Krstić, Jugoslav

Link to this page

Authority KeyName Variants
orcid::0000-0003-0321-0698
  • Krstić, Jugoslav (20)
  • Krstić, Jugoslav B. (6)
Projects

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

Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing

Nikolić, Maria Vesna; Krstić, Jugoslav; Labus, Nebojša; Luković, Miloljub; Dojčinović, Milena; Radovanović, Milan; Tadić, Nenad B.

(Elsevier, 2020)

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Krstić, Jugoslav
AU  - Labus, Nebojša
AU  - Luković, Miloljub
AU  - Dojčinović, Milena
AU  - Radovanović, Milan
AU  - Tadić, Nenad B.
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/10036
AB  - Iron manganite (FeMnO3) powder with a cubic (bixbyite,−Ia3) crystal structure was obtained by a solid statereaction. Thick film paste (powder+organic vehicles) was screen printed on alumina substrate with test interdigitatedPdAg electrodes. Significant porosity (60.6%) composed of macropores (larger than 100 nm) wasdetermined by Hg porosimetry, changing only slightly from the first extrusion run indicating a stable poresystem. Hg porosimetry evaluation of thick film samples enabled estimation of true textural parameters of thethick film compared to powder. Impedance response of the thick film sensor was monitored in a humiditychamber in the relative humidity (RH) range 30–90%, at room temperature (25 °C) and frequency range from42 Hz to 1 MHz. At 100 Hz the impedance reduced from 10.41 MΩ for RH 30% to 0.68 MΩ for RH 90%. Analysisof complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. Thesensor response and recovery was fast (several seconds) and a relatively low hysteresis value of 2.8% wasobtained.
PB  - Elsevier
T2  - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
T1  - Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing
SP  - 114547
VL  - 257
DO  - 10.1016/j.mseb.2020.114547
UR  - https://hdl.handle.net/21.15107/rcub_dais_10036
ER  - 
@article{
author = "Nikolić, Maria Vesna and Krstić, Jugoslav and Labus, Nebojša and Luković, Miloljub and Dojčinović, Milena and Radovanović, Milan and Tadić, Nenad B.",
year = "2020",
abstract = "Iron manganite (FeMnO3) powder with a cubic (bixbyite,−Ia3) crystal structure was obtained by a solid statereaction. Thick film paste (powder+organic vehicles) was screen printed on alumina substrate with test interdigitatedPdAg electrodes. Significant porosity (60.6%) composed of macropores (larger than 100 nm) wasdetermined by Hg porosimetry, changing only slightly from the first extrusion run indicating a stable poresystem. Hg porosimetry evaluation of thick film samples enabled estimation of true textural parameters of thethick film compared to powder. Impedance response of the thick film sensor was monitored in a humiditychamber in the relative humidity (RH) range 30–90%, at room temperature (25 °C) and frequency range from42 Hz to 1 MHz. At 100 Hz the impedance reduced from 10.41 MΩ for RH 30% to 0.68 MΩ for RH 90%. Analysisof complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. Thesensor response and recovery was fast (several seconds) and a relatively low hysteresis value of 2.8% wasobtained.",
publisher = "Elsevier",
journal = "Materials Science and Engineering B: Solid-State Materials for Advanced Technology",
title = "Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing",
pages = "114547",
volume = "257",
doi = "10.1016/j.mseb.2020.114547",
url = "https://hdl.handle.net/21.15107/rcub_dais_10036"
}
Nikolić, M. V., Krstić, J., Labus, N., Luković, M., Dojčinović, M., Radovanović, M.,& Tadić, N. B.. (2020). Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing. in Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Elsevier., 257, 114547.
https://doi.org/10.1016/j.mseb.2020.114547
https://hdl.handle.net/21.15107/rcub_dais_10036
Nikolić MV, Krstić J, Labus N, Luković M, Dojčinović M, Radovanović M, Tadić NB. Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing. in Materials Science and Engineering B: Solid-State Materials for Advanced Technology. 2020;257:114547.
doi:10.1016/j.mseb.2020.114547
https://hdl.handle.net/21.15107/rcub_dais_10036 .
Nikolić, Maria Vesna, Krstić, Jugoslav, Labus, Nebojša, Luković, Miloljub, Dojčinović, Milena, Radovanović, Milan, Tadić, Nenad B., "Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing" in Materials Science and Engineering B: Solid-State Materials for Advanced Technology, 257 (2020):114547,
https://doi.org/10.1016/j.mseb.2020.114547 .,
https://hdl.handle.net/21.15107/rcub_dais_10036 .
3
3
2

Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing

Nikolić, Maria Vesna; Krstić, Jugoslav; Labus, Nebojša; Luković, Miloljub; Dojčinović, Milena; Radovanović, Milan; Tadić, Nenad B.

(Elsevier, 2020)

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Krstić, Jugoslav
AU  - Labus, Nebojša
AU  - Luković, Miloljub
AU  - Dojčinović, Milena
AU  - Radovanović, Milan
AU  - Tadić, Nenad B.
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/8950
AB  - Iron manganite (FeMnO3) powder with a cubic (bixbyite,−Ia3) crystal structure was obtained by a solid statereaction. Thick film paste (powder+organic vehicles) was screen printed on alumina substrate with test interdigitatedPdAg electrodes. Significant porosity (60.6%) composed of macropores (larger than 100 nm) wasdetermined by Hg porosimetry, changing only slightly from the first extrusion run indicating a stable poresystem. Hg porosimetry evaluation of thick film samples enabled estimation of true textural parameters of thethick film compared to powder. Impedance response of the thick film sensor was monitored in a humiditychamber in the relative humidity (RH) range 30–90%, at room temperature (25 °C) and frequency range from42 Hz to 1 MHz. At 100 Hz the impedance reduced from 10.41 MΩ for RH 30% to 0.68 MΩ for RH 90%. Analysisof complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. Thesensor response and recovery was fast (several seconds) and a relatively low hysteresis value of 2.8% wasobtained.
PB  - Elsevier
T2  - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
T1  - Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing
SP  - 114547
VL  - 257
DO  - 10.1016/j.mseb.2020.114547
UR  - https://hdl.handle.net/21.15107/rcub_dais_8950
ER  - 
@article{
author = "Nikolić, Maria Vesna and Krstić, Jugoslav and Labus, Nebojša and Luković, Miloljub and Dojčinović, Milena and Radovanović, Milan and Tadić, Nenad B.",
year = "2020",
abstract = "Iron manganite (FeMnO3) powder with a cubic (bixbyite,−Ia3) crystal structure was obtained by a solid statereaction. Thick film paste (powder+organic vehicles) was screen printed on alumina substrate with test interdigitatedPdAg electrodes. Significant porosity (60.6%) composed of macropores (larger than 100 nm) wasdetermined by Hg porosimetry, changing only slightly from the first extrusion run indicating a stable poresystem. Hg porosimetry evaluation of thick film samples enabled estimation of true textural parameters of thethick film compared to powder. Impedance response of the thick film sensor was monitored in a humiditychamber in the relative humidity (RH) range 30–90%, at room temperature (25 °C) and frequency range from42 Hz to 1 MHz. At 100 Hz the impedance reduced from 10.41 MΩ for RH 30% to 0.68 MΩ for RH 90%. Analysisof complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. Thesensor response and recovery was fast (several seconds) and a relatively low hysteresis value of 2.8% wasobtained.",
publisher = "Elsevier",
journal = "Materials Science and Engineering B: Solid-State Materials for Advanced Technology",
title = "Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing",
pages = "114547",
volume = "257",
doi = "10.1016/j.mseb.2020.114547",
url = "https://hdl.handle.net/21.15107/rcub_dais_8950"
}
Nikolić, M. V., Krstić, J., Labus, N., Luković, M., Dojčinović, M., Radovanović, M.,& Tadić, N. B.. (2020). Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing. in Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Elsevier., 257, 114547.
https://doi.org/10.1016/j.mseb.2020.114547
https://hdl.handle.net/21.15107/rcub_dais_8950
Nikolić MV, Krstić J, Labus N, Luković M, Dojčinović M, Radovanović M, Tadić NB. Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing. in Materials Science and Engineering B: Solid-State Materials for Advanced Technology. 2020;257:114547.
doi:10.1016/j.mseb.2020.114547
https://hdl.handle.net/21.15107/rcub_dais_8950 .
Nikolić, Maria Vesna, Krstić, Jugoslav, Labus, Nebojša, Luković, Miloljub, Dojčinović, Milena, Radovanović, Milan, Tadić, Nenad B., "Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing" in Materials Science and Engineering B: Solid-State Materials for Advanced Technology, 257 (2020):114547,
https://doi.org/10.1016/j.mseb.2020.114547 .,
https://hdl.handle.net/21.15107/rcub_dais_8950 .
3
3
2

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

Valorization of walnut shell ash as a catalyst for biodiesel production

Miladinović, Marija R.; Zdujić, Miodrag; Veljović, Đorđe; Krstić, Jugoslav B.; Banković Ilić, Ivana B.; Veljković, Vlada B.; Stamenković, Olivera S.

(Elsevier, 2020)

TY  - JOUR
AU  - Miladinović, Marija R.
AU  - Zdujić, Miodrag
AU  - Veljović, Đorđe
AU  - Krstić, Jugoslav B.
AU  - Banković Ilić, Ivana B.
AU  - Veljković, Vlada B.
AU  - Stamenković, Olivera S.
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/6903
AB  - The catalytic activity of the walnut shell ash was investigated in the biodiesel production by the sunflower oil methanolysis. The catalyst was characterized by the TG-DTA, XRD, Hg porosimetry, N2 physisorption, SEM, and Hammett method. In addition, the effects of the catalyst loading and the methanol-to-oil molar ratio on the methyl esters synthesis were tested at the reaction temperature of 60 °C. The walnut shell ash provided a very fast reaction and a high FAME content (over 98%). As the reaction occurred in the absence of triacylglycerols mass transfer limitation, the pseudo-first-order model was employed for describing the kinetics of the reaction. The catalyst was successfully reused four times after the regeneration of the catalytic activity by recalcination at 800 °C.
PB  - Elsevier
T2  - Renewable Energy
T1  - Valorization of walnut shell ash as a catalyst for biodiesel production
SP  - 1033
EP  - 1043
VL  - 147
DO  - 10.1016/j.renene.2019.09.056
UR  - https://hdl.handle.net/21.15107/rcub_dais_6903
ER  - 
@article{
author = "Miladinović, Marija R. and Zdujić, Miodrag and Veljović, Đorđe and Krstić, Jugoslav B. and Banković Ilić, Ivana B. and Veljković, Vlada B. and Stamenković, Olivera S.",
year = "2020",
abstract = "The catalytic activity of the walnut shell ash was investigated in the biodiesel production by the sunflower oil methanolysis. The catalyst was characterized by the TG-DTA, XRD, Hg porosimetry, N2 physisorption, SEM, and Hammett method. In addition, the effects of the catalyst loading and the methanol-to-oil molar ratio on the methyl esters synthesis were tested at the reaction temperature of 60 °C. The walnut shell ash provided a very fast reaction and a high FAME content (over 98%). As the reaction occurred in the absence of triacylglycerols mass transfer limitation, the pseudo-first-order model was employed for describing the kinetics of the reaction. The catalyst was successfully reused four times after the regeneration of the catalytic activity by recalcination at 800 °C.",
publisher = "Elsevier",
journal = "Renewable Energy",
title = "Valorization of walnut shell ash as a catalyst for biodiesel production",
pages = "1033-1043",
volume = "147",
doi = "10.1016/j.renene.2019.09.056",
url = "https://hdl.handle.net/21.15107/rcub_dais_6903"
}
Miladinović, M. R., Zdujić, M., Veljović, Đ., Krstić, J. B., Banković Ilić, I. B., Veljković, V. B.,& Stamenković, O. S.. (2020). Valorization of walnut shell ash as a catalyst for biodiesel production. in Renewable Energy
Elsevier., 147, 1033-1043.
https://doi.org/10.1016/j.renene.2019.09.056
https://hdl.handle.net/21.15107/rcub_dais_6903
Miladinović MR, Zdujić M, Veljović Đ, Krstić JB, Banković Ilić IB, Veljković VB, Stamenković OS. Valorization of walnut shell ash as a catalyst for biodiesel production. in Renewable Energy. 2020;147:1033-1043.
doi:10.1016/j.renene.2019.09.056
https://hdl.handle.net/21.15107/rcub_dais_6903 .
Miladinović, Marija R., Zdujić, Miodrag, Veljović, Đorđe, Krstić, Jugoslav B., Banković Ilić, Ivana B., Veljković, Vlada B., Stamenković, Olivera S., "Valorization of walnut shell ash as a catalyst for biodiesel production" in Renewable Energy, 147 (2020):1033-1043,
https://doi.org/10.1016/j.renene.2019.09.056 .,
https://hdl.handle.net/21.15107/rcub_dais_6903 .
26
23
32

Valorization of walnut shell ash as a catalyst for biodiesel production

Miladinović, Marija R.; Zdujić, Miodrag; Veljović, Đorđe; Krstić, Jugoslav B.; Banković Ilić, Ivana B.; Veljković, Vlada B.; Stamenković, Olivera S.

(Elsevier, 2020)

TY  - JOUR
AU  - Miladinović, Marija R.
AU  - Zdujić, Miodrag
AU  - Veljović, Đorđe
AU  - Krstić, Jugoslav B.
AU  - Banković Ilić, Ivana B.
AU  - Veljković, Vlada B.
AU  - Stamenković, Olivera S.
PY  - 2020
UR  - http://cer.ihtm.bg.ac.rs/handle/123456789/3217
UR  - https://dais.sanu.ac.rs/123456789/6717
AB  - The catalytic activity of the walnut shell ash was investigated in the biodiesel production by the sunflower oil methanolysis. The catalyst was characterized by the TG-DTA, XRD, Hg porosimetry, N2 physisorption, SEM, and Hammett method. In addition, the effects of the catalyst loading and the methanol-to-oil molar ratio on the methyl esters synthesis were tested at the reaction temperature of 60 °C. The walnut shell ash provided a very fast reaction and a high FAME content (over 98%). As the reaction occurred in the absence of triacylglycerols mass transfer limitation, the pseudo-first-order model was employed for describing the kinetics of the reaction. The catalyst was successfully reused four times after the regeneration of the catalytic activity by recalcination at 800 °C.
PB  - Elsevier
T2  - Renewable Energy
T1  - Valorization of walnut shell ash as a catalyst for biodiesel production
SP  - 1033
EP  - 1043
VL  - 147
DO  - 10.1016/j.renene.2019.09.056
UR  - https://hdl.handle.net/21.15107/rcub_dais_6717
ER  - 
@article{
author = "Miladinović, Marija R. and Zdujić, Miodrag and Veljović, Đorđe and Krstić, Jugoslav B. and Banković Ilić, Ivana B. and Veljković, Vlada B. and Stamenković, Olivera S.",
year = "2020",
abstract = "The catalytic activity of the walnut shell ash was investigated in the biodiesel production by the sunflower oil methanolysis. The catalyst was characterized by the TG-DTA, XRD, Hg porosimetry, N2 physisorption, SEM, and Hammett method. In addition, the effects of the catalyst loading and the methanol-to-oil molar ratio on the methyl esters synthesis were tested at the reaction temperature of 60 °C. The walnut shell ash provided a very fast reaction and a high FAME content (over 98%). As the reaction occurred in the absence of triacylglycerols mass transfer limitation, the pseudo-first-order model was employed for describing the kinetics of the reaction. The catalyst was successfully reused four times after the regeneration of the catalytic activity by recalcination at 800 °C.",
publisher = "Elsevier",
journal = "Renewable Energy",
title = "Valorization of walnut shell ash as a catalyst for biodiesel production",
pages = "1033-1043",
volume = "147",
doi = "10.1016/j.renene.2019.09.056",
url = "https://hdl.handle.net/21.15107/rcub_dais_6717"
}
Miladinović, M. R., Zdujić, M., Veljović, Đ., Krstić, J. B., Banković Ilić, I. B., Veljković, V. B.,& Stamenković, O. S.. (2020). Valorization of walnut shell ash as a catalyst for biodiesel production. in Renewable Energy
Elsevier., 147, 1033-1043.
https://doi.org/10.1016/j.renene.2019.09.056
https://hdl.handle.net/21.15107/rcub_dais_6717
Miladinović MR, Zdujić M, Veljović Đ, Krstić JB, Banković Ilić IB, Veljković VB, Stamenković OS. Valorization of walnut shell ash as a catalyst for biodiesel production. in Renewable Energy. 2020;147:1033-1043.
doi:10.1016/j.renene.2019.09.056
https://hdl.handle.net/21.15107/rcub_dais_6717 .
Miladinović, Marija R., Zdujić, Miodrag, Veljović, Đorđe, Krstić, Jugoslav B., Banković Ilić, Ivana B., Veljković, Vlada B., Stamenković, Olivera S., "Valorization of walnut shell ash as a catalyst for biodiesel production" in Renewable Energy, 147 (2020):1033-1043,
https://doi.org/10.1016/j.renene.2019.09.056 .,
https://hdl.handle.net/21.15107/rcub_dais_6717 .
26
23
32

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 .
14
12
14

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 .
14
12
13

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
21

Polyvinyl alcohol PVA with poly ethylene Glycol PEG added as a binder for the powder compaction

Labus, Nebojša; Marković, Smilja; Nikolić, Maria Vesna; Krstić, Jugoslav; Pavlović, Vladimir B.

(Belgrade : Serbian Ceramic Society, 2018)

TY  - CONF
AU  - Labus, Nebojša
AU  - Marković, Smilja
AU  - Nikolić, Maria Vesna
AU  - Krstić, Jugoslav
AU  - Pavlović, Vladimir B.
PY  - 2018
UR  - https://dais.sanu.ac.rs/123456789/4099
AB  - During the compaction of the powder mixture of ZnO and Mn2O3 (MnCO3) and Fe2O3 compacts were find fragile for further handling. Poly vinyl alcohol PVA was used as a binder in an unusual 20% PVA content. We made as well 2% PVA with 0.6% Poly ethylene glycol PEG and 20% PVA with 6 % PEG. Binder was wrapped over the powder by suspension forming in the polymer water solution and drying afterwards until all water content evaporates. On the these obtained powders employed characterization techniques were: Fourier transformed Infra red FTIR spectra with ATR attenuated total reflection technique as well as differential thermal analysis DTA on the device with low temperature sensitivity and TEM transmition electron microscopy. All binder concentrations gave compacts with good mechanical properties, that can be handled with ease but with adding, a PEG as plasticizer the operating of the anvil and piston were extremely difficult due to friction.
PB  - Belgrade : Serbian Ceramic Society
C3  - Program and the Book of Abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application VII : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 17-19 September 2018
T1  - Polyvinyl alcohol PVA with poly ethylene Glycol PEG added as a binder for the powder compaction
SP  - 83
EP  - 83
UR  - https://hdl.handle.net/21.15107/rcub_dais_4099
ER  - 
@conference{
author = "Labus, Nebojša and Marković, Smilja and Nikolić, Maria Vesna and Krstić, Jugoslav and Pavlović, Vladimir B.",
year = "2018",
abstract = "During the compaction of the powder mixture of ZnO and Mn2O3 (MnCO3) and Fe2O3 compacts were find fragile for further handling. Poly vinyl alcohol PVA was used as a binder in an unusual 20% PVA content. We made as well 2% PVA with 0.6% Poly ethylene glycol PEG and 20% PVA with 6 % PEG. Binder was wrapped over the powder by suspension forming in the polymer water solution and drying afterwards until all water content evaporates. On the these obtained powders employed characterization techniques were: Fourier transformed Infra red FTIR spectra with ATR attenuated total reflection technique as well as differential thermal analysis DTA on the device with low temperature sensitivity and TEM transmition electron microscopy. All binder concentrations gave compacts with good mechanical properties, that can be handled with ease but with adding, a PEG as plasticizer the operating of the anvil and piston were extremely difficult due to friction.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Program and the Book of Abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application VII : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 17-19 September 2018",
title = "Polyvinyl alcohol PVA with poly ethylene Glycol PEG added as a binder for the powder compaction",
pages = "83-83",
url = "https://hdl.handle.net/21.15107/rcub_dais_4099"
}
Labus, N., Marković, S., Nikolić, M. V., Krstić, J.,& Pavlović, V. B.. (2018). Polyvinyl alcohol PVA with poly ethylene Glycol PEG added as a binder for the powder compaction. in Program and the Book of Abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application VII : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 17-19 September 2018
Belgrade : Serbian Ceramic Society., 83-83.
https://hdl.handle.net/21.15107/rcub_dais_4099
Labus N, Marković S, Nikolić MV, Krstić J, Pavlović VB. Polyvinyl alcohol PVA with poly ethylene Glycol PEG added as a binder for the powder compaction. in Program and the Book of Abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application VII : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 17-19 September 2018. 2018;:83-83.
https://hdl.handle.net/21.15107/rcub_dais_4099 .
Labus, Nebojša, Marković, Smilja, Nikolić, Maria Vesna, Krstić, Jugoslav, Pavlović, Vladimir B., "Polyvinyl alcohol PVA with poly ethylene Glycol PEG added as a binder for the powder compaction" in Program and the Book of Abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application VII : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 17-19 September 2018 (2018):83-83,
https://hdl.handle.net/21.15107/rcub_dais_4099 .

Poly vinyl alcohol PVA with poly ethylene glycol PEG added as a binder for the powder compaction

Labus, Nebojša; Marković, Smilja; Nikolić, Maria Vesna; Krstić, Jugoslav; Pavlović, Vladimir B.

(2018)

TY  - CONF
AU  - Labus, Nebojša
AU  - Marković, Smilja
AU  - Nikolić, Maria Vesna
AU  - Krstić, Jugoslav
AU  - Pavlović, Vladimir B.
PY  - 2018
UR  - https://dais.sanu.ac.rs/123456789/4065
T1  - Poly vinyl alcohol PVA with poly ethylene glycol PEG added as a binder for the powder compaction
UR  - https://hdl.handle.net/21.15107/rcub_dais_4065
ER  - 
@conference{
author = "Labus, Nebojša and Marković, Smilja and Nikolić, Maria Vesna and Krstić, Jugoslav and Pavlović, Vladimir B.",
year = "2018",
title = "Poly vinyl alcohol PVA with poly ethylene glycol PEG added as a binder for the powder compaction",
url = "https://hdl.handle.net/21.15107/rcub_dais_4065"
}
Labus, N., Marković, S., Nikolić, M. V., Krstić, J.,& Pavlović, V. B.. (2018). Poly vinyl alcohol PVA with poly ethylene glycol PEG added as a binder for the powder compaction. .
https://hdl.handle.net/21.15107/rcub_dais_4065
Labus N, Marković S, Nikolić MV, Krstić J, Pavlović VB. Poly vinyl alcohol PVA with poly ethylene glycol PEG added as a binder for the powder compaction. 2018;.
https://hdl.handle.net/21.15107/rcub_dais_4065 .
Labus, Nebojša, Marković, Smilja, Nikolić, Maria Vesna, Krstić, Jugoslav, Pavlović, Vladimir B., "Poly vinyl alcohol PVA with poly ethylene glycol PEG added as a binder for the powder compaction" (2018),
https://hdl.handle.net/21.15107/rcub_dais_4065 .

The influence of mechanical activation on structural evolution of nanocrystalline SrTiO3 powders

Živojinović, Jelena; Pavlović, Vera P.; Kosanović, Darko; Marković, Smilja; Krstić, Jugoslav; Blagojević, Vladimir A.; Pavlović, Vladimir B.

(Elsevier, 2017)

TY  - JOUR
AU  - Živojinović, Jelena
AU  - Pavlović, Vera P.
AU  - Kosanović, Darko
AU  - Marković, Smilja
AU  - Krstić, Jugoslav
AU  - Blagojević, Vladimir A.
AU  - Pavlović, Vladimir B.
PY  - 2017
UR  - https://dais.sanu.ac.rs/123456789/4617
AB  - Structural changes caused by mechanical activation of SrTiO3 powders were investigated using a variety of methods. Average crystallite size continuously decreased with increased activation time to around 20 nm after 120 min activation, while mesopore volume and specific surface area increased accordingly. Higher activation times lead to increased agglomeration of nanoparticles to form agglomerates of around 2 μm in size, ultimately producing a relatively stable powder, which exhibits lower microstrain than powders activated for shorter periods of time. Raman spectroscopy shows that the behavior of TO2 and TO4 modes is consistent with a decrease in particle size, while behavior of the nonpolar TO3 mode is markedly different, indicating relaxation of the inversion symmetry in polycrystalline SrTiO3. UV-VIS spectra show that mechanical activation has negligible effect on SrTiO3, with a slight shift caused by TiO2 contamination due to presence of air. Other than this, the mechanical activation process preserves the chemical purity of the initial powder.
PB  - Elsevier
T2  - Journal of Alloys and Compounds
T1  - The influence of mechanical activation on structural evolution of nanocrystalline SrTiO3 powders
SP  - 863
EP  - 870
VL  - 695
DO  - 10.1016/j.jallcom.2016.10.159
UR  - https://hdl.handle.net/21.15107/rcub_dais_4617
ER  - 
@article{
author = "Živojinović, Jelena and Pavlović, Vera P. and Kosanović, Darko and Marković, Smilja and Krstić, Jugoslav and Blagojević, Vladimir A. and Pavlović, Vladimir B.",
year = "2017",
abstract = "Structural changes caused by mechanical activation of SrTiO3 powders were investigated using a variety of methods. Average crystallite size continuously decreased with increased activation time to around 20 nm after 120 min activation, while mesopore volume and specific surface area increased accordingly. Higher activation times lead to increased agglomeration of nanoparticles to form agglomerates of around 2 μm in size, ultimately producing a relatively stable powder, which exhibits lower microstrain than powders activated for shorter periods of time. Raman spectroscopy shows that the behavior of TO2 and TO4 modes is consistent with a decrease in particle size, while behavior of the nonpolar TO3 mode is markedly different, indicating relaxation of the inversion symmetry in polycrystalline SrTiO3. UV-VIS spectra show that mechanical activation has negligible effect on SrTiO3, with a slight shift caused by TiO2 contamination due to presence of air. Other than this, the mechanical activation process preserves the chemical purity of the initial powder.",
publisher = "Elsevier",
journal = "Journal of Alloys and Compounds",
title = "The influence of mechanical activation on structural evolution of nanocrystalline SrTiO3 powders",
pages = "863-870",
volume = "695",
doi = "10.1016/j.jallcom.2016.10.159",
url = "https://hdl.handle.net/21.15107/rcub_dais_4617"
}
Živojinović, J., Pavlović, V. P., Kosanović, D., Marković, S., Krstić, J., Blagojević, V. A.,& Pavlović, V. B.. (2017). The influence of mechanical activation on structural evolution of nanocrystalline SrTiO3 powders. in Journal of Alloys and Compounds
Elsevier., 695, 863-870.
https://doi.org/10.1016/j.jallcom.2016.10.159
https://hdl.handle.net/21.15107/rcub_dais_4617
Živojinović J, Pavlović VP, Kosanović D, Marković S, Krstić J, Blagojević VA, Pavlović VB. The influence of mechanical activation on structural evolution of nanocrystalline SrTiO3 powders. in Journal of Alloys and Compounds. 2017;695:863-870.
doi:10.1016/j.jallcom.2016.10.159
https://hdl.handle.net/21.15107/rcub_dais_4617 .
Živojinović, Jelena, Pavlović, Vera P., Kosanović, Darko, Marković, Smilja, Krstić, Jugoslav, Blagojević, Vladimir A., Pavlović, Vladimir B., "The influence of mechanical activation on structural evolution of nanocrystalline SrTiO3 powders" in Journal of Alloys and Compounds, 695 (2017):863-870,
https://doi.org/10.1016/j.jallcom.2016.10.159 .,
https://hdl.handle.net/21.15107/rcub_dais_4617 .
12
11
15

The influence of mechanical activation on structural evolution of nanocrystalline SrTiO3 powders

Živojinović, Jelena; Pavlović, Vera P.; Kosanović, Darko; Marković, Smilja; Krstić, Jugoslav; Blagojević, Vladimir A.; Pavlović, Vladimir B.

(Elsevier, 2017)

TY  - JOUR
AU  - Živojinović, Jelena
AU  - Pavlović, Vera P.
AU  - Kosanović, Darko
AU  - Marković, Smilja
AU  - Krstić, Jugoslav
AU  - Blagojević, Vladimir A.
AU  - Pavlović, Vladimir B.
PY  - 2017
UR  - https://dais.sanu.ac.rs/123456789/2355
AB  - Structural changes caused by mechanical activation of SrTiO3 powders were investigated using a variety of methods. Average crystallite size continuously decreased with increased activation time to around 20 nm after 120 min activation, while mesopore volume and specific surface area increased accordingly. Higher activation times lead to increased agglomeration of nanoparticles to form agglomerates of around 2 μm in size, ultimately producing a relatively stable powder, which exhibits lower microstrain than powders activated for shorter periods of time. Raman spectroscopy shows that the behavior of TO2 and TO4 modes is consistent with a decrease in particle size, while behavior of the nonpolar TO3 mode is markedly different, indicating relaxation of the inversion symmetry in polycrystalline SrTiO3. UV-VIS spectra show that mechanical activation has negligible effect on SrTiO3, with a slight shift caused by TiO2 contamination due to presence of air. Other than this, the mechanical activation process preserves the chemical purity of the initial powder.
PB  - Elsevier
T2  - Journal of Alloys and Compounds
T1  - The influence of mechanical activation on structural evolution of nanocrystalline SrTiO3 powders
SP  - 863
EP  - 870
VL  - 695
DO  - 10.1016/j.jallcom.2016.10.159
UR  - https://hdl.handle.net/21.15107/rcub_dais_2355
ER  - 
@article{
author = "Živojinović, Jelena and Pavlović, Vera P. and Kosanović, Darko and Marković, Smilja and Krstić, Jugoslav and Blagojević, Vladimir A. and Pavlović, Vladimir B.",
year = "2017",
abstract = "Structural changes caused by mechanical activation of SrTiO3 powders were investigated using a variety of methods. Average crystallite size continuously decreased with increased activation time to around 20 nm after 120 min activation, while mesopore volume and specific surface area increased accordingly. Higher activation times lead to increased agglomeration of nanoparticles to form agglomerates of around 2 μm in size, ultimately producing a relatively stable powder, which exhibits lower microstrain than powders activated for shorter periods of time. Raman spectroscopy shows that the behavior of TO2 and TO4 modes is consistent with a decrease in particle size, while behavior of the nonpolar TO3 mode is markedly different, indicating relaxation of the inversion symmetry in polycrystalline SrTiO3. UV-VIS spectra show that mechanical activation has negligible effect on SrTiO3, with a slight shift caused by TiO2 contamination due to presence of air. Other than this, the mechanical activation process preserves the chemical purity of the initial powder.",
publisher = "Elsevier",
journal = "Journal of Alloys and Compounds",
title = "The influence of mechanical activation on structural evolution of nanocrystalline SrTiO3 powders",
pages = "863-870",
volume = "695",
doi = "10.1016/j.jallcom.2016.10.159",
url = "https://hdl.handle.net/21.15107/rcub_dais_2355"
}
Živojinović, J., Pavlović, V. P., Kosanović, D., Marković, S., Krstić, J., Blagojević, V. A.,& Pavlović, V. B.. (2017). The influence of mechanical activation on structural evolution of nanocrystalline SrTiO3 powders. in Journal of Alloys and Compounds
Elsevier., 695, 863-870.
https://doi.org/10.1016/j.jallcom.2016.10.159
https://hdl.handle.net/21.15107/rcub_dais_2355
Živojinović J, Pavlović VP, Kosanović D, Marković S, Krstić J, Blagojević VA, Pavlović VB. The influence of mechanical activation on structural evolution of nanocrystalline SrTiO3 powders. in Journal of Alloys and Compounds. 2017;695:863-870.
doi:10.1016/j.jallcom.2016.10.159
https://hdl.handle.net/21.15107/rcub_dais_2355 .
Živojinović, Jelena, Pavlović, Vera P., Kosanović, Darko, Marković, Smilja, Krstić, Jugoslav, Blagojević, Vladimir A., Pavlović, Vladimir B., "The influence of mechanical activation on structural evolution of nanocrystalline SrTiO3 powders" in Journal of Alloys and Compounds, 695 (2017):863-870,
https://doi.org/10.1016/j.jallcom.2016.10.159 .,
https://hdl.handle.net/21.15107/rcub_dais_2355 .
12
11
15

Structural investigation of mechanically activated ZnO powder

Peleš, Adriana; Pavlović, Vera P.; Filipović, Suzana; Obradović, Nina; Mančić, Lidija; Krstić, Jugoslav; Mitrić, Miodrag; Vlahović, Branislav; Rašić, Goran; Kosanović, Darko; Pavlović, Vladimir B.

(Elsevier, 2015)

TY  - JOUR
AU  - Peleš, Adriana
AU  - Pavlović, Vera P.
AU  - Filipović, Suzana
AU  - Obradović, Nina
AU  - Mančić, Lidija
AU  - Krstić, Jugoslav
AU  - Mitrić, Miodrag
AU  - Vlahović, Branislav
AU  - Rašić, Goran
AU  - Kosanović, Darko
AU  - Pavlović, Vladimir B.
PY  - 2015
UR  - https://dais.sanu.ac.rs/123456789/4673
AB  - Abstract Commercially available ZnO powder was mechanically activated in a planetary ball mill. In order to investigate the specific surface area, pore volume and microstructure of non-activated and mechanically activated ZnO powders the authors performed N2 physisorption, SEM and TEM. Crystallite size and lattice microstrain were analyzed by X-ray diffraction method. XRD patterns indicate that peak intensities are getting lower and expend with activation time. The reduction in crystallite size and increasing of lattice microstrain with prolonged milling time were determined applying the Rietveld's method. The difference between non-activated and the activated powder has been also observed by X-ray photoelectron spectroscopy (XPS). XPS is used for investigating the chemical bonding of ZnO powder by analyzing the energy of photoelectrons. The lattice vibration spectra were obtained using Raman spectroscopy. In Raman spectra some changes along with atypical resonant scattering were noticed, which were caused by mechanical activation. © 2015 Published by Elsevier B.V.
PB  - Elsevier
T2  - Journal of Alloys and Compounds
T1  - Structural investigation of mechanically activated ZnO powder
SP  - 971
EP  - 979
VL  - 648
DO  - 10.1016/j.jallcom.2015.06.247
UR  - https://hdl.handle.net/21.15107/rcub_dais_4673
ER  - 
@article{
author = "Peleš, Adriana and Pavlović, Vera P. and Filipović, Suzana and Obradović, Nina and Mančić, Lidija and Krstić, Jugoslav and Mitrić, Miodrag and Vlahović, Branislav and Rašić, Goran and Kosanović, Darko and Pavlović, Vladimir B.",
year = "2015",
abstract = "Abstract Commercially available ZnO powder was mechanically activated in a planetary ball mill. In order to investigate the specific surface area, pore volume and microstructure of non-activated and mechanically activated ZnO powders the authors performed N2 physisorption, SEM and TEM. Crystallite size and lattice microstrain were analyzed by X-ray diffraction method. XRD patterns indicate that peak intensities are getting lower and expend with activation time. The reduction in crystallite size and increasing of lattice microstrain with prolonged milling time were determined applying the Rietveld's method. The difference between non-activated and the activated powder has been also observed by X-ray photoelectron spectroscopy (XPS). XPS is used for investigating the chemical bonding of ZnO powder by analyzing the energy of photoelectrons. The lattice vibration spectra were obtained using Raman spectroscopy. In Raman spectra some changes along with atypical resonant scattering were noticed, which were caused by mechanical activation. © 2015 Published by Elsevier B.V.",
publisher = "Elsevier",
journal = "Journal of Alloys and Compounds",
title = "Structural investigation of mechanically activated ZnO powder",
pages = "971-979",
volume = "648",
doi = "10.1016/j.jallcom.2015.06.247",
url = "https://hdl.handle.net/21.15107/rcub_dais_4673"
}
Peleš, A., Pavlović, V. P., Filipović, S., Obradović, N., Mančić, L., Krstić, J., Mitrić, M., Vlahović, B., Rašić, G., Kosanović, D.,& Pavlović, V. B.. (2015). Structural investigation of mechanically activated ZnO powder. in Journal of Alloys and Compounds
Elsevier., 648, 971-979.
https://doi.org/10.1016/j.jallcom.2015.06.247
https://hdl.handle.net/21.15107/rcub_dais_4673
Peleš A, Pavlović VP, Filipović S, Obradović N, Mančić L, Krstić J, Mitrić M, Vlahović B, Rašić G, Kosanović D, Pavlović VB. Structural investigation of mechanically activated ZnO powder. in Journal of Alloys and Compounds. 2015;648:971-979.
doi:10.1016/j.jallcom.2015.06.247
https://hdl.handle.net/21.15107/rcub_dais_4673 .
Peleš, Adriana, Pavlović, Vera P., Filipović, Suzana, Obradović, Nina, Mančić, Lidija, Krstić, Jugoslav, Mitrić, Miodrag, Vlahović, Branislav, Rašić, Goran, Kosanović, Darko, Pavlović, Vladimir B., "Structural investigation of mechanically activated ZnO powder" in Journal of Alloys and Compounds, 648 (2015):971-979,
https://doi.org/10.1016/j.jallcom.2015.06.247 .,
https://hdl.handle.net/21.15107/rcub_dais_4673 .
9
9
10

Structural investigation of mechanically activated ZnO powder

Peleš, Adriana; Pavlović, Vera P.; Filipović, Suzana; Obradović, Nina; Mančić, Lidija; Krstić, Jugoslav; Mitrić, Miodrag; Vlahović, Branislav; Rašić, Goran; Kosanović, Darko; Pavlović, Vladimir B.

(Elsevier, 2015)

TY  - JOUR
AU  - Peleš, Adriana
AU  - Pavlović, Vera P.
AU  - Filipović, Suzana
AU  - Obradović, Nina
AU  - Mančić, Lidija
AU  - Krstić, Jugoslav
AU  - Mitrić, Miodrag
AU  - Vlahović, Branislav
AU  - Rašić, Goran
AU  - Kosanović, Darko
AU  - Pavlović, Vladimir B.
PY  - 2015
UR  - https://dais.sanu.ac.rs/123456789/3521
AB  - Abstract Commercially available ZnO powder was mechanically activated in a planetary ball mill. In order to investigate the specific surface area, pore volume and microstructure of non-activated and mechanically activated ZnO powders the authors performed N2 physisorption, SEM and TEM. Crystallite size and lattice microstrain were analyzed by X-ray diffraction method. XRD patterns indicate that peak intensities are getting lower and expend with activation time. The reduction in crystallite size and increasing of lattice microstrain with prolonged milling time were determined applying the Rietveld's method. The difference between non-activated and the activated powder has been also observed by X-ray photoelectron spectroscopy (XPS). XPS is used for investigating the chemical bonding of ZnO powder by analyzing the energy of photoelectrons. The lattice vibration spectra were obtained using Raman spectroscopy. In Raman spectra some changes along with atypical resonant scattering were noticed, which were caused by mechanical activation. © 2015 Published by Elsevier B.V.
PB  - Elsevier
T2  - Journal of Alloys and Compounds
T1  - Structural investigation of mechanically activated ZnO powder
SP  - 971
EP  - 979
VL  - 648
DO  - 10.1016/j.jallcom.2015.06.247
UR  - https://hdl.handle.net/21.15107/rcub_dais_3521
ER  - 
@article{
author = "Peleš, Adriana and Pavlović, Vera P. and Filipović, Suzana and Obradović, Nina and Mančić, Lidija and Krstić, Jugoslav and Mitrić, Miodrag and Vlahović, Branislav and Rašić, Goran and Kosanović, Darko and Pavlović, Vladimir B.",
year = "2015",
abstract = "Abstract Commercially available ZnO powder was mechanically activated in a planetary ball mill. In order to investigate the specific surface area, pore volume and microstructure of non-activated and mechanically activated ZnO powders the authors performed N2 physisorption, SEM and TEM. Crystallite size and lattice microstrain were analyzed by X-ray diffraction method. XRD patterns indicate that peak intensities are getting lower and expend with activation time. The reduction in crystallite size and increasing of lattice microstrain with prolonged milling time were determined applying the Rietveld's method. The difference between non-activated and the activated powder has been also observed by X-ray photoelectron spectroscopy (XPS). XPS is used for investigating the chemical bonding of ZnO powder by analyzing the energy of photoelectrons. The lattice vibration spectra were obtained using Raman spectroscopy. In Raman spectra some changes along with atypical resonant scattering were noticed, which were caused by mechanical activation. © 2015 Published by Elsevier B.V.",
publisher = "Elsevier",
journal = "Journal of Alloys and Compounds",
title = "Structural investigation of mechanically activated ZnO powder",
pages = "971-979",
volume = "648",
doi = "10.1016/j.jallcom.2015.06.247",
url = "https://hdl.handle.net/21.15107/rcub_dais_3521"
}
Peleš, A., Pavlović, V. P., Filipović, S., Obradović, N., Mančić, L., Krstić, J., Mitrić, M., Vlahović, B., Rašić, G., Kosanović, D.,& Pavlović, V. B.. (2015). Structural investigation of mechanically activated ZnO powder. in Journal of Alloys and Compounds
Elsevier., 648, 971-979.
https://doi.org/10.1016/j.jallcom.2015.06.247
https://hdl.handle.net/21.15107/rcub_dais_3521
Peleš A, Pavlović VP, Filipović S, Obradović N, Mančić L, Krstić J, Mitrić M, Vlahović B, Rašić G, Kosanović D, Pavlović VB. Structural investigation of mechanically activated ZnO powder. in Journal of Alloys and Compounds. 2015;648:971-979.
doi:10.1016/j.jallcom.2015.06.247
https://hdl.handle.net/21.15107/rcub_dais_3521 .
Peleš, Adriana, Pavlović, Vera P., Filipović, Suzana, Obradović, Nina, Mančić, Lidija, Krstić, Jugoslav, Mitrić, Miodrag, Vlahović, Branislav, Rašić, Goran, Kosanović, Darko, Pavlović, Vladimir B., "Structural investigation of mechanically activated ZnO powder" in Journal of Alloys and Compounds, 648 (2015):971-979,
https://doi.org/10.1016/j.jallcom.2015.06.247 .,
https://hdl.handle.net/21.15107/rcub_dais_3521 .
9
9
10

Kinetics of heterogeneous methanolysis of sunflower oil with CaO∙ZnO catalyst: Influence of different hydrodynamic conditions

Lukić, Ivana; Kesić, Željka; Maksimović, Svetolik; Zdujić, Miodrag; Krstić, Jugoslav; Skala, Dejan

(Belgrade: Association of the Chemical Engineers of Serbia, 2014)

TY  - JOUR
AU  - Lukić, Ivana
AU  - Kesić, Željka
AU  - Maksimović, Svetolik
AU  - Zdujić, Miodrag
AU  - Krstić, Jugoslav
AU  - Skala, Dejan
PY  - 2014
UR  - https://dais.sanu.ac.rs/123456789/655
AB  - The kinetics of heterogeneous methanolysis of sunflower oil was studied at 60°C using mechanochemically synthesized CaO∙ZnO as catalyst. Influence of agitation speed, catalyst amount and methanol to oil molar ratio on the rate of reaction was analyzed. The rate of the process depends on the two resistances - mass transfer of triglycerides to the catalyst surface and chemical reaction on the catalyst surface, which are defined as the values of the overall triglyceride volumetric mass transfer coefficient, kmt,TG, and the effective pseudo first-order reaction rate constant, k, respectively. These kinetic parameters actually determine the value of the apparent reaction rate constant, kapp, whose change with time is defined with the change of triglyceride (TG) conversion. The kinetic model was proposed and the model parameters determined. [Projekat Ministarstva nauke Republike Srbije, br. 45001]
PB  - Belgrade: Association of the Chemical Engineers of Serbia
T2  - Chemical Industry and Chemical Engineering Quarterly
T1  - Kinetics of heterogeneous methanolysis of sunflower oil with CaO∙ZnO catalyst: Influence of different hydrodynamic conditions
SP  - 425
EP  - 439
VL  - 20
IS  - 3
DO  - 10.2298/CICEQ130514025L
UR  - https://hdl.handle.net/21.15107/rcub_dais_655
ER  - 
@article{
author = "Lukić, Ivana and Kesić, Željka and Maksimović, Svetolik and Zdujić, Miodrag and Krstić, Jugoslav and Skala, Dejan",
year = "2014",
abstract = "The kinetics of heterogeneous methanolysis of sunflower oil was studied at 60°C using mechanochemically synthesized CaO∙ZnO as catalyst. Influence of agitation speed, catalyst amount and methanol to oil molar ratio on the rate of reaction was analyzed. The rate of the process depends on the two resistances - mass transfer of triglycerides to the catalyst surface and chemical reaction on the catalyst surface, which are defined as the values of the overall triglyceride volumetric mass transfer coefficient, kmt,TG, and the effective pseudo first-order reaction rate constant, k, respectively. These kinetic parameters actually determine the value of the apparent reaction rate constant, kapp, whose change with time is defined with the change of triglyceride (TG) conversion. The kinetic model was proposed and the model parameters determined. [Projekat Ministarstva nauke Republike Srbije, br. 45001]",
publisher = "Belgrade: Association of the Chemical Engineers of Serbia",
journal = "Chemical Industry and Chemical Engineering Quarterly",
title = "Kinetics of heterogeneous methanolysis of sunflower oil with CaO∙ZnO catalyst: Influence of different hydrodynamic conditions",
pages = "425-439",
volume = "20",
number = "3",
doi = "10.2298/CICEQ130514025L",
url = "https://hdl.handle.net/21.15107/rcub_dais_655"
}
Lukić, I., Kesić, Ž., Maksimović, S., Zdujić, M., Krstić, J.,& Skala, D.. (2014). Kinetics of heterogeneous methanolysis of sunflower oil with CaO∙ZnO catalyst: Influence of different hydrodynamic conditions. in Chemical Industry and Chemical Engineering Quarterly
Belgrade: Association of the Chemical Engineers of Serbia., 20(3), 425-439.
https://doi.org/10.2298/CICEQ130514025L
https://hdl.handle.net/21.15107/rcub_dais_655
Lukić I, Kesić Ž, Maksimović S, Zdujić M, Krstić J, Skala D. Kinetics of heterogeneous methanolysis of sunflower oil with CaO∙ZnO catalyst: Influence of different hydrodynamic conditions. in Chemical Industry and Chemical Engineering Quarterly. 2014;20(3):425-439.
doi:10.2298/CICEQ130514025L
https://hdl.handle.net/21.15107/rcub_dais_655 .
Lukić, Ivana, Kesić, Željka, Maksimović, Svetolik, Zdujić, Miodrag, Krstić, Jugoslav, Skala, Dejan, "Kinetics of heterogeneous methanolysis of sunflower oil with CaO∙ZnO catalyst: Influence of different hydrodynamic conditions" in Chemical Industry and Chemical Engineering Quarterly, 20, no. 3 (2014):425-439,
https://doi.org/10.2298/CICEQ130514025L .,
https://hdl.handle.net/21.15107/rcub_dais_655 .
22
23
28

The Morphological Characterization of Mechanically Activated ZnO Powder

Peleš, Adriana; Filipović, Suzana; Obradović, Nina; Krstić, Jugoslav; Pavlović, Vladimir B.

(Belgrade : Serbian Ceramic Society, 2014)

TY  - CONF
AU  - Peleš, Adriana
AU  - Filipović, Suzana
AU  - Obradović, Nina
AU  - Krstić, Jugoslav
AU  - Pavlović, Vladimir B.
PY  - 2014
UR  - https://dais.sanu.ac.rs/123456789/606
AB  - The authors investigated the morphological characteristics of mechanically activated ZnO powder. ZnO powder was mechanically activated for 2, 5, 10 and 30 minutes in a planetary ball mill. Mechanical activation introduces lattice disorder and defects into ZnO hexagonal wurtzite structure. In order to determine specific surface area and pore volume, we performed N2 porosimetry and SEM in order to investigate the microstructure of non-activated and mechanically activated ZnO powders. Using Kubelka-Munk function, UV-Vis spectra showed the reducing in band gap with activation time. ZnO powder activated for 5 minutes has the narrowest band gap.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts / III Serbian Ceramic Society Conference, 29th September - 1st October, Belgrade, 2014
T1  - The Morphological Characterization of Mechanically Activated ZnO Powder
SP  - 92
EP  - 92
UR  - https://hdl.handle.net/21.15107/rcub_dais_606
ER  - 
@conference{
author = "Peleš, Adriana and Filipović, Suzana and Obradović, Nina and Krstić, Jugoslav and Pavlović, Vladimir B.",
year = "2014",
abstract = "The authors investigated the morphological characteristics of mechanically activated ZnO powder. ZnO powder was mechanically activated for 2, 5, 10 and 30 minutes in a planetary ball mill. Mechanical activation introduces lattice disorder and defects into ZnO hexagonal wurtzite structure. In order to determine specific surface area and pore volume, we performed N2 porosimetry and SEM in order to investigate the microstructure of non-activated and mechanically activated ZnO powders. Using Kubelka-Munk function, UV-Vis spectra showed the reducing in band gap with activation time. ZnO powder activated for 5 minutes has the narrowest band gap.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts / III Serbian Ceramic Society Conference, 29th September - 1st October, Belgrade, 2014",
title = "The Morphological Characterization of Mechanically Activated ZnO Powder",
pages = "92-92",
url = "https://hdl.handle.net/21.15107/rcub_dais_606"
}
Peleš, A., Filipović, S., Obradović, N., Krstić, J.,& Pavlović, V. B.. (2014). The Morphological Characterization of Mechanically Activated ZnO Powder. in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts / III Serbian Ceramic Society Conference, 29th September - 1st October, Belgrade, 2014
Belgrade : Serbian Ceramic Society., 92-92.
https://hdl.handle.net/21.15107/rcub_dais_606
Peleš A, Filipović S, Obradović N, Krstić J, Pavlović VB. The Morphological Characterization of Mechanically Activated ZnO Powder. in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts / III Serbian Ceramic Society Conference, 29th September - 1st October, Belgrade, 2014. 2014;:92-92.
https://hdl.handle.net/21.15107/rcub_dais_606 .
Peleš, Adriana, Filipović, Suzana, Obradović, Nina, Krstić, Jugoslav, Pavlović, Vladimir B., "The Morphological Characterization of Mechanically Activated ZnO Powder" in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts / III Serbian Ceramic Society Conference, 29th September - 1st October, Belgrade, 2014 (2014):92-92,
https://hdl.handle.net/21.15107/rcub_dais_606 .

Density of the ZnTiO3 nanopowder as a loose powder and as a compact obtained by different methods

Labus, Nebojša; Krstić, Jugoslav; Peleš, Adriana; Živojinović, Jelena; Nikolić, Maria Vesna

(Belgrade : Serbian Ceramic Society, 2013)

TY  - CONF
AU  - Labus, Nebojša
AU  - Krstić, Jugoslav
AU  - Peleš, Adriana
AU  - Živojinović, Jelena
AU  - Nikolić, Maria Vesna
PY  - 2013
UR  - https://dais.sanu.ac.rs/123456789/411
AB  - Nanopowder density, as well as compact density, is due to powder particle size, different in their values, compared to micron powders. Also, the technique used for density determination induces large mutual value discrepancies. Scanning electron micrographs of as received powder are presented as an illustration of the shape and size of powder particles and agglomerates. The density of the loose powder pretreated differently was determined using mercury porosimetry and He pycnometry. The methods used for determining the apparent density of the compacts were pycnometry with water as the wetting liquid, mercury porosimetry and also a new approach using a combination of mercury pycnometry along with nitrogen adsorption. Bulk densities of compacts were determined by dimension measurement and mercury pycnometry. Conclusions about nanopowder usage as a charge for dry compaction as well as the most appropriate way for the determination of compact and powder densities are shown.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade
T1  - Density of the ZnTiO3 nanopowder as a loose powder and as a compact obtained by different methods
SP  - 18
EP  - 18
UR  - https://hdl.handle.net/21.15107/rcub_dais_411
ER  - 
@conference{
author = "Labus, Nebojša and Krstić, Jugoslav and Peleš, Adriana and Živojinović, Jelena and Nikolić, Maria Vesna",
year = "2013",
abstract = "Nanopowder density, as well as compact density, is due to powder particle size, different in their values, compared to micron powders. Also, the technique used for density determination induces large mutual value discrepancies. Scanning electron micrographs of as received powder are presented as an illustration of the shape and size of powder particles and agglomerates. The density of the loose powder pretreated differently was determined using mercury porosimetry and He pycnometry. The methods used for determining the apparent density of the compacts were pycnometry with water as the wetting liquid, mercury porosimetry and also a new approach using a combination of mercury pycnometry along with nitrogen adsorption. Bulk densities of compacts were determined by dimension measurement and mercury pycnometry. Conclusions about nanopowder usage as a charge for dry compaction as well as the most appropriate way for the determination of compact and powder densities are shown.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade",
title = "Density of the ZnTiO3 nanopowder as a loose powder and as a compact obtained by different methods",
pages = "18-18",
url = "https://hdl.handle.net/21.15107/rcub_dais_411"
}
Labus, N., Krstić, J., Peleš, A., Živojinović, J.,& Nikolić, M. V.. (2013). Density of the ZnTiO3 nanopowder as a loose powder and as a compact obtained by different methods. in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade
Belgrade : Serbian Ceramic Society., 18-18.
https://hdl.handle.net/21.15107/rcub_dais_411
Labus N, Krstić J, Peleš A, Živojinović J, Nikolić MV. Density of the ZnTiO3 nanopowder as a loose powder and as a compact obtained by different methods. in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade. 2013;:18-18.
https://hdl.handle.net/21.15107/rcub_dais_411 .
Labus, Nebojša, Krstić, Jugoslav, Peleš, Adriana, Živojinović, Jelena, Nikolić, Maria Vesna, "Density of the ZnTiO3 nanopowder as a loose powder and as a compact obtained by different methods" in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade (2013):18-18,
https://hdl.handle.net/21.15107/rcub_dais_411 .

Kinetics of sunflower and used vegetable oil methanolysis catalyzed by CaO·ZnO

Lukić, Ivana; Kesić, Željka; Maksimović, Svetolik; Zdujić, Miodrag; Krstić, Jugoslav; Skala, Dejan

(Elsevier, 2013)

TY  - JOUR
AU  - Lukić, Ivana
AU  - Kesić, Željka
AU  - Maksimović, Svetolik
AU  - Zdujić, Miodrag
AU  - Krstić, Jugoslav
AU  - Skala, Dejan
PY  - 2013
UR  - https://dais.sanu.ac.rs/123456789/361
AB  - The kinetics of heterogeneous methanolysis of sunflower oil and used vegetable oil were studied at different temperatures, ranging from 60 to 96 °C using CaO·ZnO as catalyst (2 wt% on the basis of oil) and methanol to oil molar ratio of 10:1. Heterogeneous CaO·ZnO catalyst was synthesized by mechanochemical treatment of CaO and ZnO powder mixture with the addition of water necessary for the formation of corresponding mixed hydroxides, and their calcination at 700 °C in air. It was shown that kinetics of overall process could be described as pseudo-first order reaction. For the sunflower oil methanolysis at 60 and 70 °C, the rate of process at the beginning of biodiesel synthesis was limited by triglycerides mass transfer to the catalyst surface, and after that it is governed by the rate of chemical reaction at catalyst surface. At higher temperatures the influence of mass transfer resistance is almost negligible implying that the rate of chemical reaction determines the overall kinetic of biodiesel synthesis. In the case of used vegetable oil, the influence of mass transfer resistance was not observed either at higher or lower temperature. The kinetic model that describes the whole process well was proposed, and it comprises both the triglycerides mass transfer and chemical reaction controlled regime. The overall volumetric mass transfer coefficient was defined, assuming that it depends on the conversion of triglycerides.
PB  - Elsevier
T2  - Fuel
T1  - Kinetics of sunflower and used vegetable oil methanolysis catalyzed by CaO·ZnO
SP  - 367
EP  - 378
VL  - 113
DO  - 10.1016/j.fuel.2013.05.093
UR  - https://hdl.handle.net/21.15107/rcub_dais_361
ER  - 
@article{
author = "Lukić, Ivana and Kesić, Željka and Maksimović, Svetolik and Zdujić, Miodrag and Krstić, Jugoslav and Skala, Dejan",
year = "2013",
abstract = "The kinetics of heterogeneous methanolysis of sunflower oil and used vegetable oil were studied at different temperatures, ranging from 60 to 96 °C using CaO·ZnO as catalyst (2 wt% on the basis of oil) and methanol to oil molar ratio of 10:1. Heterogeneous CaO·ZnO catalyst was synthesized by mechanochemical treatment of CaO and ZnO powder mixture with the addition of water necessary for the formation of corresponding mixed hydroxides, and their calcination at 700 °C in air. It was shown that kinetics of overall process could be described as pseudo-first order reaction. For the sunflower oil methanolysis at 60 and 70 °C, the rate of process at the beginning of biodiesel synthesis was limited by triglycerides mass transfer to the catalyst surface, and after that it is governed by the rate of chemical reaction at catalyst surface. At higher temperatures the influence of mass transfer resistance is almost negligible implying that the rate of chemical reaction determines the overall kinetic of biodiesel synthesis. In the case of used vegetable oil, the influence of mass transfer resistance was not observed either at higher or lower temperature. The kinetic model that describes the whole process well was proposed, and it comprises both the triglycerides mass transfer and chemical reaction controlled regime. The overall volumetric mass transfer coefficient was defined, assuming that it depends on the conversion of triglycerides.",
publisher = "Elsevier",
journal = "Fuel",
title = "Kinetics of sunflower and used vegetable oil methanolysis catalyzed by CaO·ZnO",
pages = "367-378",
volume = "113",
doi = "10.1016/j.fuel.2013.05.093",
url = "https://hdl.handle.net/21.15107/rcub_dais_361"
}
Lukić, I., Kesić, Ž., Maksimović, S., Zdujić, M., Krstić, J.,& Skala, D.. (2013). Kinetics of sunflower and used vegetable oil methanolysis catalyzed by CaO·ZnO. in Fuel
Elsevier., 113, 367-378.
https://doi.org/10.1016/j.fuel.2013.05.093
https://hdl.handle.net/21.15107/rcub_dais_361
Lukić I, Kesić Ž, Maksimović S, Zdujić M, Krstić J, Skala D. Kinetics of sunflower and used vegetable oil methanolysis catalyzed by CaO·ZnO. in Fuel. 2013;113:367-378.
doi:10.1016/j.fuel.2013.05.093
https://hdl.handle.net/21.15107/rcub_dais_361 .
Lukić, Ivana, Kesić, Željka, Maksimović, Svetolik, Zdujić, Miodrag, Krstić, Jugoslav, Skala, Dejan, "Kinetics of sunflower and used vegetable oil methanolysis catalyzed by CaO·ZnO" in Fuel, 113 (2013):367-378,
https://doi.org/10.1016/j.fuel.2013.05.093 .,
https://hdl.handle.net/21.15107/rcub_dais_361 .
61
69
75

Structural characterization and electrical properties of sintered magnesium–titanate ceramics

Filipović, Suzana; Obradović, Nina; Krstić, Jugoslav; Šćepanović, M.; Pavlović, Vladimir B.; Paunović, Vesna; Ristić, Momčilo M.

(Elsevier, 2013)

TY  - JOUR
AU  - Filipović, Suzana
AU  - Obradović, Nina
AU  - Krstić, Jugoslav
AU  - Šćepanović, M.
AU  - Pavlović, Vladimir B.
AU  - Paunović, Vesna
AU  - Ristić, Momčilo M.
PY  - 2013
UR  - https://dais.sanu.ac.rs/123456789/348
AB  - In this article the influence of ball miling process on structure of MgO–TiO2 system, as well as the electrical properties of samples after sintering, was investigated. The mixtures of MgO–TiO2 powders were mechanically activated in a planetary ball mill for the time period from 0 to 120 min. The influence of mechanical activation and sintering on the lattice vibrational spectra was studied by Raman spectroscopy at room temperature. Structural investigations have been performed on produced powders. Nitrogen adsorption method was used to determine the BET specific surface area and pore size distribution. Unusual results have been obtained: specific surface area continuously decreased up to 40 min of activation and increased after that, reaching its minimum value of 5.5 m2/g. The Raman spectra of activated powders have shown that anatase modes have been decreasing in intensity and broadening as the time of activation extended. Also, the additional modes attributed to TiO2 II, srilankite and rutile phases started to appear as a consequence of activation. The small differences noticed in the Raman spectra of sintered samples have been explained by structural modification of MgTiO3 phase due to the presence of defects.

The effects of activation and sintering process on microstructure were investigated by scanning electron microscopy (SEM). The electrical measurements showed difference in dielectric constant (εr), loss tangent (tg δ) and specific resistance (ρ) as a function of time of mechanical treatment.
PB  - Elsevier
T2  - Journal of Alloys and Compounds
T1  - Structural characterization and electrical properties of sintered magnesium–titanate ceramics
SP  - 39
EP  - 44
VL  - 555
IS  - 5
DO  - 10.1016/j.jallcom.2012.12.040
UR  - https://hdl.handle.net/21.15107/rcub_dais_348
ER  - 
@article{
author = "Filipović, Suzana and Obradović, Nina and Krstić, Jugoslav and Šćepanović, M. and Pavlović, Vladimir B. and Paunović, Vesna and Ristić, Momčilo M.",
year = "2013",
abstract = "In this article the influence of ball miling process on structure of MgO–TiO2 system, as well as the electrical properties of samples after sintering, was investigated. The mixtures of MgO–TiO2 powders were mechanically activated in a planetary ball mill for the time period from 0 to 120 min. The influence of mechanical activation and sintering on the lattice vibrational spectra was studied by Raman spectroscopy at room temperature. Structural investigations have been performed on produced powders. Nitrogen adsorption method was used to determine the BET specific surface area and pore size distribution. Unusual results have been obtained: specific surface area continuously decreased up to 40 min of activation and increased after that, reaching its minimum value of 5.5 m2/g. The Raman spectra of activated powders have shown that anatase modes have been decreasing in intensity and broadening as the time of activation extended. Also, the additional modes attributed to TiO2 II, srilankite and rutile phases started to appear as a consequence of activation. The small differences noticed in the Raman spectra of sintered samples have been explained by structural modification of MgTiO3 phase due to the presence of defects.

The effects of activation and sintering process on microstructure were investigated by scanning electron microscopy (SEM). The electrical measurements showed difference in dielectric constant (εr), loss tangent (tg δ) and specific resistance (ρ) as a function of time of mechanical treatment.",
publisher = "Elsevier",
journal = "Journal of Alloys and Compounds",
title = "Structural characterization and electrical properties of sintered magnesium–titanate ceramics",
pages = "39-44",
volume = "555",
number = "5",
doi = "10.1016/j.jallcom.2012.12.040",
url = "https://hdl.handle.net/21.15107/rcub_dais_348"
}
Filipović, S., Obradović, N., Krstić, J., Šćepanović, M., Pavlović, V. B., Paunović, V.,& Ristić, M. M.. (2013). Structural characterization and electrical properties of sintered magnesium–titanate ceramics. in Journal of Alloys and Compounds
Elsevier., 555(5), 39-44.
https://doi.org/10.1016/j.jallcom.2012.12.040
https://hdl.handle.net/21.15107/rcub_dais_348
Filipović S, Obradović N, Krstić J, Šćepanović M, Pavlović VB, Paunović V, Ristić MM. Structural characterization and electrical properties of sintered magnesium–titanate ceramics. in Journal of Alloys and Compounds. 2013;555(5):39-44.
doi:10.1016/j.jallcom.2012.12.040
https://hdl.handle.net/21.15107/rcub_dais_348 .
Filipović, Suzana, Obradović, Nina, Krstić, Jugoslav, Šćepanović, M., Pavlović, Vladimir B., Paunović, Vesna, Ristić, Momčilo M., "Structural characterization and electrical properties of sintered magnesium–titanate ceramics" in Journal of Alloys and Compounds, 555, no. 5 (2013):39-44,
https://doi.org/10.1016/j.jallcom.2012.12.040 .,
https://hdl.handle.net/21.15107/rcub_dais_348 .
8
8
7

ZnTiO3 ceramic nanopowder microstructure changes during compaction

Labus, Nebojša; Krstić, Jugoslav; Marković, Smilja; Vasiljević Radović, Dana; Nikolić, Maria Vesna; Pavlović, V.

(Belgrade : International Institute for the Science of Sintering, 2013)

TY  - JOUR
AU  - Labus, Nebojša
AU  - Krstić, Jugoslav
AU  - Marković, Smilja
AU  - Vasiljević Radović, Dana
AU  - Nikolić, Maria Vesna
AU  - Pavlović, V.
PY  - 2013
UR  - https://dais.sanu.ac.rs/123456789/189
AB  - ZnTiO3 nanopowder as a constitutive component in compact production was primarily characterized. Scanning electron micrographs of as received powder were recorded. Mercury porosimetry and nitrogen adsorption were also performed on loose powder. Particle size distribution in a water powder suspension was determined with a laser particle size analyser. Compaction was performed on different pressures in a range from 100 to 400 MPa using the uniaxial double sided compaction technique without binder and lubricant. Micrographs of compacted specimens were obtained using scanning electron microscopy and atomic force microscopy. Pore size distribution was also determined by mercury porosimetry and nitrogen adsorption. Results revealed that with increasing pressure during compaction interagglomerate pores diminish in size until they reach some critical diameter related to the intra-agglomerate pore size.
PB  - Belgrade : International Institute for the Science of Sintering
T2  - Science of Sintering
T1  - ZnTiO3 ceramic nanopowder microstructure changes during compaction
SP  - 209
EP  - 221
VL  - 45
IS  - 2
DO  - 10.2298/SOS1302209L
UR  - https://hdl.handle.net/21.15107/rcub_dais_189
ER  - 
@article{
author = "Labus, Nebojša and Krstić, Jugoslav and Marković, Smilja and Vasiljević Radović, Dana and Nikolić, Maria Vesna and Pavlović, V.",
year = "2013",
abstract = "ZnTiO3 nanopowder as a constitutive component in compact production was primarily characterized. Scanning electron micrographs of as received powder were recorded. Mercury porosimetry and nitrogen adsorption were also performed on loose powder. Particle size distribution in a water powder suspension was determined with a laser particle size analyser. Compaction was performed on different pressures in a range from 100 to 400 MPa using the uniaxial double sided compaction technique without binder and lubricant. Micrographs of compacted specimens were obtained using scanning electron microscopy and atomic force microscopy. Pore size distribution was also determined by mercury porosimetry and nitrogen adsorption. Results revealed that with increasing pressure during compaction interagglomerate pores diminish in size until they reach some critical diameter related to the intra-agglomerate pore size.",
publisher = "Belgrade : International Institute for the Science of Sintering",
journal = "Science of Sintering",
title = "ZnTiO3 ceramic nanopowder microstructure changes during compaction",
pages = "209-221",
volume = "45",
number = "2",
doi = "10.2298/SOS1302209L",
url = "https://hdl.handle.net/21.15107/rcub_dais_189"
}
Labus, N., Krstić, J., Marković, S., Vasiljević Radović, D., Nikolić, M. V.,& Pavlović, V.. (2013). ZnTiO3 ceramic nanopowder microstructure changes during compaction. in Science of Sintering
Belgrade : International Institute for the Science of Sintering., 45(2), 209-221.
https://doi.org/10.2298/SOS1302209L
https://hdl.handle.net/21.15107/rcub_dais_189
Labus N, Krstić J, Marković S, Vasiljević Radović D, Nikolić MV, Pavlović V. ZnTiO3 ceramic nanopowder microstructure changes during compaction. in Science of Sintering. 2013;45(2):209-221.
doi:10.2298/SOS1302209L
https://hdl.handle.net/21.15107/rcub_dais_189 .
Labus, Nebojša, Krstić, Jugoslav, Marković, Smilja, Vasiljević Radović, Dana, Nikolić, Maria Vesna, Pavlović, V., "ZnTiO3 ceramic nanopowder microstructure changes during compaction" in Science of Sintering, 45, no. 2 (2013):209-221,
https://doi.org/10.2298/SOS1302209L .,
https://hdl.handle.net/21.15107/rcub_dais_189 .
4
4

Structural Changes, Dielectric and Ferroelectric Properties of Tribophysically Activated BaTiO3

Pavlović, Vera P.; Pavlović, Vladimir B.; Blanuša, Jovan; Branković, Goran; Spreitzer, M.; Krstić, Jugoslav

(Belgrade : Serbian Ceramic Society, 2012)

TY  - CONF
AU  - Pavlović, Vera P.
AU  - Pavlović, Vladimir B.
AU  - Blanuša, Jovan
AU  - Branković, Goran
AU  - Spreitzer, M.
AU  - Krstić, Jugoslav
PY  - 2012
UR  - https://dais.sanu.ac.rs/123456789/527
AB  - In order to obtain nanocrystalline material which can be used in MLCC production, the investigations of the influence of BaTiO3 powder tribophysical activation (TPA) on its structural changes, dielectric and ferroelectric properties have been performed. Microstructure development and crystal structure have been studied by mercury porosimetry method, SEM, EDS and X-ray powder diffraction analyses. The modifications of dielectric and ferroelectric properties of sintered samples have been examined and correlated with observed structural changes induced by TPA of starting powders. It has been found that dielectric and ferroelectric properties of tribophysically activated BaTiO3 could be tuned by controlling the grain size and lattice strain of activated nanostructured material.
PB  - Belgrade : Serbian Ceramic Society
C3  - The First Serbian Ceramic Society Conference "Advanced Ceramics and Application" May 10-11, 2012: Program and the Book of Abstracts
T1  - Structural Changes, Dielectric and Ferroelectric Properties of Tribophysically Activated BaTiO3
SP  - 25
EP  - 25
UR  - https://hdl.handle.net/21.15107/rcub_dais_527
ER  - 
@conference{
author = "Pavlović, Vera P. and Pavlović, Vladimir B. and Blanuša, Jovan and Branković, Goran and Spreitzer, M. and Krstić, Jugoslav",
year = "2012",
abstract = "In order to obtain nanocrystalline material which can be used in MLCC production, the investigations of the influence of BaTiO3 powder tribophysical activation (TPA) on its structural changes, dielectric and ferroelectric properties have been performed. Microstructure development and crystal structure have been studied by mercury porosimetry method, SEM, EDS and X-ray powder diffraction analyses. The modifications of dielectric and ferroelectric properties of sintered samples have been examined and correlated with observed structural changes induced by TPA of starting powders. It has been found that dielectric and ferroelectric properties of tribophysically activated BaTiO3 could be tuned by controlling the grain size and lattice strain of activated nanostructured material.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "The First Serbian Ceramic Society Conference "Advanced Ceramics and Application" May 10-11, 2012: Program and the Book of Abstracts",
title = "Structural Changes, Dielectric and Ferroelectric Properties of Tribophysically Activated BaTiO3",
pages = "25-25",
url = "https://hdl.handle.net/21.15107/rcub_dais_527"
}
Pavlović, V. P., Pavlović, V. B., Blanuša, J., Branković, G., Spreitzer, M.,& Krstić, J.. (2012). Structural Changes, Dielectric and Ferroelectric Properties of Tribophysically Activated BaTiO3. in The First Serbian Ceramic Society Conference "Advanced Ceramics and Application" May 10-11, 2012: Program and the Book of Abstracts
Belgrade : Serbian Ceramic Society., 25-25.
https://hdl.handle.net/21.15107/rcub_dais_527
Pavlović VP, Pavlović VB, Blanuša J, Branković G, Spreitzer M, Krstić J. Structural Changes, Dielectric and Ferroelectric Properties of Tribophysically Activated BaTiO3. in The First Serbian Ceramic Society Conference "Advanced Ceramics and Application" May 10-11, 2012: Program and the Book of Abstracts. 2012;:25-25.
https://hdl.handle.net/21.15107/rcub_dais_527 .
Pavlović, Vera P., Pavlović, Vladimir B., Blanuša, Jovan, Branković, Goran, Spreitzer, M., Krstić, Jugoslav, "Structural Changes, Dielectric and Ferroelectric Properties of Tribophysically Activated BaTiO3" in The First Serbian Ceramic Society Conference "Advanced Ceramics and Application" May 10-11, 2012: Program and the Book of Abstracts (2012):25-25,
https://hdl.handle.net/21.15107/rcub_dais_527 .

Structural characterization and electrical properties of sintered magnesium-titanate ceramics

Filipović, Suzana; Obradović, Nina; Krstić, Jugoslav; Šćepanović, M.; Pavlović, Vladimir B.; Paunović, Vesna; Ristić, Momčilo M.

(Belgrade : Materials Research Society of Serbia, 2012)

TY  - CONF
AU  - Filipović, Suzana
AU  - Obradović, Nina
AU  - Krstić, Jugoslav
AU  - Šćepanović, M.
AU  - Pavlović, Vladimir B.
AU  - Paunović, Vesna
AU  - Ristić, Momčilo M.
PY  - 2012
UR  - https://dais.sanu.ac.rs/123456789/442
AB  - In this article the influence of ball milling process on structure of MgO-TiO2 system, along with its influence on electrical properties of post-sintering samples, were investigated. Mixtures of MgO-TiO2 powders were mechanically activated in a planetary ball mill for time interval from 0 to 120 minutes. On thus obtained powders, structural investigations have been performed. N2 adsorption method was used to determine the BET specific surface area and pore size distribution. Unusual results were obtained: specific surface area continuously decreases up to 40 minutes of activation and after that increases, reaching its minimum value of 5.5 m2/g. The influence of mechanical activation on lattice vibration spectra was examined by Raman spectroscopy at room temperature. For sintered samples characterization, Raman scattering spectroscopy has been used. Very similar spectra for all samples were observed. Raman spectroscopy of sintered samples indicates a presence of two phases, while varieties in spectra were explained with different ratio of present phases. Effect of activation and sintering process on microstructure was investigated by scanning electron microscopy (SEM). Electrical measurements showed difference in dielectric constant (εr), loss tangent (tgδ) and specific resistance (ρ) as a function of time of mechanical treatment.
PB  - Belgrade : Materials Research Society of Serbia
C3  - The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts
T1  - Structural characterization and electrical properties of sintered magnesium-titanate ceramics
SP  - 80
EP  - 80
UR  - https://hdl.handle.net/21.15107/rcub_dais_442
ER  - 
@conference{
author = "Filipović, Suzana and Obradović, Nina and Krstić, Jugoslav and Šćepanović, M. and Pavlović, Vladimir B. and Paunović, Vesna and Ristić, Momčilo M.",
year = "2012",
abstract = "In this article the influence of ball milling process on structure of MgO-TiO2 system, along with its influence on electrical properties of post-sintering samples, were investigated. Mixtures of MgO-TiO2 powders were mechanically activated in a planetary ball mill for time interval from 0 to 120 minutes. On thus obtained powders, structural investigations have been performed. N2 adsorption method was used to determine the BET specific surface area and pore size distribution. Unusual results were obtained: specific surface area continuously decreases up to 40 minutes of activation and after that increases, reaching its minimum value of 5.5 m2/g. The influence of mechanical activation on lattice vibration spectra was examined by Raman spectroscopy at room temperature. For sintered samples characterization, Raman scattering spectroscopy has been used. Very similar spectra for all samples were observed. Raman spectroscopy of sintered samples indicates a presence of two phases, while varieties in spectra were explained with different ratio of present phases. Effect of activation and sintering process on microstructure was investigated by scanning electron microscopy (SEM). Electrical measurements showed difference in dielectric constant (εr), loss tangent (tgδ) and specific resistance (ρ) as a function of time of mechanical treatment.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts",
title = "Structural characterization and electrical properties of sintered magnesium-titanate ceramics",
pages = "80-80",
url = "https://hdl.handle.net/21.15107/rcub_dais_442"
}
Filipović, S., Obradović, N., Krstić, J., Šćepanović, M., Pavlović, V. B., Paunović, V.,& Ristić, M. M.. (2012). Structural characterization and electrical properties of sintered magnesium-titanate ceramics. in The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts
Belgrade : Materials Research Society of Serbia., 80-80.
https://hdl.handle.net/21.15107/rcub_dais_442
Filipović S, Obradović N, Krstić J, Šćepanović M, Pavlović VB, Paunović V, Ristić MM. Structural characterization and electrical properties of sintered magnesium-titanate ceramics. in The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts. 2012;:80-80.
https://hdl.handle.net/21.15107/rcub_dais_442 .
Filipović, Suzana, Obradović, Nina, Krstić, Jugoslav, Šćepanović, M., Pavlović, Vladimir B., Paunović, Vesna, Ristić, Momčilo M., "Structural characterization and electrical properties of sintered magnesium-titanate ceramics" in The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts (2012):80-80,
https://hdl.handle.net/21.15107/rcub_dais_442 .

Structural Investigation of Mechanically Activated Nanocrystalline BaTiO3 Powders

Pavlović, Vera P.; Krstić, Jugoslav; Šćepanović, M. J.; Dojčilović, Jablan R.; Minić, Dragica M.; Blanuša, Jovan; Stevanović, Suzana; Mitić, Vojislav V.; Pavlović, Vladimir B.

(Elsevier, 2011)

TY  - JOUR
AU  - Pavlović, Vera P.
AU  - Krstić, Jugoslav
AU  - Šćepanović, M. J.
AU  - Dojčilović, Jablan R.
AU  - Minić, Dragica M.
AU  - Blanuša, Jovan
AU  - Stevanović, Suzana
AU  - Mitić, Vojislav V.
AU  - Pavlović, Vladimir B.
PY  - 2011
UR  - https://dais.sanu.ac.rs/123456789/736
AB  - In this article, in order to obtain tetragonal nanocrystalline BaTiO3, structural investigations of mechanically activated BaTiO3 powder have been performed. A mercury porosimetry analysis and scanning electron microscopy method have been applied for determination of the specific pore volume, porosity and microstructure morphology of the samples. The lattice vibration spectra of nonactivated and activated powders, their phase composition, lattice microstrains and the mean size of coherently diffracting domains were examined by Raman spectroscopy and the X-ray powder diffraction method. The average crystal structure of obtained nanocrystalline powders, estimated from X-ray diffraction data, gave evidence of retained, but slightly sustained tetragonality of powders, even for particles as small as ∼30 nm. Raman spectroscopy also gave clear evidence for local tetragonal symmetries, in particular through the presence of a band at ∼307 cm−1.
PB  - Elsevier
T2  - Ceramics International
T1  - Structural Investigation of Mechanically Activated Nanocrystalline BaTiO3 Powders
SP  - 2513
EP  - 2518
VL  - 37
IS  - 7
DO  - 10.1016/j.ceramint.2011.03.064
UR  - https://hdl.handle.net/21.15107/rcub_dais_736
ER  - 
@article{
author = "Pavlović, Vera P. and Krstić, Jugoslav and Šćepanović, M. J. and Dojčilović, Jablan R. and Minić, Dragica M. and Blanuša, Jovan and Stevanović, Suzana and Mitić, Vojislav V. and Pavlović, Vladimir B.",
year = "2011",
abstract = "In this article, in order to obtain tetragonal nanocrystalline BaTiO3, structural investigations of mechanically activated BaTiO3 powder have been performed. A mercury porosimetry analysis and scanning electron microscopy method have been applied for determination of the specific pore volume, porosity and microstructure morphology of the samples. The lattice vibration spectra of nonactivated and activated powders, their phase composition, lattice microstrains and the mean size of coherently diffracting domains were examined by Raman spectroscopy and the X-ray powder diffraction method. The average crystal structure of obtained nanocrystalline powders, estimated from X-ray diffraction data, gave evidence of retained, but slightly sustained tetragonality of powders, even for particles as small as ∼30 nm. Raman spectroscopy also gave clear evidence for local tetragonal symmetries, in particular through the presence of a band at ∼307 cm−1.",
publisher = "Elsevier",
journal = "Ceramics International",
title = "Structural Investigation of Mechanically Activated Nanocrystalline BaTiO3 Powders",
pages = "2513-2518",
volume = "37",
number = "7",
doi = "10.1016/j.ceramint.2011.03.064",
url = "https://hdl.handle.net/21.15107/rcub_dais_736"
}
Pavlović, V. P., Krstić, J., Šćepanović, M. J., Dojčilović, J. R., Minić, D. M., Blanuša, J., Stevanović, S., Mitić, V. V.,& Pavlović, V. B.. (2011). Structural Investigation of Mechanically Activated Nanocrystalline BaTiO3 Powders. in Ceramics International
Elsevier., 37(7), 2513-2518.
https://doi.org/10.1016/j.ceramint.2011.03.064
https://hdl.handle.net/21.15107/rcub_dais_736
Pavlović VP, Krstić J, Šćepanović MJ, Dojčilović JR, Minić DM, Blanuša J, Stevanović S, Mitić VV, Pavlović VB. Structural Investigation of Mechanically Activated Nanocrystalline BaTiO3 Powders. in Ceramics International. 2011;37(7):2513-2518.
doi:10.1016/j.ceramint.2011.03.064
https://hdl.handle.net/21.15107/rcub_dais_736 .
Pavlović, Vera P., Krstić, Jugoslav, Šćepanović, M. J., Dojčilović, Jablan R., Minić, Dragica M., Blanuša, Jovan, Stevanović, Suzana, Mitić, Vojislav V., Pavlović, Vladimir B., "Structural Investigation of Mechanically Activated Nanocrystalline BaTiO3 Powders" in Ceramics International, 37, no. 7 (2011):2513-2518,
https://doi.org/10.1016/j.ceramint.2011.03.064 .,
https://hdl.handle.net/21.15107/rcub_dais_736 .
12
16
15