigated by UV- vis spectrophotometry. The photocatalytic activity of as prepared samples was evaluated by measuring the rate of photodegradation reaction of methylene blue (MB) under visible light irradiation. After 240 min, compared to other samples, the sample labeled as Co0.1Mg0.9Fe2O4 showed the best rate of photodecomposition of MB resulting in reduction of 90% of its initial concentration.
PB  - Belgrade : Institute for Multidisciplinary Research
C3  - Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia
T1  - Influence of Co2+ ions on photocatalytic properties of MgFe2O4 ferrites
SP  - 73
EP  - 73
UR  - https://hdl.handle.net/21.15107/rcub_dais_7003
ER  - 
@conference{
author = "Vasiljević, Zorka Ž. and Dojčinović, Milena and Pavlović, Vera P. and Vujančević, Jelena and Marković, Smilja and Tadić, Nenad B. and Nikolić, Maria Vesna",
year = "2019",
abstract = "In this work, spinel magnesium cobalt ferrites (CoxMg1-xFe2O4, x = 0.0, 0.1, 0.3, 0.5, 0.7, 0.9) were synthesized by a sol-gel combustion method. Magnesium nitrate, cobalt nitrate and iron nitrate were used as oxidizers and citric acid was used as a reducing agent. The effects of cobalt ions on structural and morphological properties were investigated and characterized by X-ray diffraction (XRD), Raman spectroscopy, Field emission scanning electron microscope (FESEM) and Fourier transform infrared (FT-IR) spectroscopy. A cubic spinel structure formed with a varied distribution of cobalt and magnesium ions on tetrahedral and octahedral sites that depended on their content. All ferrite powders consisted of multigrain agglomerates. Optical properties were investigated by UV- vis spectrophotometry. The photocatalytic activity of as prepared samples was evaluated by measuring the rate of photodegradation reaction of methylene blue (MB) under visible light irradiation. After 240 min, compared to other samples, the sample labeled as Co0.1Mg0.9Fe2O4 showed the best rate of photodecomposition of MB resulting in reduction of 90% of its initial concentration.",
publisher = "Belgrade : Institute for Multidisciplinary Research",
journal = "Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia",
title = "Influence of Co2+ ions on photocatalytic properties of MgFe2O4 ferrites",
pages = "73-73",
url = "https://hdl.handle.net/21.15107/rcub_dais_7003"
}
Vasiljević, Z. Ž., Dojčinović, M., Pavlović, V. P., Vujančević, J., Marković, S., Tadić, N. B.,& Nikolić, M. V.. (2019). Influence of Co2+ ions on photocatalytic properties of MgFe2O4 ferrites. in Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia
Belgrade : Institute for Multidisciplinary Research., 73-73.
https://hdl.handle.net/21.15107/rcub_dais_7003
Vasiljević ZŽ, Dojčinović M, Pavlović VP, Vujančević J, Marković S, Tadić NB, Nikolić MV. Influence of Co2+ ions on photocatalytic properties of MgFe2O4 ferrites. in Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia. 2019;:73-73.
https://hdl.handle.net/21.15107/rcub_dais_7003 .
Vasiljević, Zorka Ž., Dojčinović, Milena, Pavlović, Vera P., Vujančević, Jelena, Marković, Smilja, Tadić, Nenad B., Nikolić, Maria Vesna, "Influence of Co2+ ions on photocatalytic properties of MgFe2O4 ferrites" in Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia (2019):73-73,
https://hdl.handle.net/21.15107/rcub_dais_7003 .

Structure and photocatalytic properties of sol-gel synthesized pseudobrookite

Vasiljević, Zorka Ž.; Dojčinović, Milena; Janković Častvan, Ivona; Vujančević, Jelena; Tadić, Nenad B.; Nikolić, Maria Vesna

(Novi Sad : Faculty of Technology, 2019)

TY  - CONF
AU  - Vasiljević, Zorka Ž.
AU  - Dojčinović, Milena
AU  - Janković Častvan, Ivona
AU  - Vujančević, Jelena
AU  - Tadić, Nenad B.
AU  - Nikolić, Maria Vesna
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/6988
AB  - Fe2TiO5 nanopartcles were synthesized by modified sol-gel method with aid of
Fe(NO3)3 9H2O and Ti(OC3H7)4 as starting reagents, oxalic acid as chilate agent and cetyltrimethylammonium bromide as surfactant. The aim of this study was to asses the photocatalytic degradaton of the antibiotic Oxytetracycline (OTC) using visible light irradiation. As prepared nanoparticles were characterized by XRD, BET, FESEM and UV-vis DRS. The optimal operating conditions of oxytetracycline photocatalytic degradation were achived by changing the pH of the solution and changing the concentration of photocatalyst.
PB  - Novi Sad : Faculty of Technology
C3  - Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad
T1  - Structure and photocatalytic properties of sol-gel synthesized pseudobrookite
SP  - 133
EP  - 133
UR  - https://hdl.handle.net/21.15107/rcub_dais_6988
ER  - 
@conference{
author = "Vasiljević, Zorka Ž. and Dojčinović, Milena and Janković Častvan, Ivona and Vujančević, Jelena and Tadić, Nenad B. and Nikolić, Maria Vesna",
year = "2019",
abstract = "Fe2TiO5 nanopartcles were synthesized by modified sol-gel method with aid of
Fe(NO3)3 9H2O and Ti(OC3H7)4 as starting reagents, oxalic acid as chilate agent and cetyltrimethylammonium bromide as surfactant. The aim of this study was to asses the photocatalytic degradaton of the antibiotic Oxytetracycline (OTC) using visible light irradiation. As prepared nanoparticles were characterized by XRD, BET, FESEM and UV-vis DRS. The optimal operating conditions of oxytetracycline photocatalytic degradation were achived by changing the pH of the solution and changing the concentration of photocatalyst.",
publisher = "Novi Sad : Faculty of Technology",
journal = "Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad",
title = "Structure and photocatalytic properties of sol-gel synthesized pseudobrookite",
pages = "133-133",
url = "https://hdl.handle.net/21.15107/rcub_dais_6988"
}
Vasiljević, Z. Ž., Dojčinović, M., Janković Častvan, I., Vujančević, J., Tadić, N. B.,& Nikolić, M. V.. (2019). Structure and photocatalytic properties of sol-gel synthesized pseudobrookite. in Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad
Novi Sad : Faculty of Technology., 133-133.
https://hdl.handle.net/21.15107/rcub_dais_6988
Vasiljević ZŽ, Dojčinović M, Janković Častvan I, Vujančević J, Tadić NB, Nikolić MV. Structure and photocatalytic properties of sol-gel synthesized pseudobrookite. in Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad. 2019;:133-133.
https://hdl.handle.net/21.15107/rcub_dais_6988 .
Vasiljević, Zorka Ž., Dojčinović, Milena, Janković Častvan, Ivona, Vujančević, Jelena, Tadić, Nenad B., Nikolić, Maria Vesna, "Structure and photocatalytic properties of sol-gel synthesized pseudobrookite" in Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad (2019):133-133,
https://hdl.handle.net/21.15107/rcub_dais_6988 .

Visible light photocatalytic activity of nanocrystalline CoxMg1-xFe2O4 (x = 0-1)

Dojčinović, Milena; Vasiljević, Zorka Ž.; Vujančević, Jelena; Pavlović, Vera P.; Marković, Smilja; Tadić, Nenad B.; Nikolić, Marina V.

(Novi Sad : Faculty of Technology, 2019)

TY  - CONF
AU  - Dojčinović, Milena
AU  - Vasiljević, Zorka Ž.
AU  - Vujančević, Jelena
AU  - Pavlović, Vera P.
AU  - Marković, Smilja
AU  - Tadić, Nenad B.
AU  - Nikolić, Marina V.
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/6986
AB  - The sol-gel combustion method was applied for synthesis of spinel magnesium cobalt ferrites CoxMg1-xFe2O4, with varying cobalt and magnesium content, x = 0.0, 0.1, 0.3, 0.5, 0.7, 0.9. Magnesium nitrate, cobalt nitrate and iron nitrate were used as oxidizers and citric acid was used as a reducing agent. Structural and morphological properties of the obtained ferrite powders were investigated and characterized by X-ray diffraction (XRD), Raman spectroscopy, Field emission scanning electron microscope (FESEM) and Fourier transform infrared (FT-IR) spectroscopy. Optical properties were investigated by UV-VIS spectrophotometry. A cubic spinel structure with multigrain agglomerates formed. Visible light photocatalytic activity of the spinel ferrite powder samples was evaluated by measuring the rate of photodegradation reaction of methylene blue (MB). After 240 min Co0.1Mg0.9Fe2O4 showed the best rate of photodecomposition of MB resulting in 90% of its initial concentration in an alkaline environment.
PB  - Novi Sad : Faculty of Technology
C3  - Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad
T1  - Visible light photocatalytic activity of nanocrystalline CoxMg1-xFe2O4 (x = 0-1)
SP  - 136
EP  - 136
UR  - https://hdl.handle.net/21.15107/rcub_dais_6986
ER  - 
@conference{
author = "Dojčinović, Milena and Vasiljević, Zorka Ž. and Vujančević, Jelena and Pavlović, Vera P. and Marković, Smilja and Tadić, Nenad B. and Nikolić, Marina V.",
year = "2019",
abstract = "The sol-gel combustion method was applied for synthesis of spinel magnesium cobalt ferrites CoxMg1-xFe2O4, with varying cobalt and magnesium content, x = 0.0, 0.1, 0.3, 0.5, 0.7, 0.9. Magnesium nitrate, cobalt nitrate and iron nitrate were used as oxidizers and citric acid was used as a reducing agent. Structural and morphological properties of the obtained ferrite powders were investigated and characterized by X-ray diffraction (XRD), Raman spectroscopy, Field emission scanning electron microscope (FESEM) and Fourier transform infrared (FT-IR) spectroscopy. Optical properties were investigated by UV-VIS spectrophotometry. A cubic spinel structure with multigrain agglomerates formed. Visible light photocatalytic activity of the spinel ferrite powder samples was evaluated by measuring the rate of photodegradation reaction of methylene blue (MB). After 240 min Co0.1Mg0.9Fe2O4 showed the best rate of photodecomposition of MB resulting in 90% of its initial concentration in an alkaline environment.",
publisher = "Novi Sad : Faculty of Technology",
journal = "Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad",
title = "Visible light photocatalytic activity of nanocrystalline CoxMg1-xFe2O4 (x = 0-1)",
pages = "136-136",
url = "https://hdl.handle.net/21.15107/rcub_dais_6986"
}
Dojčinović, M., Vasiljević, Z. Ž., Vujančević, J., Pavlović, V. P., Marković, S., Tadić, N. B.,& Nikolić, M. V.. (2019). Visible light photocatalytic activity of nanocrystalline CoxMg1-xFe2O4 (x = 0-1). in Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad
Novi Sad : Faculty of Technology., 136-136.
https://hdl.handle.net/21.15107/rcub_dais_6986
Dojčinović M, Vasiljević ZŽ, Vujančević J, Pavlović VP, Marković S, Tadić NB, Nikolić MV. Visible light photocatalytic activity of nanocrystalline CoxMg1-xFe2O4 (x = 0-1). in Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad. 2019;:136-136.
https://hdl.handle.net/21.15107/rcub_dais_6986 .
Dojčinović, Milena, Vasiljević, Zorka Ž., Vujančević, Jelena, Pavlović, Vera P., Marković, Smilja, Tadić, Nenad B., Nikolić, Marina V., "Visible light photocatalytic activity of nanocrystalline CoxMg1-xFe2O4 (x = 0-1)" in Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad (2019):136-136,
https://hdl.handle.net/21.15107/rcub_dais_6986 .

Photocatalytic degradation of methylene blue and oxytetracycline via sol-gel synthesized pseudobrookite

Vasiljević, Zorka Ž.; Dojčinović, Milena; Janković Častvan, Ivona; Vujančević, Jelena; Tadić, Nenad B.; Nikolić, Maria Vesna

(Belgrade : Institute of Technical Sciences of SASA, 2019)

TY  - CONF
AU  - Vasiljević, Zorka Ž.
AU  - Dojčinović, Milena
AU  - Janković Častvan, Ivona
AU  - Vujančević, Jelena
AU  - Tadić, Nenad B.
AU  - Nikolić, Maria Vesna
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/6967
AB  - Fe2TiO5 nanoparticles were synthesized by modified sol-gel method using Fe(NO3)3×9H2O and Ti(OC3H7)4 as starting reagents, oxalic acid as chilate agent and cetyltrimethylammonium bromide as surfactant. The aim of this study was to asses the photocatalytic degradaton of water pollutants, methylene blue and the antibiotic Oxytetracycline (OTC) using natural sunlight irradiation. As prepared nanoparticles were characterized by XRD, BET, FESEM and UV-vis DRS. The optimal operating conditions of photocatalytic degradation of water pollutants were achived by changing the pH of the solution and changing the concentration of photocatalyst.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of abstracts / Eighteenth Young Researchers' Conference Materials Sciences and Engineering, December 4-6, 2019, Belgrade, Serbia
T1  - Photocatalytic degradation of methylene blue and oxytetracycline via sol-gel synthesized pseudobrookite
SP  - 70
EP  - 70
UR  - https://hdl.handle.net/21.15107/rcub_dais_6967
ER  - 
@conference{
author = "Vasiljević, Zorka Ž. and Dojčinović, Milena and Janković Častvan, Ivona and Vujančević, Jelena and Tadić, Nenad B. and Nikolić, Maria Vesna",
year = "2019",
abstract = "Fe2TiO5 nanoparticles were synthesized by modified sol-gel method using Fe(NO3)3×9H2O and Ti(OC3H7)4 as starting reagents, oxalic acid as chilate agent and cetyltrimethylammonium bromide as surfactant. The aim of this study was to asses the photocatalytic degradaton of water pollutants, methylene blue and the antibiotic Oxytetracycline (OTC) using natural sunlight irradiation. As prepared nanoparticles were characterized by XRD, BET, FESEM and UV-vis DRS. The optimal operating conditions of photocatalytic degradation of water pollutants were achived by changing the pH of the solution and changing the concentration of photocatalyst.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of abstracts / Eighteenth Young Researchers' Conference Materials Sciences and Engineering, December 4-6, 2019, Belgrade, Serbia",
title = "Photocatalytic degradation of methylene blue and oxytetracycline via sol-gel synthesized pseudobrookite",
pages = "70-70",
url = "https://hdl.handle.net/21.15107/rcub_dais_6967"
}
Vasiljević, Z. Ž., Dojčinović, M., Janković Častvan, I., Vujančević, J., Tadić, N. B.,& Nikolić, M. V.. (2019). Photocatalytic degradation of methylene blue and oxytetracycline via sol-gel synthesized pseudobrookite. in Program and the Book of abstracts / Eighteenth Young Researchers' Conference Materials Sciences and Engineering, December 4-6, 2019, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 70-70.
https://hdl.handle.net/21.15107/rcub_dais_6967
Vasiljević ZŽ, Dojčinović M, Janković Častvan I, Vujančević J, Tadić NB, Nikolić MV. Photocatalytic degradation of methylene blue and oxytetracycline via sol-gel synthesized pseudobrookite. in Program and the Book of abstracts / Eighteenth Young Researchers' Conference Materials Sciences and Engineering, December 4-6, 2019, Belgrade, Serbia. 2019;:70-70.
https://hdl.handle.net/21.15107/rcub_dais_6967 .
Vasiljević, Zorka Ž., Dojčinović, Milena, Janković Častvan, Ivona, Vujančević, Jelena, Tadić, Nenad B., Nikolić, Maria Vesna, "Photocatalytic degradation of methylene blue and oxytetracycline via sol-gel synthesized pseudobrookite" in Program and the Book of abstracts / Eighteenth Young Researchers' Conference Materials Sciences and Engineering, December 4-6, 2019, Belgrade, Serbia (2019):70-70,
https://hdl.handle.net/21.15107/rcub_dais_6967 .

Finding optimal conditions and investigating the structure & morphology of cobalt/magnesium ferrite based cubic spinels (CoxMg1-xFe2O4) as photocatalysts

Dojčinović, Milena; Vasiljević, Zorka Ž.; Tadić, Nenad B.; Pavlović, Vera P.; Barišić, Dario; Pajić, Damir; Nikolić, Maria Vesna

(Belgrade : Institute of Technical Sciences of SASA, 2019)

TY  - CONF
AU  - Dojčinović, Milena
AU  - Vasiljević, Zorka Ž.
AU  - Tadić, Nenad B.
AU  - Pavlović, Vera P.
AU  - Barišić, Dario
AU  - Pajić, Damir
AU  - Nikolić, Maria Vesna
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/6963
AB  - Cobalt/magnesium ferrites with various mole percentage ratio of the metals (obtained structures are CoxMg1-xFe2O4 with x being 0, 0.1, 0.3, 0.5, 0.7, 0.9, 1.0) were synthesized by sol-gel combustion synthesis using glycine as fuel, following the rules of propellant chemistry. The powders were then sintered at 700 °C for 3 hours. Obtained powders were characterized by X-Ray diffraction (XRD), scanning electron microscopy (SEM), Raman
spectroscopy, UV/vis diffuse reflectance spectroscopy (DRS). Investigation of the magnetic properties was also conducted by vibrating sample magnetometry (VSM). The obtained powders were proved to be phase-pure cubic spinels which formed agglomerated micrograins. Series of photocatalytic experiments of methylene blue degradation were done.
The influence of different experimental conditions was investigated including variations of: pH values, concentrations of the pollutant, masses of the photocatalyst, different light sources and therefore different light irradiation. Interesting results, including enhancement of the degradation rate with the introduction of cobalt into MgFe2O4 and decrease of the degradation rate with further increase of cobalt content and formation of hard agglomerates, open new possibilities for further investigation of the utilisation of Co/Mg ferrites as photocatalysts.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of abstracts / Eighteenth Young Researchers' Conference Materials Sciences and Engineering, December 4-6, 2019, Belgrade, Serbia
T1  - Finding optimal conditions and investigating the structure & morphology of cobalt/magnesium ferrite based cubic spinels (CoxMg1-xFe2O4) as photocatalysts
SP  - 71
EP  - 71
UR  - https://hdl.handle.net/21.15107/rcub_dais_6963
ER  - 
@conference{
author = "Dojčinović, Milena and Vasiljević, Zorka Ž. and Tadić, Nenad B. and Pavlović, Vera P. and Barišić, Dario and Pajić, Damir and Nikolić, Maria Vesna",
year = "2019",
abstract = "Cobalt/magnesium ferrites with various mole percentage ratio of the metals (obtained structures are CoxMg1-xFe2O4 with x being 0, 0.1, 0.3, 0.5, 0.7, 0.9, 1.0) were synthesized by sol-gel combustion synthesis using glycine as fuel, following the rules of propellant chemistry. The powders were then sintered at 700 °C for 3 hours. Obtained powders were characterized by X-Ray diffraction (XRD), scanning electron microscopy (SEM), Raman
spectroscopy, UV/vis diffuse reflectance spectroscopy (DRS). Investigation of the magnetic properties was also conducted by vibrating sample magnetometry (VSM). The obtained powders were proved to be phase-pure cubic spinels which formed agglomerated micrograins. Series of photocatalytic experiments of methylene blue degradation were done.
The influence of different experimental conditions was investigated including variations of: pH values, concentrations of the pollutant, masses of the photocatalyst, different light sources and therefore different light irradiation. Interesting results, including enhancement of the degradation rate with the introduction of cobalt into MgFe2O4 and decrease of the degradation rate with further increase of cobalt content and formation of hard agglomerates, open new possibilities for further investigation of the utilisation of Co/Mg ferrites as photocatalysts.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of abstracts / Eighteenth Young Researchers' Conference Materials Sciences and Engineering, December 4-6, 2019, Belgrade, Serbia",
title = "Finding optimal conditions and investigating the structure & morphology of cobalt/magnesium ferrite based cubic spinels (CoxMg1-xFe2O4) as photocatalysts",
pages = "71-71",
url = "https://hdl.handle.net/21.15107/rcub_dais_6963"
}
Dojčinović, M., Vasiljević, Z. Ž., Tadić, N. B., Pavlović, V. P., Barišić, D., Pajić, D.,& Nikolić, M. V.. (2019). Finding optimal conditions and investigating the structure & morphology of cobalt/magnesium ferrite based cubic spinels (CoxMg1-xFe2O4) as photocatalysts. in Program and the Book of abstracts / Eighteenth Young Researchers' Conference Materials Sciences and Engineering, December 4-6, 2019, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 71-71.
https://hdl.handle.net/21.15107/rcub_dais_6963
Dojčinović M, Vasiljević ZŽ, Tadić NB, Pavlović VP, Barišić D, Pajić D, Nikolić MV. Finding optimal conditions and investigating the structure & morphology of cobalt/magnesium ferrite based cubic spinels (CoxMg1-xFe2O4) as photocatalysts. in Program and the Book of abstracts / Eighteenth Young Researchers' Conference Materials Sciences and Engineering, December 4-6, 2019, Belgrade, Serbia. 2019;:71-71.
https://hdl.handle.net/21.15107/rcub_dais_6963 .
Dojčinović, Milena, Vasiljević, Zorka Ž., Tadić, Nenad B., Pavlović, Vera P., Barišić, Dario, Pajić, Damir, Nikolić, Maria Vesna, "Finding optimal conditions and investigating the structure & morphology of cobalt/magnesium ferrite based cubic spinels (CoxMg1-xFe2O4) as photocatalysts" in Program and the Book of abstracts / Eighteenth Young Researchers' Conference Materials Sciences and Engineering, December 4-6, 2019, Belgrade, Serbia (2019):71-71,
https://hdl.handle.net/21.15107/rcub_dais_6963 .

Structure, morphology and photocatalytic properties of CoxMg1-xFe2O4 (0<x<1) spinel ferrites obtained by sol-gel synthesis

Vasiljević, Zorka Ž.; Dojčinović, Milena; Pavlović, Vera P.; Vujančević, Jelena; Tadić, Nenad B.; Nikolić, Maria Vesna

(Belgrade : Materials Research Society of Serbia, 2019)

TY  - CONF
AU  - Vasiljević, Zorka Ž.
AU  - Dojčinović, Milena
AU  - Pavlović, Vera P.
AU  - Vujančević, Jelena
AU  - Tadić, Nenad B.
AU  - Nikolić, Maria Vesna
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/6679
AB  - Nanocrystalline cobalt magnesium ferrites with varying cobalt and magnesium content (CoxMg1-xFe2O4, 0<x<1) were synthesized using the sol-gel self-combustion method with citric acid as fuel, followed by calcination at 700 C for 2 hours. Structural characterization was performed using Xray diffraction (XRD), field emission scanning electron microscopy (FE-SEM) and Raman spectroscopy. It confirmed the formation of agglomerated nanocrystalline ferrites with an inverse cubic spinel structure. The optical band gap energy was determined using UV/Vis spectrophotometry. It reduced with increased Co content. Visible light photocatalytic activity was tested using natural and artificial light sources through a series of experimental degradations of the methylene blue (MB) solution.
PB  - Belgrade : Materials Research Society of Serbia
C3  - Programme and The Book of abstracts / Twenty-first Annual Conference YUCOMAT 2019 & Eleventh World Round Table Conference on Sintering WRTCS 2019, Herceg Novi, Montenegro, September 2-6, 2019
T1  - Structure, morphology and photocatalytic properties of CoxMg1-xFe2O4 (0<x<1) spinel ferrites obtained by sol-gel synthesis
SP  - 126
EP  - 126
UR  - https://hdl.handle.net/21.15107/rcub_dais_6679
ER  - 
@conference{
author = "Vasiljević, Zorka Ž. and Dojčinović, Milena and Pavlović, Vera P. and Vujančević, Jelena and Tadić, Nenad B. and Nikolić, Maria Vesna",
year = "2019",
abstract = "Nanocrystalline cobalt magnesium ferrites with varying cobalt and magnesium content (CoxMg1-xFe2O4, 0<x<1) were synthesized using the sol-gel self-combustion method with citric acid as fuel, followed by calcination at 700 C for 2 hours. Structural characterization was performed using Xray diffraction (XRD), field emission scanning electron microscopy (FE-SEM) and Raman spectroscopy. It confirmed the formation of agglomerated nanocrystalline ferrites with an inverse cubic spinel structure. The optical band gap energy was determined using UV/Vis spectrophotometry. It reduced with increased Co content. Visible light photocatalytic activity was tested using natural and artificial light sources through a series of experimental degradations of the methylene blue (MB) solution.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "Programme and The Book of abstracts / Twenty-first Annual Conference YUCOMAT 2019 & Eleventh World Round Table Conference on Sintering WRTCS 2019, Herceg Novi, Montenegro, September 2-6, 2019",
title = "Structure, morphology and photocatalytic properties of CoxMg1-xFe2O4 (0<x<1) spinel ferrites obtained by sol-gel synthesis",
pages = "126-126",
url = "https://hdl.handle.net/21.15107/rcub_dais_6679"
}
Vasiljević, Z. Ž., Dojčinović, M., Pavlović, V. P., Vujančević, J., Tadić, N. B.,& Nikolić, M. V.. (2019). Structure, morphology and photocatalytic properties of CoxMg1-xFe2O4 (0<x<1) spinel ferrites obtained by sol-gel synthesis. in Programme and The Book of abstracts / Twenty-first Annual Conference YUCOMAT 2019 & Eleventh World Round Table Conference on Sintering WRTCS 2019, Herceg Novi, Montenegro, September 2-6, 2019
Belgrade : Materials Research Society of Serbia., 126-126.
https://hdl.handle.net/21.15107/rcub_dais_6679
Vasiljević ZŽ, Dojčinović M, Pavlović VP, Vujančević J, Tadić NB, Nikolić MV. Structure, morphology and photocatalytic properties of CoxMg1-xFe2O4 (0<x<1) spinel ferrites obtained by sol-gel synthesis. in Programme and The Book of abstracts / Twenty-first Annual Conference YUCOMAT 2019 & Eleventh World Round Table Conference on Sintering WRTCS 2019, Herceg Novi, Montenegro, September 2-6, 2019. 2019;:126-126.
https://hdl.handle.net/21.15107/rcub_dais_6679 .
Vasiljević, Zorka Ž., Dojčinović, Milena, Pavlović, Vera P., Vujančević, Jelena, Tadić, Nenad B., Nikolić, Maria Vesna, "Structure, morphology and photocatalytic properties of CoxMg1-xFe2O4 (0<x<1) spinel ferrites obtained by sol-gel synthesis" in Programme and The Book of abstracts / Twenty-first Annual Conference YUCOMAT 2019 & Eleventh World Round Table Conference on Sintering WRTCS 2019, Herceg Novi, Montenegro, September 2-6, 2019 (2019):126-126,
https://hdl.handle.net/21.15107/rcub_dais_6679 .

The effect of pH on visible-light photocatalytic properties of pseudobrookite nanoparticles

Vasiljević, Zorka Ž.; Dojčinović, Milena; Vujančević, Jelena; Tadić, Nenad B.; Nikolić, Maria Vesna

(Belgrade : Materials Research Society of Serbia, 2019)

TY  - CONF
AU  - Vasiljević, Zorka Ž.
AU  - Dojčinović, Milena
AU  - Vujančević, Jelena
AU  - Tadić, Nenad B.
AU  - Nikolić, Maria Vesna
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/6673
AB  - In this study, pseudobrookite (Fe2TiO5) nanoparticles were fabricated by a modified sol-gel method using Fe(NO3)39H2O and Ti(OC3H7)4 as starting reagents and ethanol as solvent. Oxalic acid was used as a chelating agent while cetyltrimethyammonium bromide (CTAB) and citric monohydrate were used as surfactants. Structral and morphological characterization using X-Ray Diffraction (XRD) and Field Emission Scanning Electron Microscopy (FESEM) analysis confirmed the formation of pseudobrookite nanoparticles. As synthetized Fe2TiO5 nanoparticles were utilized as photocatalysts for decolorisation of Methylene blue (MB) under visible light irradiation. It was observed that the adsorption of MB onto Fe2TiO5 nanoparticles is strongly dependent on the solution pH. Maximum decolorozation was observed for Fe2TiO5 nanoparticles prepared with CTAB under alcaline conditions (pH=10.5).
PB  - Belgrade : Materials Research Society of Serbia
C3  - Programme and The Book of abstracts / Twenty-first Annual Conference YUCOMAT 2019 & Eleventh World Round Table Conference on Sintering WRTCS 2019, Herceg Novi, Montenegro, September 2-6, 2019
T1  - The effect of pH on visible-light photocatalytic properties of pseudobrookite nanoparticles
SP  - 130
EP  - 130
UR  - https://hdl.handle.net/21.15107/rcub_dais_6673
ER  - 
@conference{
author = "Vasiljević, Zorka Ž. and Dojčinović, Milena and Vujančević, Jelena and Tadić, Nenad B. and Nikolić, Maria Vesna",
year = "2019",
abstract = "In this study, pseudobrookite (Fe2TiO5) nanoparticles were fabricated by a modified sol-gel method using Fe(NO3)39H2O and Ti(OC3H7)4 as starting reagents and ethanol as solvent. Oxalic acid was used as a chelating agent while cetyltrimethyammonium bromide (CTAB) and citric monohydrate were used as surfactants. Structral and morphological characterization using X-Ray Diffraction (XRD) and Field Emission Scanning Electron Microscopy (FESEM) analysis confirmed the formation of pseudobrookite nanoparticles. As synthetized Fe2TiO5 nanoparticles were utilized as photocatalysts for decolorisation of Methylene blue (MB) under visible light irradiation. It was observed that the adsorption of MB onto Fe2TiO5 nanoparticles is strongly dependent on the solution pH. Maximum decolorozation was observed for Fe2TiO5 nanoparticles prepared with CTAB under alcaline conditions (pH=10.5).",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "Programme and The Book of abstracts / Twenty-first Annual Conference YUCOMAT 2019 & Eleventh World Round Table Conference on Sintering WRTCS 2019, Herceg Novi, Montenegro, September 2-6, 2019",
title = "The effect of pH on visible-light photocatalytic properties of pseudobrookite nanoparticles",
pages = "130-130",
url = "https://hdl.handle.net/21.15107/rcub_dais_6673"
}
Vasiljević, Z. Ž., Dojčinović, M., Vujančević, J., Tadić, N. B.,& Nikolić, M. V.. (2019). The effect of pH on visible-light photocatalytic properties of pseudobrookite nanoparticles. in Programme and The Book of abstracts / Twenty-first Annual Conference YUCOMAT 2019 & Eleventh World Round Table Conference on Sintering WRTCS 2019, Herceg Novi, Montenegro, September 2-6, 2019
Belgrade : Materials Research Society of Serbia., 130-130.
https://hdl.handle.net/21.15107/rcub_dais_6673
Vasiljević ZŽ, Dojčinović M, Vujančević J, Tadić NB, Nikolić MV. The effect of pH on visible-light photocatalytic properties of pseudobrookite nanoparticles. in Programme and The Book of abstracts / Twenty-first Annual Conference YUCOMAT 2019 & Eleventh World Round Table Conference on Sintering WRTCS 2019, Herceg Novi, Montenegro, September 2-6, 2019. 2019;:130-130.
https://hdl.handle.net/21.15107/rcub_dais_6673 .
Vasiljević, Zorka Ž., Dojčinović, Milena, Vujančević, Jelena, Tadić, Nenad B., Nikolić, Maria Vesna, "The effect of pH on visible-light photocatalytic properties of pseudobrookite nanoparticles" in Programme and The Book of abstracts / Twenty-first Annual Conference YUCOMAT 2019 & Eleventh World Round Table Conference on Sintering WRTCS 2019, Herceg Novi, Montenegro, September 2-6, 2019 (2019):130-130,
https://hdl.handle.net/21.15107/rcub_dais_6673 .

Nanocomposite Zn2SnO4/SnO2 Thick films as a Humidity Sensing Material

Nikolić, Maria Vesna; Dojčinović, Milena; Vasiljević, Zorka Ž.; Luković, Miloljub D.; Labus, Nebojša

(IEEE, 2019)

TY  - CONF
AU  - Nikolić, Maria Vesna
AU  - Dojčinović, Milena
AU  - Vasiljević, Zorka Ž.
AU  - Luković, Miloljub D.
AU  - Labus, Nebojša
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/6687
AB  - Nanocomposite Zn2SnO4/SnO2 powder was obtained by solid state synthesis from homogenized starting nanopowders of ZnO and SnO2 mixed in the 1:1 molar ratio, structurally and morphologically characterized using X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM). Thick film paste was made by adding organic vehicles to the obtained powder. Three to five layers (layer thickness approx. 12 μm) were screen printed on alumina substrate with small test PdAg electrodes and fired at 600°C for 30 minutes. SEM analysis confirmed formation of a porous structure suitable for humidity sensing. Impedance response was studied at the working temperatures of 25 and 50°in a humidity chamber where the relative humidity (RH) was 30-90% and measured frequency 42 Hz - 1 MHz. With increase in film thickness the overall sensor impedance increased. It reduced at 100 Hz from 36 to 0.25 MΩ (60 μm), from 23.4 to 0.25 MΩ (48 μm) and from 6.8 to 0.02 MΩ (36 μm) at 25°C, while at 50°C the overall measured impedance was lower, and reduced from 14 MΩ to 0.72 MΩ (48 μm) for RH 30 and 90%, respectively. The response (8 s) and recovery (10 s) was fast, showing that this nanocomposite has potential for application in humidity sensing.
PB  - IEEE
C3  - 2019 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)
T1  - Nanocomposite Zn2SnO4/SnO2 Thick films as a Humidity Sensing Material
SP  - 1
EP  - 3
DO  - 10.1109/FLEPS.2019.8792304
UR  - https://hdl.handle.net/21.15107/rcub_dais_6687
ER  - 
@conference{
author = "Nikolić, Maria Vesna and Dojčinović, Milena and Vasiljević, Zorka Ž. and Luković, Miloljub D. and Labus, Nebojša",
year = "2019",
abstract = "Nanocomposite Zn2SnO4/SnO2 powder was obtained by solid state synthesis from homogenized starting nanopowders of ZnO and SnO2 mixed in the 1:1 molar ratio, structurally and morphologically characterized using X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM). Thick film paste was made by adding organic vehicles to the obtained powder. Three to five layers (layer thickness approx. 12 μm) were screen printed on alumina substrate with small test PdAg electrodes and fired at 600°C for 30 minutes. SEM analysis confirmed formation of a porous structure suitable for humidity sensing. Impedance response was studied at the working temperatures of 25 and 50°in a humidity chamber where the relative humidity (RH) was 30-90% and measured frequency 42 Hz - 1 MHz. With increase in film thickness the overall sensor impedance increased. It reduced at 100 Hz from 36 to 0.25 MΩ (60 μm), from 23.4 to 0.25 MΩ (48 μm) and from 6.8 to 0.02 MΩ (36 μm) at 25°C, while at 50°C the overall measured impedance was lower, and reduced from 14 MΩ to 0.72 MΩ (48 μm) for RH 30 and 90%, respectively. The response (8 s) and recovery (10 s) was fast, showing that this nanocomposite has potential for application in humidity sensing.",
publisher = "IEEE",
journal = "2019 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)",
title = "Nanocomposite Zn2SnO4/SnO2 Thick films as a Humidity Sensing Material",
pages = "1-3",
doi = "10.1109/FLEPS.2019.8792304",
url = "https://hdl.handle.net/21.15107/rcub_dais_6687"
}
Nikolić, M. V., Dojčinović, M., Vasiljević, Z. Ž., Luković, M. D.,& Labus, N.. (2019). Nanocomposite Zn2SnO4/SnO2 Thick films as a Humidity Sensing Material. in 2019 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)
IEEE., 1-3.
https://doi.org/10.1109/FLEPS.2019.8792304
https://hdl.handle.net/21.15107/rcub_dais_6687
Nikolić MV, Dojčinović M, Vasiljević ZŽ, Luković MD, Labus N. Nanocomposite Zn2SnO4/SnO2 Thick films as a Humidity Sensing Material. in 2019 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS). 2019;:1-3.
doi:10.1109/FLEPS.2019.8792304
https://hdl.handle.net/21.15107/rcub_dais_6687 .
Nikolić, Maria Vesna, Dojčinović, Milena, Vasiljević, Zorka Ž., Luković, Miloljub D., Labus, Nebojša, "Nanocomposite Zn2SnO4/SnO2 Thick films as a Humidity Sensing Material" in 2019 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) (2019):1-3,
https://doi.org/10.1109/FLEPS.2019.8792304 .,
https://hdl.handle.net/21.15107/rcub_dais_6687 .
1
1

Nanocomposite Zn2SnO4/SnO2 Thick films as a Humidity Sensing Material

Nikolić, Maria Vesna; Dojčinović, Milena; Vasiljević, Zorka Ž.; Luković, Miloljub D.; Labus, Nebojša

(IEEE, 2019)

TY  - CONF
AU  - Nikolić, Maria Vesna
AU  - Dojčinović, Milena
AU  - Vasiljević, Zorka Ž.
AU  - Luković, Miloljub D.
AU  - Labus, Nebojša
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/6688
AB  - Nanocomposite Zn2SnO4/SnO2 powder was obtained by solid state synthesis from homogenized starting nanopowders of ZnO and SnO2 mixed in the 1:1 molar ratio, structurally and morphologically characterized using X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM). Thick film paste was made by adding organic vehicles to the obtained powder. Three to five layers (layer thickness approx. 12 μm) were screen printed on alumina substrate with small test PdAg electrodes and fired at 600°C for 30 minutes. SEM analysis confirmed formation of a porous structure suitable for humidity sensing. Impedance response was studied at the working temperatures of 25 and 50°in a humidity chamber where the relative humidity (RH) was 30-90% and measured frequency 42 Hz - 1 MHz. With increase in film thickness the overall sensor impedance increased. It reduced at 100 Hz from 36 to 0.25 MΩ (60 μm), from 23.4 to 0.25 MΩ (48 μm) and from 6.8 to 0.02 MΩ (36 μm) at 25°C, while at 50°C the overall measured impedance was lower, and reduced from 14 MΩ to 0.72 MΩ (48 μm) for RH 30 and 90%, respectively. The response (8 s) and recovery (10 s) was fast, showing that this nanocomposite has potential for application in humidity sensing.
PB  - IEEE
C3  - 2019 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)
T1  - Nanocomposite Zn2SnO4/SnO2 Thick films as a Humidity Sensing Material
SP  - 1
EP  - 3
DO  - 10.1109/FLEPS.2019.8792304
UR  - https://hdl.handle.net/21.15107/rcub_dais_6688
ER  - 
@conference{
author = "Nikolić, Maria Vesna and Dojčinović, Milena and Vasiljević, Zorka Ž. and Luković, Miloljub D. and Labus, Nebojša",
year = "2019",
abstract = "Nanocomposite Zn2SnO4/SnO2 powder was obtained by solid state synthesis from homogenized starting nanopowders of ZnO and SnO2 mixed in the 1:1 molar ratio, structurally and morphologically characterized using X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM). Thick film paste was made by adding organic vehicles to the obtained powder. Three to five layers (layer thickness approx. 12 μm) were screen printed on alumina substrate with small test PdAg electrodes and fired at 600°C for 30 minutes. SEM analysis confirmed formation of a porous structure suitable for humidity sensing. Impedance response was studied at the working temperatures of 25 and 50°in a humidity chamber where the relative humidity (RH) was 30-90% and measured frequency 42 Hz - 1 MHz. With increase in film thickness the overall sensor impedance increased. It reduced at 100 Hz from 36 to 0.25 MΩ (60 μm), from 23.4 to 0.25 MΩ (48 μm) and from 6.8 to 0.02 MΩ (36 μm) at 25°C, while at 50°C the overall measured impedance was lower, and reduced from 14 MΩ to 0.72 MΩ (48 μm) for RH 30 and 90%, respectively. The response (8 s) and recovery (10 s) was fast, showing that this nanocomposite has potential for application in humidity sensing.",
publisher = "IEEE",
journal = "2019 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)",
title = "Nanocomposite Zn2SnO4/SnO2 Thick films as a Humidity Sensing Material",
pages = "1-3",
doi = "10.1109/FLEPS.2019.8792304",
url = "https://hdl.handle.net/21.15107/rcub_dais_6688"
}
Nikolić, M. V., Dojčinović, M., Vasiljević, Z. Ž., Luković, M. D.,& Labus, N.. (2019). Nanocomposite Zn2SnO4/SnO2 Thick films as a Humidity Sensing Material. in 2019 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)
IEEE., 1-3.
https://doi.org/10.1109/FLEPS.2019.8792304
https://hdl.handle.net/21.15107/rcub_dais_6688
Nikolić MV, Dojčinović M, Vasiljević ZŽ, Luković MD, Labus N. Nanocomposite Zn2SnO4/SnO2 Thick films as a Humidity Sensing Material. in 2019 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS). 2019;:1-3.
doi:10.1109/FLEPS.2019.8792304
https://hdl.handle.net/21.15107/rcub_dais_6688 .
Nikolić, Maria Vesna, Dojčinović, Milena, Vasiljević, Zorka Ž., Luković, Miloljub D., Labus, Nebojša, "Nanocomposite Zn2SnO4/SnO2 Thick films as a Humidity Sensing Material" in 2019 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) (2019):1-3,
https://doi.org/10.1109/FLEPS.2019.8792304 .,
https://hdl.handle.net/21.15107/rcub_dais_6688 .
1
1

Humidity sensing potential of iron manganite (FeMNO3)

Nikolić, Maria Vesna; Luković, Miloljub D.; Vasiljević, Zorka Ž.; Dojčinović, Milena; Labus, Nebojša

(Budapest : [s. n.], 2019)

TY  - CONF
AU  - Nikolić, Maria Vesna
AU  - Luković, Miloljub D.
AU  - Vasiljević, Zorka Ž.
AU  - Dojčinović, Milena
AU  - Labus, Nebojša
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/6999
AB  - Though different metal oxide systems have been investigated and applied in humidity sensing as resistive or capacitive ceramic humidity sensors new materials remain the subject of much research. Iron manganite (FeMnO3) has a bixybyite type structure with the cubic space group. Iron manganite powder was obtained by solid state synthesis (milling in a planetary ball mill, calcination at 1000°C for 2 hours, milling) of starting hematite (Fe2O3) and manganese carbonate (MnCO3) powders mixed in a suitable ratio. Bulk samples were obtained by sintering green samples of pressed powder 8 mm in diameter at 1000oC for 4 hours. Thick film paste was obtained by mixing the powder with organic vehicles. Four layers were screen printed on test interdigitated electrodes on alumina substrate and fired at 900oC for 6 h. XRD analysis of bulk and thick film samples confirmed the formation of iron manganite with a perovskite structure. Scanning electron microscopy (SEM) analysis of freshly cleaved bulk samples showed a network of interconnected grains and pores. A similar structure was observed for the thick film sample surface. Change of complex impedance was monitored in a humidity chamber in the relative humidity range 30-90% at the working temperature of 25°C and frequency range 42 Hz to 1 MHz. In bulk samples at 100 Hz the impedance decreased from 32 (RH 30%) to 3 MΩ (RH 90%), while in thick film samples on test interdigitated electrodes it decreased from 8.24 (RH 30%) to 0.87 MΩ ((RH 90%). The thick film sensor response and recovery was several seconds and a low hysteresis value of 2.78% was obtained showing that iron manganite can successfully be applied for humidity sensing applications.
PB  - Budapest : [s. n.]
C3  - Abstracts / International Workshop on Woman in Ceramic Science (WoCeram2019), April 7-9, 2019/ Budapest, Hungary, Novotel Danube Budapest
T1  - Humidity sensing potential of iron manganite (FeMNO3)
SP  - 16
EP  - 17
UR  - https://hdl.handle.net/21.15107/rcub_dais_6999
ER  - 
@conference{
author = "Nikolić, Maria Vesna and Luković, Miloljub D. and Vasiljević, Zorka Ž. and Dojčinović, Milena and Labus, Nebojša",
year = "2019",
abstract = "Though different metal oxide systems have been investigated and applied in humidity sensing as resistive or capacitive ceramic humidity sensors new materials remain the subject of much research. Iron manganite (FeMnO3) has a bixybyite type structure with the cubic space group. Iron manganite powder was obtained by solid state synthesis (milling in a planetary ball mill, calcination at 1000°C for 2 hours, milling) of starting hematite (Fe2O3) and manganese carbonate (MnCO3) powders mixed in a suitable ratio. Bulk samples were obtained by sintering green samples of pressed powder 8 mm in diameter at 1000oC for 4 hours. Thick film paste was obtained by mixing the powder with organic vehicles. Four layers were screen printed on test interdigitated electrodes on alumina substrate and fired at 900oC for 6 h. XRD analysis of bulk and thick film samples confirmed the formation of iron manganite with a perovskite structure. Scanning electron microscopy (SEM) analysis of freshly cleaved bulk samples showed a network of interconnected grains and pores. A similar structure was observed for the thick film sample surface. Change of complex impedance was monitored in a humidity chamber in the relative humidity range 30-90% at the working temperature of 25°C and frequency range 42 Hz to 1 MHz. In bulk samples at 100 Hz the impedance decreased from 32 (RH 30%) to 3 MΩ (RH 90%), while in thick film samples on test interdigitated electrodes it decreased from 8.24 (RH 30%) to 0.87 MΩ ((RH 90%). The thick film sensor response and recovery was several seconds and a low hysteresis value of 2.78% was obtained showing that iron manganite can successfully be applied for humidity sensing applications.",
publisher = "Budapest : [s. n.]",
journal = "Abstracts / International Workshop on Woman in Ceramic Science (WoCeram2019), April 7-9, 2019/ Budapest, Hungary, Novotel Danube Budapest",
title = "Humidity sensing potential of iron manganite (FeMNO3)",
pages = "16-17",
url = "https://hdl.handle.net/21.15107/rcub_dais_6999"
}
Nikolić, M. V., Luković, M. D., Vasiljević, Z. Ž., Dojčinović, M.,& Labus, N.. (2019). Humidity sensing potential of iron manganite (FeMNO3). in Abstracts / International Workshop on Woman in Ceramic Science (WoCeram2019), April 7-9, 2019/ Budapest, Hungary, Novotel Danube Budapest
Budapest : [s. n.]., 16-17.
https://hdl.handle.net/21.15107/rcub_dais_6999
Nikolić MV, Luković MD, Vasiljević ZŽ, Dojčinović M, Labus N. Humidity sensing potential of iron manganite (FeMNO3). in Abstracts / International Workshop on Woman in Ceramic Science (WoCeram2019), April 7-9, 2019/ Budapest, Hungary, Novotel Danube Budapest. 2019;:16-17.
https://hdl.handle.net/21.15107/rcub_dais_6999 .
Nikolić, Maria Vesna, Luković, Miloljub D., Vasiljević, Zorka Ž., Dojčinović, Milena, Labus, Nebojša, "Humidity sensing potential of iron manganite (FeMNO3)" in Abstracts / International Workshop on Woman in Ceramic Science (WoCeram2019), April 7-9, 2019/ Budapest, Hungary, Novotel Danube Budapest (2019):16-17,
https://hdl.handle.net/21.15107/rcub_dais_6999 .

Nanocrystalline SnO2-Zn2SnO4 composite thick films applied as humidity sensors

Nikolić, Maria Vesna; Luković, Miloljub D.; Dojčinović, Milena; Vasiljević, Zorka Ž.

(Belgrade : Institute for Multidisciplinary Research, 2019)

TY  - CONF
AU  - Nikolić, Maria Vesna
AU  - Luković, Miloljub D.
AU  - Dojčinović, Milena
AU  - Vasiljević, Zorka Ž.
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/7006
AB  - Starting ZnO and SnO2 nanopowders (<100 nm) were mixed in a suitable ratio and calcined at 1050 °C for 2 hours to obtain nanocrystalline SnO2-Zn2SnO4 composite powder. Structural characterization performed by X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM) showed that a nanocrystalline composite SnO2-Zn2SnO4 powder was obtained. Thick film paste was made by adding organic vehicles to the powder. Screen printing of four and five layers of thick film paste was performed on two interdigitated test electrode configurations. They were calcined at 500 and 600 °C for 30 minutes. Impedance response was analyzed at several working temperatures (20-60 °C) in the relative humidity range 30-90% and frequency 42 Hz to 1 MHz. Increase in relative humidity lead to a decrease in impedance, especially at lower frequencies. The sensor time delay between absorption and desorption processes was low and the response and recovery times fast showing that the nanocystalline SnO2-Zn2SnO4 composite has potential for application in humidity sensing.
PB  - Belgrade : Institute for Multidisciplinary Research
C3  - Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia
T1  - Nanocrystalline SnO2-Zn2SnO4 composite thick films applied as humidity sensors
SP  - 82
EP  - 82
UR  - https://hdl.handle.net/21.15107/rcub_dais_7006
ER  - 
@conference{
author = "Nikolić, Maria Vesna and Luković, Miloljub D. and Dojčinović, Milena and Vasiljević, Zorka Ž.",
year = "2019",
abstract = "Starting ZnO and SnO2 nanopowders (<100 nm) were mixed in a suitable ratio and calcined at 1050 °C for 2 hours to obtain nanocrystalline SnO2-Zn2SnO4 composite powder. Structural characterization performed by X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM) showed that a nanocrystalline composite SnO2-Zn2SnO4 powder was obtained. Thick film paste was made by adding organic vehicles to the powder. Screen printing of four and five layers of thick film paste was performed on two interdigitated test electrode configurations. They were calcined at 500 and 600 °C for 30 minutes. Impedance response was analyzed at several working temperatures (20-60 °C) in the relative humidity range 30-90% and frequency 42 Hz to 1 MHz. Increase in relative humidity lead to a decrease in impedance, especially at lower frequencies. The sensor time delay between absorption and desorption processes was low and the response and recovery times fast showing that the nanocystalline SnO2-Zn2SnO4 composite has potential for application in humidity sensing.",
publisher = "Belgrade : Institute for Multidisciplinary Research",
journal = "Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia",
title = "Nanocrystalline SnO2-Zn2SnO4 composite thick films applied as humidity sensors",
pages = "82-82",
url = "https://hdl.handle.net/21.15107/rcub_dais_7006"
}
Nikolić, M. V., Luković, M. D., Dojčinović, M.,& Vasiljević, Z. Ž.. (2019). Nanocrystalline SnO2-Zn2SnO4 composite thick films applied as humidity sensors. in Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia
Belgrade : Institute for Multidisciplinary Research., 82-82.
https://hdl.handle.net/21.15107/rcub_dais_7006
Nikolić MV, Luković MD, Dojčinović M, Vasiljević ZŽ. Nanocrystalline SnO2-Zn2SnO4 composite thick films applied as humidity sensors. in Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia. 2019;:82-82.
https://hdl.handle.net/21.15107/rcub_dais_7006 .
Nikolić, Maria Vesna, Luković, Miloljub D., Dojčinović, Milena, Vasiljević, Zorka Ž., "Nanocrystalline SnO2-Zn2SnO4 composite thick films applied as humidity sensors" in Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia (2019):82-82,
https://hdl.handle.net/21.15107/rcub_dais_7006 .

Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films

Nikolić, Maria Vesna; Vasiljević, Zorka Ž.; Luković, Miloljub D.; Pavlović, Vera P.; Vujančević, Jelena; Radovanović, Milan; Krstić, Jugoslav; Vlahović, Branislav; Pavlović, Vladimir B.

(Elsevier, 2018)

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Vasiljević, Zorka Ž.
AU  - Luković, Miloljub D.
AU  - Pavlović, Vera P.
AU  - Vujančević, Jelena
AU  - Radovanović, Milan
AU  - Krstić, Jugoslav
AU  - Vlahović, Branislav
AU  - Pavlović, Vladimir B.
PY  - 2018
UR  - http://www.sciencedirect.com/science/article/pii/S0925400518316836
UR  - https://dais.sanu.ac.rs/123456789/4605
AB  - Pseudobrookite based nanopowder was obtained by solid state synthesis of starting hematite and anatase nanopowders in the weight ratio 55:45. Structural and morphological properties were analyzed using X-ray diffraction (XRD), BET, X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, UV/Vis diffuse reflectance spectroscopy, Field emission scanning electron microscopy (FESEM) and Transmission electron microscopy (TEM) confirming the formation of nanocrystalline pseudobrookite. The obtained powder was mixed with a binder (ethyl cellulose), dispersant (α-terpinol) and adhesion agents (acetic acid and distilled water) to obtain a thick film paste. It was screen printed on alumina substrate with interdigitated PdAg electrodes and fired at 600 °C for 30 min. Formation of a porous nanocrystalline thick film structure was shown using Scanning electron microscopy (SEM), while Hall measurements enabled determination of carrier mobility. Change of impedance response in the frequency range 42 Hz–1 MHz with humidity was analyzed at room temperature (25 °C) and 50 °C in the relative humidity range 30–90% and 40–90%, respectively. At 42 Hz, and room temperature the impedance reduced ∼28 times, while at 50 °C it reduced ∼147 times in the relative humidity range 40–90%. The sensor showed rapid response (16 s) and relatively low hysteresis (8.39% at 25 °C and 2.64% at 50 °C) showing that this is a promising material for application in humidity sensing.
PB  - Elsevier
T2  - Sensors and Actuators B: Chemical
T1  - Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films
SP  - 654
EP  - 664
VL  - 277
DO  - 10.1016/j.snb.2018.09.063
UR  - https://hdl.handle.net/21.15107/rcub_dais_4605
ER  - 
@article{
author = "Nikolić, Maria Vesna and Vasiljević, Zorka Ž. and Luković, Miloljub D. and Pavlović, Vera P. and Vujančević, Jelena and Radovanović, Milan and Krstić, Jugoslav and Vlahović, Branislav and Pavlović, Vladimir B.",
year = "2018",
abstract = "Pseudobrookite based nanopowder was obtained by solid state synthesis of starting hematite and anatase nanopowders in the weight ratio 55:45. Structural and morphological properties were analyzed using X-ray diffraction (XRD), BET, X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, UV/Vis diffuse reflectance spectroscopy, Field emission scanning electron microscopy (FESEM) and Transmission electron microscopy (TEM) confirming the formation of nanocrystalline pseudobrookite. The obtained powder was mixed with a binder (ethyl cellulose), dispersant (α-terpinol) and adhesion agents (acetic acid and distilled water) to obtain a thick film paste. It was screen printed on alumina substrate with interdigitated PdAg electrodes and fired at 600 °C for 30 min. Formation of a porous nanocrystalline thick film structure was shown using Scanning electron microscopy (SEM), while Hall measurements enabled determination of carrier mobility. Change of impedance response in the frequency range 42 Hz–1 MHz with humidity was analyzed at room temperature (25 °C) and 50 °C in the relative humidity range 30–90% and 40–90%, respectively. At 42 Hz, and room temperature the impedance reduced ∼28 times, while at 50 °C it reduced ∼147 times in the relative humidity range 40–90%. The sensor showed rapid response (16 s) and relatively low hysteresis (8.39% at 25 °C and 2.64% at 50 °C) showing that this is a promising material for application in humidity sensing.",
publisher = "Elsevier",
journal = "Sensors and Actuators B: Chemical",
title = "Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films",
pages = "654-664",
volume = "277",
doi = "10.1016/j.snb.2018.09.063",
url = "https://hdl.handle.net/21.15107/rcub_dais_4605"
}
Nikolić, M. V., Vasiljević, Z. Ž., Luković, M. D., Pavlović, V. P., Vujančević, J., Radovanović, M., Krstić, J., Vlahović, B.,& Pavlović, V. B.. (2018). Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films. in Sensors and Actuators B: Chemical
Elsevier., 277, 654-664.
https://doi.org/10.1016/j.snb.2018.09.063
https://hdl.handle.net/21.15107/rcub_dais_4605
Nikolić MV, Vasiljević ZŽ, Luković MD, Pavlović VP, Vujančević J, Radovanović M, Krstić J, Vlahović B, Pavlović VB. Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films. in Sensors and Actuators B: Chemical. 2018;277:654-664.
doi:10.1016/j.snb.2018.09.063
https://hdl.handle.net/21.15107/rcub_dais_4605 .
Nikolić, Maria Vesna, Vasiljević, Zorka Ž., Luković, Miloljub D., Pavlović, Vera P., Vujančević, Jelena, Radovanović, Milan, Krstić, Jugoslav, Vlahović, Branislav, Pavlović, Vladimir B., "Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films" in Sensors and Actuators B: Chemical, 277 (2018):654-664,
https://doi.org/10.1016/j.snb.2018.09.063 .,
https://hdl.handle.net/21.15107/rcub_dais_4605 .
23
20
20

Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films

Nikolić, Maria Vesna; Vasiljević, Zorka Ž.; Luković, Miloljub D.; Pavlović, Vera P.; Vujančević, Jelena; Radovanović, Milan; Krstić, Jugoslav; Vlahović, Branislav; Pavlović, Vladimir B.

(Elsevier, 2018)

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Vasiljević, Zorka Ž.
AU  - Luković, Miloljub D.
AU  - Pavlović, Vera P.
AU  - Vujančević, Jelena
AU  - Radovanović, Milan
AU  - Krstić, Jugoslav
AU  - Vlahović, Branislav
AU  - Pavlović, Vladimir B.
PY  - 2018
UR  - http://www.sciencedirect.com/science/article/pii/S0925400518316836
UR  - https://dais.sanu.ac.rs/123456789/4527
AB  - Pseudobrookite based nanopowder was obtained by solid state synthesis of starting hematite and anatase nanopowders in the weight ratio 55:45. Structural and morphological properties were analyzed using X-ray diffraction (XRD), BET, X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, UV/Vis diffuse reflectance spectroscopy, Field emission scanning electron microscopy (FESEM) and Transmission electron microscopy (TEM) confirming the formation of nanocrystalline pseudobrookite. The obtained powder was mixed with a binder (ethyl cellulose), dispersant (α-terpinol) and adhesion agents (acetic acid and distilled water) to obtain a thick film paste. It was screen printed on alumina substrate with interdigitated PdAg electrodes and fired at 600 °C for 30 min. Formation of a porous nanocrystalline thick film structure was shown using Scanning electron microscopy (SEM), while Hall measurements enabled determination of carrier mobility. Change of impedance response in the frequency range 42 Hz–1 MHz with humidity was analyzed at room temperature (25 °C) and 50 °C in the relative humidity range 30–90% and 40–90%, respectively. At 42 Hz, and room temperature the impedance reduced ∼28 times, while at 50 °C it reduced ∼147 times in the relative humidity range 40–90%. The sensor showed rapid response (16 s) and relatively low hysteresis (8.39% at 25 °C and 2.64% at 50 °C) showing that this is a promising material for application in humidity sensing.
PB  - Elsevier
T2  - Sensors and Actuators B: Chemical
T1  - Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films
SP  - 654
EP  - 664
VL  - 277
DO  - 10.1016/j.snb.2018.09.063
UR  - https://hdl.handle.net/21.15107/rcub_dais_4527
ER  - 
@article{
author = "Nikolić, Maria Vesna and Vasiljević, Zorka Ž. and Luković, Miloljub D. and Pavlović, Vera P. and Vujančević, Jelena and Radovanović, Milan and Krstić, Jugoslav and Vlahović, Branislav and Pavlović, Vladimir B.",
year = "2018",
abstract = "Pseudobrookite based nanopowder was obtained by solid state synthesis of starting hematite and anatase nanopowders in the weight ratio 55:45. Structural and morphological properties were analyzed using X-ray diffraction (XRD), BET, X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, UV/Vis diffuse reflectance spectroscopy, Field emission scanning electron microscopy (FESEM) and Transmission electron microscopy (TEM) confirming the formation of nanocrystalline pseudobrookite. The obtained powder was mixed with a binder (ethyl cellulose), dispersant (α-terpinol) and adhesion agents (acetic acid and distilled water) to obtain a thick film paste. It was screen printed on alumina substrate with interdigitated PdAg electrodes and fired at 600 °C for 30 min. Formation of a porous nanocrystalline thick film structure was shown using Scanning electron microscopy (SEM), while Hall measurements enabled determination of carrier mobility. Change of impedance response in the frequency range 42 Hz–1 MHz with humidity was analyzed at room temperature (25 °C) and 50 °C in the relative humidity range 30–90% and 40–90%, respectively. At 42 Hz, and room temperature the impedance reduced ∼28 times, while at 50 °C it reduced ∼147 times in the relative humidity range 40–90%. The sensor showed rapid response (16 s) and relatively low hysteresis (8.39% at 25 °C and 2.64% at 50 °C) showing that this is a promising material for application in humidity sensing.",
publisher = "Elsevier",
journal = "Sensors and Actuators B: Chemical",
title = "Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films",
pages = "654-664",
volume = "277",
doi = "10.1016/j.snb.2018.09.063",
url = "https://hdl.handle.net/21.15107/rcub_dais_4527"
}
Nikolić, M. V., Vasiljević, Z. Ž., Luković, M. D., Pavlović, V. P., Vujančević, J., Radovanović, M., Krstić, J., Vlahović, B.,& Pavlović, V. B.. (2018). Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films. in Sensors and Actuators B: Chemical
Elsevier., 277, 654-664.
https://doi.org/10.1016/j.snb.2018.09.063
https://hdl.handle.net/21.15107/rcub_dais_4527
Nikolić MV, Vasiljević ZŽ, Luković MD, Pavlović VP, Vujančević J, Radovanović M, Krstić J, Vlahović B, Pavlović VB. Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films. in Sensors and Actuators B: Chemical. 2018;277:654-664.
doi:10.1016/j.snb.2018.09.063
https://hdl.handle.net/21.15107/rcub_dais_4527 .
Nikolić, Maria Vesna, Vasiljević, Zorka Ž., Luković, Miloljub D., Pavlović, Vera P., Vujančević, Jelena, Radovanović, Milan, Krstić, Jugoslav, Vlahović, Branislav, Pavlović, Vladimir B., "Humidity sensing properties of nanocrystalline pseudobrookite (Fe2TiO5) based thick films" in Sensors and Actuators B: Chemical, 277 (2018):654-664,
https://doi.org/10.1016/j.snb.2018.09.063 .,
https://hdl.handle.net/21.15107/rcub_dais_4527 .
23
20
20

Application of Nanocrystalline Pseudobrookite (Fe2TiO5) Thick Films for Humidity Sensing

Nikolić, Maria Vesna; Luković, Miloljub D.; Vasiljević, Zorka Ž.; Vujančević, Jelena

(IEEE Computer Society, 2018)

TY  - CONF
AU  - Nikolić, Maria Vesna
AU  - Luković, Miloljub D.
AU  - Vasiljević, Zorka Ž.
AU  - Vujančević, Jelena
PY  - 2018
UR  - https://dais.sanu.ac.rs/123456789/4078
AB  - Pseudobrookite nanocrystalline thick films were screen printed on alumina substrate with small interdigitated PdAg electrodes (width 6 mm, length 12 mm, electrode spacing 0.2 mm) and fired at 600°C for 30 minutes. Scanning electron microscopy (SEM) of the thick film surface confirmed the formation of a porous structure consisting of agglomerated nanocrystalline grains of pseudobrookite. Impedance response of pseudobrookite thick film samples was measured in a humidity chamber at operating temperatures of 25 and 50°C in the relative humidity (RH) range 40-90% and frequency range 42 Hz-1 MHz. At the lowest frequency of 42 Hz at 25°C the impedance reduced 7 times (from 35.74 MΩ for RH 40% to 4.91 MΩ for RH 90%) and at 50°C 33 times (from 30.98 MΩ for RH 40% to 0.944MΩ for RH 90%). Low hysteresis (1.82 and 3.65%) was obtained at 25 and 50°C, respectively. Complex impedance was analyzed using an equivalent circuit consisting of parallel impedance and constant phase (CPE) element showing the dominant influence of grain boundaries. © 2018 IEEE.
PB  - IEEE Computer Society
C3  - Proceedings of the International Spring Seminar on Electronics Technology
T1  - Application of Nanocrystalline Pseudobrookite (Fe2TiO5) Thick Films for Humidity Sensing
DO  - 10.1109/ISSE.2018.8443672
UR  - https://hdl.handle.net/21.15107/rcub_dais_4078
ER  - 
@conference{
author = "Nikolić, Maria Vesna and Luković, Miloljub D. and Vasiljević, Zorka Ž. and Vujančević, Jelena",
year = "2018",
abstract = "Pseudobrookite nanocrystalline thick films were screen printed on alumina substrate with small interdigitated PdAg electrodes (width 6 mm, length 12 mm, electrode spacing 0.2 mm) and fired at 600°C for 30 minutes. Scanning electron microscopy (SEM) of the thick film surface confirmed the formation of a porous structure consisting of agglomerated nanocrystalline grains of pseudobrookite. Impedance response of pseudobrookite thick film samples was measured in a humidity chamber at operating temperatures of 25 and 50°C in the relative humidity (RH) range 40-90% and frequency range 42 Hz-1 MHz. At the lowest frequency of 42 Hz at 25°C the impedance reduced 7 times (from 35.74 MΩ for RH 40% to 4.91 MΩ for RH 90%) and at 50°C 33 times (from 30.98 MΩ for RH 40% to 0.944MΩ for RH 90%). Low hysteresis (1.82 and 3.65%) was obtained at 25 and 50°C, respectively. Complex impedance was analyzed using an equivalent circuit consisting of parallel impedance and constant phase (CPE) element showing the dominant influence of grain boundaries. © 2018 IEEE.",
publisher = "IEEE Computer Society",
journal = "Proceedings of the International Spring Seminar on Electronics Technology",
title = "Application of Nanocrystalline Pseudobrookite (Fe2TiO5) Thick Films for Humidity Sensing",
doi = "10.1109/ISSE.2018.8443672",
url = "https://hdl.handle.net/21.15107/rcub_dais_4078"
}
Nikolić, M. V., Luković, M. D., Vasiljević, Z. Ž.,& Vujančević, J.. (2018). Application of Nanocrystalline Pseudobrookite (Fe2TiO5) Thick Films for Humidity Sensing. in Proceedings of the International Spring Seminar on Electronics Technology
IEEE Computer Society..
https://doi.org/10.1109/ISSE.2018.8443672
https://hdl.handle.net/21.15107/rcub_dais_4078
Nikolić MV, Luković MD, Vasiljević ZŽ, Vujančević J. Application of Nanocrystalline Pseudobrookite (Fe2TiO5) Thick Films for Humidity Sensing. in Proceedings of the International Spring Seminar on Electronics Technology. 2018;.
doi:10.1109/ISSE.2018.8443672
https://hdl.handle.net/21.15107/rcub_dais_4078 .
Nikolić, Maria Vesna, Luković, Miloljub D., Vasiljević, Zorka Ž., Vujančević, Jelena, "Application of Nanocrystalline Pseudobrookite (Fe2TiO5) Thick Films for Humidity Sensing" in Proceedings of the International Spring Seminar on Electronics Technology (2018),
https://doi.org/10.1109/ISSE.2018.8443672 .,
https://hdl.handle.net/21.15107/rcub_dais_4078 .
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