TY  - JOUR
AU  - Radović, Marko B.
AU  - Dohcevic-Mitrovic, Z.
AU  - Paunović, Novica M.
AU  - Bošković, Snežana B.
AU  - Tomić, Nataša
AU  - Tadić, Nenad
AU  - Belca, I.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/379
AB  - Plasmon-longitudinal-optical (LO) phonon interaction in pure and Nd-doped CeO2-y nanocrystals was investigated by measuring far-infrared reflectivity spectra in the 100-700 cm(-1) spectral range at room temperature. Analysis of the obtained results revealed that the presence of free charge carriers becomes significant with the particle size decrease to nanometer range and increase of lattice defects. The free charge carriers were found to be responsible for a plasmon mode which coupled strongly with two LO phonon modes of ceria. The presence of more pronounced low-frequency Drude tail and the screening of the phonon modes in Nd-doped CeO2-y nanocrystals implied that the Plasmon-LO phonon interaction increased with doping. Factorized and additive dielectric function models were applied to deduce about the coupled and decoupled LO phonon frequencies and the structure of the decoupled plasmon mode in pure and Nd-doped CeO2-y nanocrystals. These models were combined with Bruggeman effective medium approximation in order to properly describe the influence of porosity on the infrared reflectivity spectra. With increasing dopant content, the decoupled plasmon mode exhibited redshift and damping decrease implying that doping induced semiconductor-to-metalic state transition took place.
T2  - Journal of Physics. D: Applied Physics
T1  - Infrared study of plasmon-phonon coupling in pure and Nd-doped CeO2-y nanocrystals
VL  - 48
IS  - 6
DO  - 10.1088/0022-3727/48/6/065301
ER  - 

@article{
author = "Radović, Marko B. and Dohcevic-Mitrovic, Z. and Paunović, Novica M. and Bošković, Snežana B. and Tomić, Nataša and Tadić, Nenad and Belca, I.",
year = "2015",
abstract = "Plasmon-longitudinal-optical (LO) phonon interaction in pure and Nd-doped CeO2-y nanocrystals was investigated by measuring far-infrared reflectivity spectra in the 100-700 cm(-1) spectral range at room temperature. Analysis of the obtained results revealed that the presence of free charge carriers becomes significant with the particle size decrease to nanometer range and increase of lattice defects. The free charge carriers were found to be responsible for a plasmon mode which coupled strongly with two LO phonon modes of ceria. The presence of more pronounced low-frequency Drude tail and the screening of the phonon modes in Nd-doped CeO2-y nanocrystals implied that the Plasmon-LO phonon interaction increased with doping. Factorized and additive dielectric function models were applied to deduce about the coupled and decoupled LO phonon frequencies and the structure of the decoupled plasmon mode in pure and Nd-doped CeO2-y nanocrystals. These models were combined with Bruggeman effective medium approximation in order to properly describe the influence of porosity on the infrared reflectivity spectra. With increasing dopant content, the decoupled plasmon mode exhibited redshift and damping decrease implying that doping induced semiconductor-to-metalic state transition took place.",
journal = "Journal of Physics. D: Applied Physics",
title = "Infrared study of plasmon-phonon coupling in pure and Nd-doped CeO2-y nanocrystals",
volume = "48",
number = "6",
doi = "10.1088/0022-3727/48/6/065301"
}

Radović, M. B., Dohcevic-Mitrovic, Z., Paunović, N. M., Bošković, S. B., Tomić, N., Tadić, N.,& Belca, I.. (2015). Infrared study of plasmon-phonon coupling in pure and Nd-doped CeO2-y nanocrystals. in Journal of Physics. D: Applied Physics, 48(6).
https://doi.org/10.1088/0022-3727/48/6/065301

Radović MB, Dohcevic-Mitrovic Z, Paunović NM, Bošković SB, Tomić N, Tadić N, Belca I. Infrared study of plasmon-phonon coupling in pure and Nd-doped CeO2-y nanocrystals. in Journal of Physics. D: Applied Physics. 2015;48(6).
doi:10.1088/0022-3727/48/6/065301 .

Radović, Marko B., Dohcevic-Mitrovic, Z., Paunović, Novica M., Bošković, Snežana B., Tomić, Nataša, Tadić, Nenad, Belca, I., "Infrared study of plasmon-phonon coupling in pure and Nd-doped CeO2-y nanocrystals" in Journal of Physics. D: Applied Physics, 48, no. 6 (2015),
https://doi.org/10.1088/0022-3727/48/6/065301 . .

TY  - JOUR
AU  - Grujić-Brojčin, Mirjana
AU  - Armaković, Sanja J.
AU  - Tomić, Nataša
AU  - Abramović, Biljana F.
AU  - Golubavic, A.
AU  - Stojadinovic, B.
AU  - Kremenović, Aleksandar S.
AU  - Babić, Biljana M.
AU  - Dohcevic-Mitrovic, Z.
AU  - Šćepanović, Maja
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5881
AB  - The influence of La-doping in the range of 0.5-6.0 mol% on structural and morphological properties of TiO2 nanopowders synthesized by sol-gel routine has been investigated by XRPD, AFM, EDS and BET measurements, as well as Raman spectroscopy. The XRPD and Raman measurements have revealed the anatase phase as dominant in all nanopowders, with crystallite size decreasing from similar to 15 nm in pure TiO2 to similar to 12 nm in La-doped samples. The BET data suggest that all samples are fully mesoporous, with mean pore diameters in the range of similar to 6-8 nm. The specific surface area and the complexity of pore structure are greater in doped samples than in pure TiO2 sample. The spectroscopic ellipsometry has apparently shown that the band gap has been gradually increased with the increase of La content. The STM and STS techniques have been used successfully to evaluate the surface morphology and electronic properties of La-doped nanopowders. All investigated properties have been related to photocatalytic activity, tested in degradation of a metoprolol tartrate salt (0.05 mM), and induced by UV-radiation. All doped samples showed increased photocatalytic activity compared to pure TiO2, among which the 0.65 mol% La-doped sample appeared to be the most efficient. (C) 2013 Elsevier Inc. All rights reserved.
T2  - Materials Characterization
T1  - Surface modification of sol-gel synthesized TiO2 nanoparticles induced by La-doping
VL  - 88
SP  - 30
EP  - 41
DO  - 10.1016/j.matchar.2013.12.002
ER  - 

@article{
author = "Grujić-Brojčin, Mirjana and Armaković, Sanja J. and Tomić, Nataša and Abramović, Biljana F. and Golubavic, A. and Stojadinovic, B. and Kremenović, Aleksandar S. and Babić, Biljana M. and Dohcevic-Mitrovic, Z. and Šćepanović, Maja",
year = "2014",
abstract = "The influence of La-doping in the range of 0.5-6.0 mol% on structural and morphological properties of TiO2 nanopowders synthesized by sol-gel routine has been investigated by XRPD, AFM, EDS and BET measurements, as well as Raman spectroscopy. The XRPD and Raman measurements have revealed the anatase phase as dominant in all nanopowders, with crystallite size decreasing from similar to 15 nm in pure TiO2 to similar to 12 nm in La-doped samples. The BET data suggest that all samples are fully mesoporous, with mean pore diameters in the range of similar to 6-8 nm. The specific surface area and the complexity of pore structure are greater in doped samples than in pure TiO2 sample. The spectroscopic ellipsometry has apparently shown that the band gap has been gradually increased with the increase of La content. The STM and STS techniques have been used successfully to evaluate the surface morphology and electronic properties of La-doped nanopowders. All investigated properties have been related to photocatalytic activity, tested in degradation of a metoprolol tartrate salt (0.05 mM), and induced by UV-radiation. All doped samples showed increased photocatalytic activity compared to pure TiO2, among which the 0.65 mol% La-doped sample appeared to be the most efficient. (C) 2013 Elsevier Inc. All rights reserved.",
journal = "Materials Characterization",
title = "Surface modification of sol-gel synthesized TiO2 nanoparticles induced by La-doping",
volume = "88",
pages = "30-41",
doi = "10.1016/j.matchar.2013.12.002"
}

Grujić-Brojčin, M., Armaković, S. J., Tomić, N., Abramović, B. F., Golubavic, A., Stojadinovic, B., Kremenović, A. S., Babić, B. M., Dohcevic-Mitrovic, Z.,& Šćepanović, M.. (2014). Surface modification of sol-gel synthesized TiO2 nanoparticles induced by La-doping. in Materials Characterization, 88, 30-41.
https://doi.org/10.1016/j.matchar.2013.12.002

Grujić-Brojčin M, Armaković SJ, Tomić N, Abramović BF, Golubavic A, Stojadinovic B, Kremenović AS, Babić BM, Dohcevic-Mitrovic Z, Šćepanović M. Surface modification of sol-gel synthesized TiO2 nanoparticles induced by La-doping. in Materials Characterization. 2014;88:30-41.
doi:10.1016/j.matchar.2013.12.002 .

Grujić-Brojčin, Mirjana, Armaković, Sanja J., Tomić, Nataša, Abramović, Biljana F., Golubavic, A., Stojadinovic, B., Kremenović, Aleksandar S., Babić, Biljana M., Dohcevic-Mitrovic, Z., Šćepanović, Maja, "Surface modification of sol-gel synthesized TiO2 nanoparticles induced by La-doping" in Materials Characterization, 88 (2014):30-41,
https://doi.org/10.1016/j.matchar.2013.12.002 . .

TY  - JOUR
AU  - Živković, Ljiljana
AU  - Popić, Jovan P.
AU  - Jegdić, Bore V.
AU  - Dohcevic-Mitrovic, Z.
AU  - Bajat, Jelena B.
AU  - Miskovic-Stankovic, V. B.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5902
AB  - Among potential replacements for chromates, cerium-based conversion coatings (CeCCs) have been identified as leading candidates, showing a good promise as environmentally compliant corrosion inhibitors on Al alloys. In this work, CeCCs were synthesized on M6060 by electrolytic deposition (ELD), a well-suited method for the fabrication of films with controllable properties, at low processing temperature and cost. The CeCCs were deposited at room temperature from Ce(NO3)(3) solution, applying different cathodic potentials (-1.1, -1.4 and -1.6 V vs. SCE) for different deposition times between 5 and 20 min. Structural, morphological and compositional properties of the films were characterized by X-ray diffraction, Raman spectroscopy and scanning electron microscopy coupled with energy dispersive spectroscopy. Ceria films were nanostructured, exhibiting a cubic fluorite structure. From corrosion perspective, the quality of CeCCs was evaluated in 0.5 M NaCI solution via electrochemical impedance spectroscopy and linear sweep voltammetry. As shown, the coating corrosion quality is the interplay between deposition potential and deposition time. The highest potential led to highly cracked films of poor adherence, even at the shortest deposition time, which disqualified them from any corrosion protection application. The lowest potential (-1.1 V) produced crack-free coatings, but longer times ( GT = 10 min) were needed to provide the protective layer formation. The best corrosion protection offered CeCCs prepared at -1.4 V. The highest R-p (582 k Omega cm(2)) and the smallest CPE (12.6 . 10(-6) s(n) Omega(-1) cm) were obtained at 20 min deposition time. However, from economical point of view, 10 min deposition is a promising choice. These CeCCs also improved pitting corrosion resistance owing to homogeneous microstructure and sufficient thickness. (C) 2013 Elsevier B.V. All rights reserved.
T2  - Surface and Coatings Technology
T1  - Corrosion study of ceria coatings on AA6060 aluminum alloy obtained by cathodic electrodeposition: Effect of deposition potential
VL  - 240
SP  - 327
EP  - 335
DO  - 10.1016/j.surfcoat.2013.12.048
ER  - 

@article{
author = "Živković, Ljiljana and Popić, Jovan P. and Jegdić, Bore V. and Dohcevic-Mitrovic, Z. and Bajat, Jelena B. and Miskovic-Stankovic, V. B.",
year = "2014",
abstract = "Among potential replacements for chromates, cerium-based conversion coatings (CeCCs) have been identified as leading candidates, showing a good promise as environmentally compliant corrosion inhibitors on Al alloys. In this work, CeCCs were synthesized on M6060 by electrolytic deposition (ELD), a well-suited method for the fabrication of films with controllable properties, at low processing temperature and cost. The CeCCs were deposited at room temperature from Ce(NO3)(3) solution, applying different cathodic potentials (-1.1, -1.4 and -1.6 V vs. SCE) for different deposition times between 5 and 20 min. Structural, morphological and compositional properties of the films were characterized by X-ray diffraction, Raman spectroscopy and scanning electron microscopy coupled with energy dispersive spectroscopy. Ceria films were nanostructured, exhibiting a cubic fluorite structure. From corrosion perspective, the quality of CeCCs was evaluated in 0.5 M NaCI solution via electrochemical impedance spectroscopy and linear sweep voltammetry. As shown, the coating corrosion quality is the interplay between deposition potential and deposition time. The highest potential led to highly cracked films of poor adherence, even at the shortest deposition time, which disqualified them from any corrosion protection application. The lowest potential (-1.1 V) produced crack-free coatings, but longer times ( GT = 10 min) were needed to provide the protective layer formation. The best corrosion protection offered CeCCs prepared at -1.4 V. The highest R-p (582 k Omega cm(2)) and the smallest CPE (12.6 . 10(-6) s(n) Omega(-1) cm) were obtained at 20 min deposition time. However, from economical point of view, 10 min deposition is a promising choice. These CeCCs also improved pitting corrosion resistance owing to homogeneous microstructure and sufficient thickness. (C) 2013 Elsevier B.V. All rights reserved.",
journal = "Surface and Coatings Technology",
title = "Corrosion study of ceria coatings on AA6060 aluminum alloy obtained by cathodic electrodeposition: Effect of deposition potential",
volume = "240",
pages = "327-335",
doi = "10.1016/j.surfcoat.2013.12.048"
}

Živković, L., Popić, J. P., Jegdić, B. V., Dohcevic-Mitrovic, Z., Bajat, J. B.,& Miskovic-Stankovic, V. B.. (2014). Corrosion study of ceria coatings on AA6060 aluminum alloy obtained by cathodic electrodeposition: Effect of deposition potential. in Surface and Coatings Technology, 240, 327-335.
https://doi.org/10.1016/j.surfcoat.2013.12.048

Živković L, Popić JP, Jegdić BV, Dohcevic-Mitrovic Z, Bajat JB, Miskovic-Stankovic VB. Corrosion study of ceria coatings on AA6060 aluminum alloy obtained by cathodic electrodeposition: Effect of deposition potential. in Surface and Coatings Technology. 2014;240:327-335.
doi:10.1016/j.surfcoat.2013.12.048 .

Živković, Ljiljana, Popić, Jovan P., Jegdić, Bore V., Dohcevic-Mitrovic, Z., Bajat, Jelena B., Miskovic-Stankovic, V. B., "Corrosion study of ceria coatings on AA6060 aluminum alloy obtained by cathodic electrodeposition: Effect of deposition potential" in Surface and Coatings Technology, 240 (2014):327-335,
https://doi.org/10.1016/j.surfcoat.2013.12.048 . .

TY  - JOUR
AU  - Golubović, Aleksandar V.
AU  - Abramović, Biljana F.
AU  - Šćepanović, Maja
AU  - Grujić-Brojčin, Mirjana
AU  - Armaković, Sanja J.
AU  - Veljkovic, I.
AU  - Babić, Biljana M.
AU  - Dohcevic-Mitrovic, Z.
AU  - Popović, Zoran V.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5421
AB  - The structural and morphological properties of mesoporous anatase nanopowders, synthesized by sol-gel method, have been modified by varying the duration of calcination, in order to obtain more efficient photocatalyst than Degussa P25 in the degradation of relatively large pollutant molecules ( GT 1 nm in size). According to X-ray diffraction analysis, the crystallite size was increased from 13 to 17.5 nm with the increase of calcination time from 1 to 7 h. The analysis of nitrogen sorption experimental data revealed that all samples were mesoporous, with a mean pore diameters in the range of similar to 5-9 nm. The corrugated pore structure model was employed to evaluate pore structure tortuosity. Nanopowder properties have been related to the photocatalytic activity, tested in the degradation of metoprolol tartrate salt, selective beta(1)-blocker used in a variety of cardiovascular diseases, with molecular size of 0.610 nm x 1.347 nm. The study has demonstrated that samples calcined for 4 and 5 h have displayed higher photocatalytic performance than Degussa P25, whereas the sample calcined for 3 h has shown comparable activity. (C) 2013 Published by Elsevier Ltd.
T2  - Materials Research Bulletin
T1  - Improved efficiency of sol-gel synthesized mesoporous anatase nanopowders in photocatalytic degradation of metoprolol
VL  - 48
IS  - 4
SP  - 1363
EP  - 1371
DO  - 10.1016/j.materresbull.2012.11.098
ER  - 

@article{
author = "Golubović, Aleksandar V. and Abramović, Biljana F. and Šćepanović, Maja and Grujić-Brojčin, Mirjana and Armaković, Sanja J. and Veljkovic, I. and Babić, Biljana M. and Dohcevic-Mitrovic, Z. and Popović, Zoran V.",
year = "2013",
abstract = "The structural and morphological properties of mesoporous anatase nanopowders, synthesized by sol-gel method, have been modified by varying the duration of calcination, in order to obtain more efficient photocatalyst than Degussa P25 in the degradation of relatively large pollutant molecules ( GT 1 nm in size). According to X-ray diffraction analysis, the crystallite size was increased from 13 to 17.5 nm with the increase of calcination time from 1 to 7 h. The analysis of nitrogen sorption experimental data revealed that all samples were mesoporous, with a mean pore diameters in the range of similar to 5-9 nm. The corrugated pore structure model was employed to evaluate pore structure tortuosity. Nanopowder properties have been related to the photocatalytic activity, tested in the degradation of metoprolol tartrate salt, selective beta(1)-blocker used in a variety of cardiovascular diseases, with molecular size of 0.610 nm x 1.347 nm. The study has demonstrated that samples calcined for 4 and 5 h have displayed higher photocatalytic performance than Degussa P25, whereas the sample calcined for 3 h has shown comparable activity. (C) 2013 Published by Elsevier Ltd.",
journal = "Materials Research Bulletin",
title = "Improved efficiency of sol-gel synthesized mesoporous anatase nanopowders in photocatalytic degradation of metoprolol",
volume = "48",
number = "4",
pages = "1363-1371",
doi = "10.1016/j.materresbull.2012.11.098"
}

Golubović, A. V., Abramović, B. F., Šćepanović, M., Grujić-Brojčin, M., Armaković, S. J., Veljkovic, I., Babić, B. M., Dohcevic-Mitrovic, Z.,& Popović, Z. V.. (2013). Improved efficiency of sol-gel synthesized mesoporous anatase nanopowders in photocatalytic degradation of metoprolol. in Materials Research Bulletin, 48(4), 1363-1371.
https://doi.org/10.1016/j.materresbull.2012.11.098

Golubović AV, Abramović BF, Šćepanović M, Grujić-Brojčin M, Armaković SJ, Veljkovic I, Babić BM, Dohcevic-Mitrovic Z, Popović ZV. Improved efficiency of sol-gel synthesized mesoporous anatase nanopowders in photocatalytic degradation of metoprolol. in Materials Research Bulletin. 2013;48(4):1363-1371.
doi:10.1016/j.materresbull.2012.11.098 .

Golubović, Aleksandar V., Abramović, Biljana F., Šćepanović, Maja, Grujić-Brojčin, Mirjana, Armaković, Sanja J., Veljkovic, I., Babić, Biljana M., Dohcevic-Mitrovic, Z., Popović, Zoran V., "Improved efficiency of sol-gel synthesized mesoporous anatase nanopowders in photocatalytic degradation of metoprolol" in Materials Research Bulletin, 48, no. 4 (2013):1363-1371,
https://doi.org/10.1016/j.materresbull.2012.11.098 . .

TY  - JOUR
AU  - Prekajski, Marija D.
AU  - Dohcevic-Mitrovic, Z.
AU  - Radović, Marko B.
AU  - Babić, Biljana M.
AU  - Pantić, Jelena R.
AU  - Kremenović, Aleksandar S.
AU  - Matović, Branko
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4832
AB  - Nanocrystalline powders of solid solution CeO2-Bi2O3 were synthesized by self-propagating room temperature reaction (SPRT) procedure with composition (Ce1-xBixO2-delta where the x = 0.1-0.5). X-ray diffraction analyses show that for x LT 0.50 a solid solution with fluorite structure is formed. Rietvelds structure refinement method was applied to characterize prepared powders and its microstructure (size strain). The lattice parameters increase according to Vegards rule with increasing of Bi concentration. The average crystallite size is about 2-3 nm. Spectroscopic ellipsometry and Raman scattering measurements were used to characterize the samples at room temperature. The Raman measurements demonstrated electron molecular vibrational coupling and increase of oxygen vacancy concentration whereas increase of Bi content provokes a small decrease of optical absorption edge in comparison with pure ceria. Specific surface area of obtained powders was measured by Brunauer-Emmet-Teller (BET) method. (C) 2011 Elsevier Ltd. All rights reserved.
T2  - Journal of the European Ceramic Society
T1  - Nanocrystaline solid solution CeO2-Bi2O3
VL  - 32
IS  - 9
SP  - 1983
EP  - 1987
DO  - 10.1016/j.jeurceramsoc.2011.12.009
ER  - 

@article{
author = "Prekajski, Marija D. and Dohcevic-Mitrovic, Z. and Radović, Marko B. and Babić, Biljana M. and Pantić, Jelena R. and Kremenović, Aleksandar S. and Matović, Branko",
year = "2012",
abstract = "Nanocrystalline powders of solid solution CeO2-Bi2O3 were synthesized by self-propagating room temperature reaction (SPRT) procedure with composition (Ce1-xBixO2-delta where the x = 0.1-0.5). X-ray diffraction analyses show that for x LT 0.50 a solid solution with fluorite structure is formed. Rietvelds structure refinement method was applied to characterize prepared powders and its microstructure (size strain). The lattice parameters increase according to Vegards rule with increasing of Bi concentration. The average crystallite size is about 2-3 nm. Spectroscopic ellipsometry and Raman scattering measurements were used to characterize the samples at room temperature. The Raman measurements demonstrated electron molecular vibrational coupling and increase of oxygen vacancy concentration whereas increase of Bi content provokes a small decrease of optical absorption edge in comparison with pure ceria. Specific surface area of obtained powders was measured by Brunauer-Emmet-Teller (BET) method. (C) 2011 Elsevier Ltd. All rights reserved.",
journal = "Journal of the European Ceramic Society",
title = "Nanocrystaline solid solution CeO2-Bi2O3",
volume = "32",
number = "9",
pages = "1983-1987",
doi = "10.1016/j.jeurceramsoc.2011.12.009"
}

Prekajski, M. D., Dohcevic-Mitrovic, Z., Radović, M. B., Babić, B. M., Pantić, J. R., Kremenović, A. S.,& Matović, B.. (2012). Nanocrystaline solid solution CeO2-Bi2O3. in Journal of the European Ceramic Society, 32(9), 1983-1987.
https://doi.org/10.1016/j.jeurceramsoc.2011.12.009

Prekajski MD, Dohcevic-Mitrovic Z, Radović MB, Babić BM, Pantić JR, Kremenović AS, Matović B. Nanocrystaline solid solution CeO2-Bi2O3. in Journal of the European Ceramic Society. 2012;32(9):1983-1987.
doi:10.1016/j.jeurceramsoc.2011.12.009 .

Prekajski, Marija D., Dohcevic-Mitrovic, Z., Radović, Marko B., Babić, Biljana M., Pantić, Jelena R., Kremenović, Aleksandar S., Matović, Branko, "Nanocrystaline solid solution CeO2-Bi2O3" in Journal of the European Ceramic Society, 32, no. 9 (2012):1983-1987,
https://doi.org/10.1016/j.jeurceramsoc.2011.12.009 . .

TY  - JOUR
AU  - Askrabic, S.
AU  - Dohcevic-Mitrovic, Z.
AU  - Kremenović, Aleksandar S.
AU  - Lazarević, Nataša
AU  - Kahlenberg, V.
AU  - Popović, Zoran V.
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4661
AB  - Nanocrystalline ceria (CeO2) is known for its ionic conductivity and oxygen storage properties, which depend on the presence of oxygen ion vacancies. The vacancies cause several important changes in CeO2 involving microstrain, electronic structure, magnetic properties, etc. In this article, we focus our attention to the microstructural changes of nanocrystalline CeO2-x annealed at different temperatures in the range 200500 degrees C. Structural and vibrational properties were investigated by X-ray diffraction and Raman spectroscopy. It was observed that the content of oxygen vacancies changed significantly with increasing annealing temperature, which plays an important role in the observed microstructural changes of the annealed samples. We demonstrate that the observed microstrain changes, because of variable defect content, dominate over the crystallite size effect. This finding is opposite to the conclusions made by several other authors. A new mode, classified as a probable surface mode, was observed in the Raman spectra at similar to 480 cm(1), the appearance of which can be explained by the large defective structure and disorder in the ceria lattice. Copyright (c) 2011 John Wiley and Sons, Ltd.
T2  - Journal of Raman Spectroscopy
T1  - Oxygen vacancy-induced microstructural changes of annealed CeO2-x nanocrystals
VL  - 43
IS  - 1
SP  - 76
EP  - 81
DO  - 10.1002/jrs.2987
ER  - 

@article{
author = "Askrabic, S. and Dohcevic-Mitrovic, Z. and Kremenović, Aleksandar S. and Lazarević, Nataša and Kahlenberg, V. and Popović, Zoran V.",
year = "2012",
abstract = "Nanocrystalline ceria (CeO2) is known for its ionic conductivity and oxygen storage properties, which depend on the presence of oxygen ion vacancies. The vacancies cause several important changes in CeO2 involving microstrain, electronic structure, magnetic properties, etc. In this article, we focus our attention to the microstructural changes of nanocrystalline CeO2-x annealed at different temperatures in the range 200500 degrees C. Structural and vibrational properties were investigated by X-ray diffraction and Raman spectroscopy. It was observed that the content of oxygen vacancies changed significantly with increasing annealing temperature, which plays an important role in the observed microstructural changes of the annealed samples. We demonstrate that the observed microstrain changes, because of variable defect content, dominate over the crystallite size effect. This finding is opposite to the conclusions made by several other authors. A new mode, classified as a probable surface mode, was observed in the Raman spectra at similar to 480 cm(1), the appearance of which can be explained by the large defective structure and disorder in the ceria lattice. Copyright (c) 2011 John Wiley and Sons, Ltd.",
journal = "Journal of Raman Spectroscopy",
title = "Oxygen vacancy-induced microstructural changes of annealed CeO2-x nanocrystals",
volume = "43",
number = "1",
pages = "76-81",
doi = "10.1002/jrs.2987"
}

Askrabic, S., Dohcevic-Mitrovic, Z., Kremenović, A. S., Lazarević, N., Kahlenberg, V.,& Popović, Z. V.. (2012). Oxygen vacancy-induced microstructural changes of annealed CeO2-x nanocrystals. in Journal of Raman Spectroscopy, 43(1), 76-81.
https://doi.org/10.1002/jrs.2987

Askrabic S, Dohcevic-Mitrovic Z, Kremenović AS, Lazarević N, Kahlenberg V, Popović ZV. Oxygen vacancy-induced microstructural changes of annealed CeO2-x nanocrystals. in Journal of Raman Spectroscopy. 2012;43(1):76-81.
doi:10.1002/jrs.2987 .

Askrabic, S., Dohcevic-Mitrovic, Z., Kremenović, Aleksandar S., Lazarević, Nataša, Kahlenberg, V., Popović, Zoran V., "Oxygen vacancy-induced microstructural changes of annealed CeO2-x nanocrystals" in Journal of Raman Spectroscopy, 43, no. 1 (2012):76-81,
https://doi.org/10.1002/jrs.2987 . .

TY  - JOUR
AU  - Dohcevic-Mitrovic, Z.
AU  - Golubović, Aleksandar V.
AU  - Radović, Marko B.
AU  - Fruth, V.
AU  - Kremenović, Aleksandar S.
AU  - Meden, A.
AU  - Babić, Biljana M.
AU  - Šćepanović, Maja
AU  - Popović, Zoran V.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4421
AB  - Ultrafine porous cerium dioxide nanopowders were synthesized by relatively new and cost-effective hydrothermal method varying the main synthesis parameters, temperature of calcination and type of basic solution. Characterization of the as-produced powders was performed by X-ray diffraction (XRD), atomic force microscopy (AFM), Raman scattering and Brunauer-Emmett-Teller (BET) method. This study reveals that difference in synthesis parameters has strong influence on the particle size, surface area, and pore size distribution enabling the more precise control of material properties very important for catalytic and nanosensor applications. (C) 2011 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim
T2  - Physica Status Solidi. A: Applications and Materials Science
T1  - Mesoporous CeO2 nanopowders with different particle sizes
VL  - 208
IS  - 6
SP  - 1399
EP  - 1402
DO  - 10.1002/pssa.201000355
ER  - 

@article{
author = "Dohcevic-Mitrovic, Z. and Golubović, Aleksandar V. and Radović, Marko B. and Fruth, V. and Kremenović, Aleksandar S. and Meden, A. and Babić, Biljana M. and Šćepanović, Maja and Popović, Zoran V.",
year = "2011",
abstract = "Ultrafine porous cerium dioxide nanopowders were synthesized by relatively new and cost-effective hydrothermal method varying the main synthesis parameters, temperature of calcination and type of basic solution. Characterization of the as-produced powders was performed by X-ray diffraction (XRD), atomic force microscopy (AFM), Raman scattering and Brunauer-Emmett-Teller (BET) method. This study reveals that difference in synthesis parameters has strong influence on the particle size, surface area, and pore size distribution enabling the more precise control of material properties very important for catalytic and nanosensor applications. (C) 2011 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim",
journal = "Physica Status Solidi. A: Applications and Materials Science",
title = "Mesoporous CeO2 nanopowders with different particle sizes",
volume = "208",
number = "6",
pages = "1399-1402",
doi = "10.1002/pssa.201000355"
}

Dohcevic-Mitrovic, Z., Golubović, A. V., Radović, M. B., Fruth, V., Kremenović, A. S., Meden, A., Babić, B. M., Šćepanović, M.,& Popović, Z. V.. (2011). Mesoporous CeO2 nanopowders with different particle sizes. in Physica Status Solidi. A: Applications and Materials Science, 208(6), 1399-1402.
https://doi.org/10.1002/pssa.201000355

Dohcevic-Mitrovic Z, Golubović AV, Radović MB, Fruth V, Kremenović AS, Meden A, Babić BM, Šćepanović M, Popović ZV. Mesoporous CeO2 nanopowders with different particle sizes. in Physica Status Solidi. A: Applications and Materials Science. 2011;208(6):1399-1402.
doi:10.1002/pssa.201000355 .

Dohcevic-Mitrovic, Z., Golubović, Aleksandar V., Radović, Marko B., Fruth, V., Kremenović, Aleksandar S., Meden, A., Babić, Biljana M., Šćepanović, Maja, Popović, Zoran V., "Mesoporous CeO2 nanopowders with different particle sizes" in Physica Status Solidi. A: Applications and Materials Science, 208, no. 6 (2011):1399-1402,
https://doi.org/10.1002/pssa.201000355 . .

TY  - JOUR
AU  - Stojmenović, Marija
AU  - Bošković, Snežana B.
AU  - Zec, Slavica
AU  - Babić, Biljana M.
AU  - Matović, Branko
AU  - Bučevac, Dušan
AU  - Dohcevic-Mitrovic, Z.
AU  - Aldinger, Fritz
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4126
AB  - The ceria solid solutions doped with rare earth cations were synthesized by two methods and the microstructural and morphological characterization of powders was performed. The results obtained by X-ray diffraction (XRD), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) method and Raman spectroscopy were studied and discussed. The results showed that finer powders have not only higher specific surface area, smaller particles and crystallite sizes, but also larger lattice parameters in the case of both single and multidoped solid solutions. (C) 2010 Elsevier B.V. All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - Characterization of nanometric multidoped ceria powders
VL  - 507
IS  - 1
SP  - 279
EP  - 285
DO  - 10.1016/j.jallcom.2010.07.177
ER  - 

@article{
author = "Stojmenović, Marija and Bošković, Snežana B. and Zec, Slavica and Babić, Biljana M. and Matović, Branko and Bučevac, Dušan and Dohcevic-Mitrovic, Z. and Aldinger, Fritz",
year = "2010",
abstract = "The ceria solid solutions doped with rare earth cations were synthesized by two methods and the microstructural and morphological characterization of powders was performed. The results obtained by X-ray diffraction (XRD), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) method and Raman spectroscopy were studied and discussed. The results showed that finer powders have not only higher specific surface area, smaller particles and crystallite sizes, but also larger lattice parameters in the case of both single and multidoped solid solutions. (C) 2010 Elsevier B.V. All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "Characterization of nanometric multidoped ceria powders",
volume = "507",
number = "1",
pages = "279-285",
doi = "10.1016/j.jallcom.2010.07.177"
}

Stojmenović, M., Bošković, S. B., Zec, S., Babić, B. M., Matović, B., Bučevac, D., Dohcevic-Mitrovic, Z.,& Aldinger, F.. (2010). Characterization of nanometric multidoped ceria powders. in Journal of Alloys and Compounds, 507(1), 279-285.
https://doi.org/10.1016/j.jallcom.2010.07.177

Stojmenović M, Bošković SB, Zec S, Babić BM, Matović B, Bučevac D, Dohcevic-Mitrovic Z, Aldinger F. Characterization of nanometric multidoped ceria powders. in Journal of Alloys and Compounds. 2010;507(1):279-285.
doi:10.1016/j.jallcom.2010.07.177 .

Stojmenović, Marija, Bošković, Snežana B., Zec, Slavica, Babić, Biljana M., Matović, Branko, Bučevac, Dušan, Dohcevic-Mitrovic, Z., Aldinger, Fritz, "Characterization of nanometric multidoped ceria powders" in Journal of Alloys and Compounds, 507, no. 1 (2010):279-285,
https://doi.org/10.1016/j.jallcom.2010.07.177 . .

TY  - JOUR
AU  - Antić, Bratislav
AU  - Kremenović, Aleksandar S.
AU  - Vučinić-Vasić, Milica
AU  - Dohcevic-Mitrovic, Z.
AU  - Nikolić, Aleksandar S.
AU  - Gruden-Pavlović, Maja
AU  - Jančar, Boštjan
AU  - Meden, A.
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4015
AB  - After controlled thermal degradation of acetylacetonato (AA) complexes, mixtures of monodisperse similar to 5 nm large isometric particles of Y2-xYbxO3 (x = 0.06, 0.10, 0.20, 0.40) were synthesized. Detailed information on nanoparticles microstructure and core crystal structure is reported. The Yb3+ ions occupy preferently C-3i sites for low Yb3+ concentrations, while for 20 at.% Yb3+, a random distribution was found. It was shown that the particle/crystallite size and strain as well as Raman modes positions and widths are influenced by Yb3+ concentration. Crystallographic and Raman spectroscopy results indicate that the particles are core/shell structured with cubic crystalline core and monoclinic-like disordered shell. Most probable particles shell/core volume ratio decreased with annealing at 500 degrees C and the shell disappeared when annealed at 1000 degrees C. (C) 2010 Elsevier B.V. All rights reserved.
T2  - Materials Chemistry and Physics
T1  - Composition related properties of (Yb,Y)(2)O-3 nanoparticles synthesized by controlled thermal degradation of AA complexes
VL  - 122
IS  - 2-3
SP  - 386
EP  - 391
DO  - 10.1016/j.matchemphys.2010.03.010
ER  - 

@article{
author = "Antić, Bratislav and Kremenović, Aleksandar S. and Vučinić-Vasić, Milica and Dohcevic-Mitrovic, Z. and Nikolić, Aleksandar S. and Gruden-Pavlović, Maja and Jančar, Boštjan and Meden, A.",
year = "2010",
abstract = "After controlled thermal degradation of acetylacetonato (AA) complexes, mixtures of monodisperse similar to 5 nm large isometric particles of Y2-xYbxO3 (x = 0.06, 0.10, 0.20, 0.40) were synthesized. Detailed information on nanoparticles microstructure and core crystal structure is reported. The Yb3+ ions occupy preferently C-3i sites for low Yb3+ concentrations, while for 20 at.% Yb3+, a random distribution was found. It was shown that the particle/crystallite size and strain as well as Raman modes positions and widths are influenced by Yb3+ concentration. Crystallographic and Raman spectroscopy results indicate that the particles are core/shell structured with cubic crystalline core and monoclinic-like disordered shell. Most probable particles shell/core volume ratio decreased with annealing at 500 degrees C and the shell disappeared when annealed at 1000 degrees C. (C) 2010 Elsevier B.V. All rights reserved.",
journal = "Materials Chemistry and Physics",
title = "Composition related properties of (Yb,Y)(2)O-3 nanoparticles synthesized by controlled thermal degradation of AA complexes",
volume = "122",
number = "2-3",
pages = "386-391",
doi = "10.1016/j.matchemphys.2010.03.010"
}

Antić, B., Kremenović, A. S., Vučinić-Vasić, M., Dohcevic-Mitrovic, Z., Nikolić, A. S., Gruden-Pavlović, M., Jančar, B.,& Meden, A.. (2010). Composition related properties of (Yb,Y)(2)O-3 nanoparticles synthesized by controlled thermal degradation of AA complexes. in Materials Chemistry and Physics, 122(2-3), 386-391.
https://doi.org/10.1016/j.matchemphys.2010.03.010

Antić B, Kremenović AS, Vučinić-Vasić M, Dohcevic-Mitrovic Z, Nikolić AS, Gruden-Pavlović M, Jančar B, Meden A. Composition related properties of (Yb,Y)(2)O-3 nanoparticles synthesized by controlled thermal degradation of AA complexes. in Materials Chemistry and Physics. 2010;122(2-3):386-391.
doi:10.1016/j.matchemphys.2010.03.010 .

Antić, Bratislav, Kremenović, Aleksandar S., Vučinić-Vasić, Milica, Dohcevic-Mitrovic, Z., Nikolić, Aleksandar S., Gruden-Pavlović, Maja, Jančar, Boštjan, Meden, A., "Composition related properties of (Yb,Y)(2)O-3 nanoparticles synthesized by controlled thermal degradation of AA complexes" in Materials Chemistry and Physics, 122, no. 2-3 (2010):386-391,
https://doi.org/10.1016/j.matchemphys.2010.03.010 . .

TY  - JOUR
AU  - Šćepanović, Maja
AU  - Askrabic, S.
AU  - Grujić-Brojčin, Mirjana
AU  - Golubović, Aleksandar V.
AU  - Dohcevic-Mitrovic, Z.
AU  - Matović, Branko
AU  - Popović, Zoran V.
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6863
AB  - Pure titania (TiO(2)) nanopowders and TiO(2) doped with 10 mol % of vanadium ions (V(3+)) are synthesized by sol-gel method. The dependence of structural characteristics of nanopowders on synthesis conditions is investigated by X-ray diffraction and Raman spectroscopy. Very intensive modes observed in Raman spectra of all nanopowders are assigned to anatase phase of TiO(2). Additional Raman modes of extremely low intensity which can be related to the presence of small
T2  - International Journal of Modern Physics B
T1  - Raman Study of Vanadium-Doped Titania Nanopowders Synthesized By Sol-Gel Method
VL  - 24
IS  - 6-7
SP  - 667
EP  - 675
DO  - 10.1142/S0217979210064289
ER  - 

@article{
author = "Šćepanović, Maja and Askrabic, S. and Grujić-Brojčin, Mirjana and Golubović, Aleksandar V. and Dohcevic-Mitrovic, Z. and Matović, Branko and Popović, Zoran V.",
year = "2010",
abstract = "Pure titania (TiO(2)) nanopowders and TiO(2) doped with 10 mol % of vanadium ions (V(3+)) are synthesized by sol-gel method. The dependence of structural characteristics of nanopowders on synthesis conditions is investigated by X-ray diffraction and Raman spectroscopy. Very intensive modes observed in Raman spectra of all nanopowders are assigned to anatase phase of TiO(2). Additional Raman modes of extremely low intensity which can be related to the presence of small",
journal = "International Journal of Modern Physics B",
title = "Raman Study of Vanadium-Doped Titania Nanopowders Synthesized By Sol-Gel Method",
volume = "24",
number = "6-7",
pages = "667-675",
doi = "10.1142/S0217979210064289"
}

Šćepanović, M., Askrabic, S., Grujić-Brojčin, M., Golubović, A. V., Dohcevic-Mitrovic, Z., Matović, B.,& Popović, Z. V.. (2010). Raman Study of Vanadium-Doped Titania Nanopowders Synthesized By Sol-Gel Method. in International Journal of Modern Physics B, 24(6-7), 667-675.
https://doi.org/10.1142/S0217979210064289

Šćepanović M, Askrabic S, Grujić-Brojčin M, Golubović AV, Dohcevic-Mitrovic Z, Matović B, Popović ZV. Raman Study of Vanadium-Doped Titania Nanopowders Synthesized By Sol-Gel Method. in International Journal of Modern Physics B. 2010;24(6-7):667-675.
doi:10.1142/S0217979210064289 .

Šćepanović, Maja, Askrabic, S., Grujić-Brojčin, Mirjana, Golubović, Aleksandar V., Dohcevic-Mitrovic, Z., Matović, Branko, Popović, Zoran V., "Raman Study of Vanadium-Doped Titania Nanopowders Synthesized By Sol-Gel Method" in International Journal of Modern Physics B, 24, no. 6-7 (2010):667-675,
https://doi.org/10.1142/S0217979210064289 . .

TY  - JOUR
AU  - Matović, Branko
AU  - Bošković, Snežana B.
AU  - Logar, Mihovil
AU  - Radović, Marko B.
AU  - Dohcevic-Mitrovic, Z.
AU  - Popović, Zoran V.
AU  - Aldinger, Fritz
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4089
AB  - In this paper nanometric powders of solid solution of the host compound ceria (CeO(2)) with Pr dopant in the lattice were synthesized by self-propagating room temperature (SPRT) synthesis with composition (Ce(0.9)Pr(0.1)O(2-delta)). Powder properties such as specific surface area crystallite and particle size and lattice parameters have been studied. BET, TEM, X-ray diffraction (XRD) analysis and Raman scattering measurements were used to characterize the samples at room temperature. Obtained solid solution exhibits a fluorite-type crystal structure. The average crystallite size is about 3-4 nm. Williamson-Hall plots were used to separate the effect of the size and strain in the nanocrystals. It is noticed the redshift and asymmetric broadening of the Raman F(2g) mode which is explained with nanocrystalline nature of powders. Color characters of solid solution depending on calcinations temperature and their position in the chromaticity diagram were studied by UV-vis spectrophotometry (diffuse reflectance). (C) 2010 Elsevier B.V. All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - Synthesis and characterization of the nanometric Pr-doped ceria
VL  - 505
IS  - 1
SP  - 235
EP  - 238
DO  - 10.1016/j.jallcom.2010.06.036
ER  - 

@article{
author = "Matović, Branko and Bošković, Snežana B. and Logar, Mihovil and Radović, Marko B. and Dohcevic-Mitrovic, Z. and Popović, Zoran V. and Aldinger, Fritz",
year = "2010",
abstract = "In this paper nanometric powders of solid solution of the host compound ceria (CeO(2)) with Pr dopant in the lattice were synthesized by self-propagating room temperature (SPRT) synthesis with composition (Ce(0.9)Pr(0.1)O(2-delta)). Powder properties such as specific surface area crystallite and particle size and lattice parameters have been studied. BET, TEM, X-ray diffraction (XRD) analysis and Raman scattering measurements were used to characterize the samples at room temperature. Obtained solid solution exhibits a fluorite-type crystal structure. The average crystallite size is about 3-4 nm. Williamson-Hall plots were used to separate the effect of the size and strain in the nanocrystals. It is noticed the redshift and asymmetric broadening of the Raman F(2g) mode which is explained with nanocrystalline nature of powders. Color characters of solid solution depending on calcinations temperature and their position in the chromaticity diagram were studied by UV-vis spectrophotometry (diffuse reflectance). (C) 2010 Elsevier B.V. All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "Synthesis and characterization of the nanometric Pr-doped ceria",
volume = "505",
number = "1",
pages = "235-238",
doi = "10.1016/j.jallcom.2010.06.036"
}

Matović, B., Bošković, S. B., Logar, M., Radović, M. B., Dohcevic-Mitrovic, Z., Popović, Z. V.,& Aldinger, F.. (2010). Synthesis and characterization of the nanometric Pr-doped ceria. in Journal of Alloys and Compounds, 505(1), 235-238.
https://doi.org/10.1016/j.jallcom.2010.06.036

Matović B, Bošković SB, Logar M, Radović MB, Dohcevic-Mitrovic Z, Popović ZV, Aldinger F. Synthesis and characterization of the nanometric Pr-doped ceria. in Journal of Alloys and Compounds. 2010;505(1):235-238.
doi:10.1016/j.jallcom.2010.06.036 .

Matović, Branko, Bošković, Snežana B., Logar, Mihovil, Radović, Marko B., Dohcevic-Mitrovic, Z., Popović, Zoran V., Aldinger, Fritz, "Synthesis and characterization of the nanometric Pr-doped ceria" in Journal of Alloys and Compounds, 505, no. 1 (2010):235-238,
https://doi.org/10.1016/j.jallcom.2010.06.036 . .

TY  - JOUR
AU  - Radović, Marko B.
AU  - Dohcevic-Mitrovic, Z.
AU  - Paunović, Novica M.
AU  - Šćepanović, Maja
AU  - Matović, Branko
AU  - Popović, Zoran V.
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6835
AB  - We have measured the Raman scattering and magnetization of pure and Fe2+(Fe3+) doped CeO2 nanopowders at room temperature. The Raman scattering spectra revealed the existence of CeO2 fluorite cubic structure for all investigated samples. The Raman active mode at about 600 cm(-1), seen in all samples, can be ascribed to the CeO2 intrinsic oxygen vacancies. Additional Raman modes at 720 cm(-1), 1320 cm(-1) and 1600 cm(-1), which appear in the spectra of doped samples, can be assigned to maghemite (gamma-Fe2O3) cation deficient structure, to 2 omega(LO) IR-allowed overtone and two magnon structure, respectively. This implies that our powders are composed of mixed valence states and have defective structure. Presence of oxygen defect states and magnetic ions can be responsible for the observed ferromagnetism at room temperature in both pure and Fe doped samples.
T2  - Acta Physica Polonica A
T1  - Effect of Fe2+ (Fe3+) Doping on Structural Properties of CeO2 Nanocrystals
VL  - 116
IS  - 1
SP  - 84
EP  - 87
DO  - 10.12693/APhysPolA.116.84
ER  - 

@article{
author = "Radović, Marko B. and Dohcevic-Mitrovic, Z. and Paunović, Novica M. and Šćepanović, Maja and Matović, Branko and Popović, Zoran V.",
year = "2009",
abstract = "We have measured the Raman scattering and magnetization of pure and Fe2+(Fe3+) doped CeO2 nanopowders at room temperature. The Raman scattering spectra revealed the existence of CeO2 fluorite cubic structure for all investigated samples. The Raman active mode at about 600 cm(-1), seen in all samples, can be ascribed to the CeO2 intrinsic oxygen vacancies. Additional Raman modes at 720 cm(-1), 1320 cm(-1) and 1600 cm(-1), which appear in the spectra of doped samples, can be assigned to maghemite (gamma-Fe2O3) cation deficient structure, to 2 omega(LO) IR-allowed overtone and two magnon structure, respectively. This implies that our powders are composed of mixed valence states and have defective structure. Presence of oxygen defect states and magnetic ions can be responsible for the observed ferromagnetism at room temperature in both pure and Fe doped samples.",
journal = "Acta Physica Polonica A",
title = "Effect of Fe2+ (Fe3+) Doping on Structural Properties of CeO2 Nanocrystals",
volume = "116",
number = "1",
pages = "84-87",
doi = "10.12693/APhysPolA.116.84"
}

Radović, M. B., Dohcevic-Mitrovic, Z., Paunović, N. M., Šćepanović, M., Matović, B.,& Popović, Z. V.. (2009). Effect of Fe2+ (Fe3+) Doping on Structural Properties of CeO2 Nanocrystals. in Acta Physica Polonica A, 116(1), 84-87.
https://doi.org/10.12693/APhysPolA.116.84

Radović MB, Dohcevic-Mitrovic Z, Paunović NM, Šćepanović M, Matović B, Popović ZV. Effect of Fe2+ (Fe3+) Doping on Structural Properties of CeO2 Nanocrystals. in Acta Physica Polonica A. 2009;116(1):84-87.
doi:10.12693/APhysPolA.116.84 .

Radović, Marko B., Dohcevic-Mitrovic, Z., Paunović, Novica M., Šćepanović, Maja, Matović, Branko, Popović, Zoran V., "Effect of Fe2+ (Fe3+) Doping on Structural Properties of CeO2 Nanocrystals" in Acta Physica Polonica A, 116, no. 1 (2009):84-87,
https://doi.org/10.12693/APhysPolA.116.84 . .

TY  - JOUR
AU  - Matović, Branko
AU  - Dohcevic-Mitrovic, Z.
AU  - Radović, Marko B.
AU  - Brankovic, Z.
AU  - Branković, Goran O.
AU  - Bošković, Snežana B.
AU  - Popović, Zoran V.
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3732
AB  - Nanopowdered solid solution Ce(1-x)Fe(x)O(2-delta) samples (0 LT = x LT = 0.1) were synthesized by a self-propagating room temperature synthesis (SPRT). XRD and Raman spectroscopy at room temperature were used to study the vibrational properties of these materials as well as the Fe solubility in ceria lattice. Results show that all obtained powders are solid solutions with a fluorite-type crystal structure and all powders were nanometric in size. The average size of Ce(1-x)Fe(x)O(2-delta) particles lies about 5 nm. The results of electrical properties of the sintered samples investigated by an ac impedance spectroscopy are also presented and discussed. It was confirmed that Fe(3+) doped ceria material has a potential as electrolyte for intermediate-temperature solid oxide fuel cell applications. (C) 2009 Elsevier B.V. All rights reserved.
T2  - Journal of Power Sources
T1  - Synthesis and characterization of ceria based nanometric powders
VL  - 193
IS  - 1
SP  - 146
EP  - 149
DO  - 10.1016/j.jpowsour.2009.03.053
ER  - 

@article{
author = "Matović, Branko and Dohcevic-Mitrovic, Z. and Radović, Marko B. and Brankovic, Z. and Branković, Goran O. and Bošković, Snežana B. and Popović, Zoran V.",
year = "2009",
abstract = "Nanopowdered solid solution Ce(1-x)Fe(x)O(2-delta) samples (0 LT = x LT = 0.1) were synthesized by a self-propagating room temperature synthesis (SPRT). XRD and Raman spectroscopy at room temperature were used to study the vibrational properties of these materials as well as the Fe solubility in ceria lattice. Results show that all obtained powders are solid solutions with a fluorite-type crystal structure and all powders were nanometric in size. The average size of Ce(1-x)Fe(x)O(2-delta) particles lies about 5 nm. The results of electrical properties of the sintered samples investigated by an ac impedance spectroscopy are also presented and discussed. It was confirmed that Fe(3+) doped ceria material has a potential as electrolyte for intermediate-temperature solid oxide fuel cell applications. (C) 2009 Elsevier B.V. All rights reserved.",
journal = "Journal of Power Sources",
title = "Synthesis and characterization of ceria based nanometric powders",
volume = "193",
number = "1",
pages = "146-149",
doi = "10.1016/j.jpowsour.2009.03.053"
}

Matović, B., Dohcevic-Mitrovic, Z., Radović, M. B., Brankovic, Z., Branković, G. O., Bošković, S. B.,& Popović, Z. V.. (2009). Synthesis and characterization of ceria based nanometric powders. in Journal of Power Sources, 193(1), 146-149.
https://doi.org/10.1016/j.jpowsour.2009.03.053

Matović B, Dohcevic-Mitrovic Z, Radović MB, Brankovic Z, Branković GO, Bošković SB, Popović ZV. Synthesis and characterization of ceria based nanometric powders. in Journal of Power Sources. 2009;193(1):146-149.
doi:10.1016/j.jpowsour.2009.03.053 .

Matović, Branko, Dohcevic-Mitrovic, Z., Radović, Marko B., Brankovic, Z., Branković, Goran O., Bošković, Snežana B., Popović, Zoran V., "Synthesis and characterization of ceria based nanometric powders" in Journal of Power Sources, 193, no. 1 (2009):146-149,
https://doi.org/10.1016/j.jpowsour.2009.03.053 . .

TY  - JOUR
AU  - Matović, Branko
AU  - Dukić, Jelena
AU  - Devečerski, Aleksandar
AU  - Bošković, Snežana B.
AU  - Ninic, M.
AU  - Dohcevic-Mitrovic, Z.
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3446
AB  - This paper deals with Nd-doped ceria solid solutions: Ce(1-x)Nd(x)O(2-delta) with x ranging from 0 to 0.25. Six different powders were synthesized by applying the method based on self-propagating room temperature reaction (SPRT) between metallic nitrates and sodium hydroxide. The method is known to assure very precise stoichiometry of the final product in comparison with a tailored composition. Rietveld refinement was employed to get structural information on the. synthesized powder. An increase of Nd ion concentration increases the unit cell parameters and average bond distances. We have shown that all obtained powders were solid solutions with a fluorite-type crystal structure and all powder particles were of nanometric size (about 3 nm).
T2  - Science of Sintering
T1  - Crystal structure analysis of Nd-doped ceria solid solutions
VL  - 40
IS  - 1
SP  - 63
EP  - 68
DO  - 10.2298/SOS0801061M
ER  - 

@article{
author = "Matović, Branko and Dukić, Jelena and Devečerski, Aleksandar and Bošković, Snežana B. and Ninic, M. and Dohcevic-Mitrovic, Z.",
year = "2008",
abstract = "This paper deals with Nd-doped ceria solid solutions: Ce(1-x)Nd(x)O(2-delta) with x ranging from 0 to 0.25. Six different powders were synthesized by applying the method based on self-propagating room temperature reaction (SPRT) between metallic nitrates and sodium hydroxide. The method is known to assure very precise stoichiometry of the final product in comparison with a tailored composition. Rietveld refinement was employed to get structural information on the. synthesized powder. An increase of Nd ion concentration increases the unit cell parameters and average bond distances. We have shown that all obtained powders were solid solutions with a fluorite-type crystal structure and all powder particles were of nanometric size (about 3 nm).",
journal = "Science of Sintering",
title = "Crystal structure analysis of Nd-doped ceria solid solutions",
volume = "40",
number = "1",
pages = "63-68",
doi = "10.2298/SOS0801061M"
}

Matović, B., Dukić, J., Devečerski, A., Bošković, S. B., Ninic, M.,& Dohcevic-Mitrovic, Z.. (2008). Crystal structure analysis of Nd-doped ceria solid solutions. in Science of Sintering, 40(1), 63-68.
https://doi.org/10.2298/SOS0801061M

Matović B, Dukić J, Devečerski A, Bošković SB, Ninic M, Dohcevic-Mitrovic Z. Crystal structure analysis of Nd-doped ceria solid solutions. in Science of Sintering. 2008;40(1):63-68.
doi:10.2298/SOS0801061M .

Matović, Branko, Dukić, Jelena, Devečerski, Aleksandar, Bošković, Snežana B., Ninic, M., Dohcevic-Mitrovic, Z., "Crystal structure analysis of Nd-doped ceria solid solutions" in Science of Sintering, 40, no. 1 (2008):63-68,
https://doi.org/10.2298/SOS0801061M . .

TY  - JOUR
AU  - Radović, Marko B.
AU  - Dohcevic-Mitrovic, Z.
AU  - Šćepanović, Maja
AU  - Grujić-Brojčin, Mirjana
AU  - Matović, Branko
AU  - Bošković, Snežana B.
AU  - Popvic, Z. V.
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3382
AB  - A series of Ce1-xBaxO2-y (5 LT = x LT = 0.20) nanometric powders were synthesized by self-propagating room temperature synthesis. XRD and Raman scattering measurements were used to characterize the samples. at room temperature. All the samples are solid solutions with fluorite type structure with an average crystallite size about 5 nm. The redshift and asymmetric broadening of the Raman F g mode can be well explained with combined confinement and strain effects because of the nanocrystalline powders nature. The appearance of the additional peaks at similar to 560 cm(-1) and similar to 600 cm(-1), are attributed to extrinsic and intrinsic O2- vacancies in ceria lattice. Raman spectra of temperature treated Ce0.80Ba0.20O2-delta sample revealed the instability of this system.
T2  - Science of Sintering
T1  - Raman study of Ba-doped ceria nanopowders
VL  - 39
IS  - 3
SP  - 281
EP  - 286
DO  - 10.2298/SOS0703281R
ER  - 

@article{
author = "Radović, Marko B. and Dohcevic-Mitrovic, Z. and Šćepanović, Maja and Grujić-Brojčin, Mirjana and Matović, Branko and Bošković, Snežana B. and Popvic, Z. V.",
year = "2007",
abstract = "A series of Ce1-xBaxO2-y (5 LT = x LT = 0.20) nanometric powders were synthesized by self-propagating room temperature synthesis. XRD and Raman scattering measurements were used to characterize the samples. at room temperature. All the samples are solid solutions with fluorite type structure with an average crystallite size about 5 nm. The redshift and asymmetric broadening of the Raman F g mode can be well explained with combined confinement and strain effects because of the nanocrystalline powders nature. The appearance of the additional peaks at similar to 560 cm(-1) and similar to 600 cm(-1), are attributed to extrinsic and intrinsic O2- vacancies in ceria lattice. Raman spectra of temperature treated Ce0.80Ba0.20O2-delta sample revealed the instability of this system.",
journal = "Science of Sintering",
title = "Raman study of Ba-doped ceria nanopowders",
volume = "39",
number = "3",
pages = "281-286",
doi = "10.2298/SOS0703281R"
}

Radović, M. B., Dohcevic-Mitrovic, Z., Šćepanović, M., Grujić-Brojčin, M., Matović, B., Bošković, S. B.,& Popvic, Z. V.. (2007). Raman study of Ba-doped ceria nanopowders. in Science of Sintering, 39(3), 281-286.
https://doi.org/10.2298/SOS0703281R

Radović MB, Dohcevic-Mitrovic Z, Šćepanović M, Grujić-Brojčin M, Matović B, Bošković SB, Popvic ZV. Raman study of Ba-doped ceria nanopowders. in Science of Sintering. 2007;39(3):281-286.
doi:10.2298/SOS0703281R .

Radović, Marko B., Dohcevic-Mitrovic, Z., Šćepanović, Maja, Grujić-Brojčin, Mirjana, Matović, Branko, Bošković, Snežana B., Popvic, Z. V., "Raman study of Ba-doped ceria nanopowders" in Science of Sintering, 39, no. 3 (2007):281-286,
https://doi.org/10.2298/SOS0703281R . .

TY  - JOUR
AU  - Bošković, Snežana B.
AU  - Đurović, Dejan R.
AU  - Matović, Branko
AU  - Cancarević, Marija
AU  - Dohcevic-Mitrovic, Z.
AU  - Popović, Zoran V.
AU  - Zinkevich, M.
AU  - Aldinger, Fritz
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6597
AB  - One of the methods for powder synthesis that is both cost and time effective is the self-propagating room temperature synthesis. We applied this method to synthesize rare earth doped ceria nanopowders. Since they exhibit very high ionic conductivity at intermediate temperatures these compositions are attractive for a new generation of nanostructured ceramics applicable in solid oxide fuel cells as electrolytes. In this paper we paid our attention to the reaction based on methathetical pathway, whereby solid solution nanopowders of rare earth elements with ceria were obtained at room temperature. Compositions of Ce1-xRexO2-delta (Re = Y, Nd) were synthesized with x ranging from 0 to 0.20. The reaction course is discussed and the properties of the obtained powders are presented.
T2  - Materials Science Forum
T1  - Reaction of Ce1-xRexO2-delta nanopowders synthesis
VL  - 518
SP  - 95
EP  - 100
DO  - 10.4028/www.scientific.net/MSF.518.95
ER  - 

@article{
author = "Bošković, Snežana B. and Đurović, Dejan R. and Matović, Branko and Cancarević, Marija and Dohcevic-Mitrovic, Z. and Popović, Zoran V. and Zinkevich, M. and Aldinger, Fritz",
year = "2006",
abstract = "One of the methods for powder synthesis that is both cost and time effective is the self-propagating room temperature synthesis. We applied this method to synthesize rare earth doped ceria nanopowders. Since they exhibit very high ionic conductivity at intermediate temperatures these compositions are attractive for a new generation of nanostructured ceramics applicable in solid oxide fuel cells as electrolytes. In this paper we paid our attention to the reaction based on methathetical pathway, whereby solid solution nanopowders of rare earth elements with ceria were obtained at room temperature. Compositions of Ce1-xRexO2-delta (Re = Y, Nd) were synthesized with x ranging from 0 to 0.20. The reaction course is discussed and the properties of the obtained powders are presented.",
journal = "Materials Science Forum",
title = "Reaction of Ce1-xRexO2-delta nanopowders synthesis",
volume = "518",
pages = "95-100",
doi = "10.4028/www.scientific.net/MSF.518.95"
}

Bošković, S. B., Đurović, D. R., Matović, B., Cancarević, M., Dohcevic-Mitrovic, Z., Popović, Z. V., Zinkevich, M.,& Aldinger, F.. (2006). Reaction of Ce1-xRexO2-delta nanopowders synthesis. in Materials Science Forum, 518, 95-100.
https://doi.org/10.4028/www.scientific.net/MSF.518.95

Bošković SB, Đurović DR, Matović B, Cancarević M, Dohcevic-Mitrovic Z, Popović ZV, Zinkevich M, Aldinger F. Reaction of Ce1-xRexO2-delta nanopowders synthesis. in Materials Science Forum. 2006;518:95-100.
doi:10.4028/www.scientific.net/MSF.518.95 .

Bošković, Snežana B., Đurović, Dejan R., Matović, Branko, Cancarević, Marija, Dohcevic-Mitrovic, Z., Popović, Zoran V., Zinkevich, M., Aldinger, Fritz, "Reaction of Ce1-xRexO2-delta nanopowders synthesis" in Materials Science Forum, 518 (2006):95-100,
https://doi.org/10.4028/www.scientific.net/MSF.518.95 . .