Vučinić-Vasić, Milica

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Authority KeyName Variants
orcid::0000-0001-7113-3415
  • Vučinić-Vasić, Milica (23)
Projects
Magnetic and radionuclide labeled nanostructured materials for medical applications Combinatorial libraries of heterogeneous catalysts, natural products, and their derivatives and analogues: the way to biologically active compounds
Materials of Reduced Dimensions for Efficient Light Harvesting and Energy conversion APVV [0189-10]
DFG within the framework of the Priority Program Crystalline None quilibrium Phases [SPP 1415], VEGA [2/0097/13, 2/0097/14], APVV [14-0103, 0528-11], DAAD Rational design and synthesis of biologically active and coordination compounds and functional materials, relevant for (bio)nanotechnology
Magmatism and geodynamics of the Balkan Peninsula from Mesozoic to present day: significance for the formation of metallic and non-metallic mineral deposits Characterisation of Kinetics and Influence of Emerging Pollutants of Waste Flow in Graphic Industry
Serbian Academy of Sciences and Arts Serbian Ministry of Science and Technology, SCOPES [IZ73Z0_1 27961]
Serbian Ministry of Science and Technology, SCOPES project [IZ73Z0_1 27961] Serbian Ministry of Science and Technology, SCOPES project [IZ73Z0_1 27961], CEEPUS project [CII-AT-0038-01-0506-M-2329], LAssociation des Diplomes de lEnseignement superieur Francais - ADEF
Serbian Ministry of Science, CEEPUS [CII-AT-0038-01-0506-M-2329] Swiss National Science Foundation [IZ73Z0_1 27961]
The Serbian Ministry of Science and Technological Development The Serbian Ministry of Science, CEEPUS [CII-AT-0038-01-0506-M-2329]
U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-98CH10886], U.S. Department of Energy, Office of Science [DE-AC02-06CH11357]

Author's Bibliography

Hydroxyapatite/iron oxide nanocomposite prepared by high energy ball milling

Vučinić-Vasić, Milica; Antić, Bratislav; Bošković, Marko; Antić, Aleksandar; Blanuša, Jovan

(2019)

TY  - JOUR
AU  - Vučinić-Vasić, Milica
AU  - Antić, Bratislav
AU  - Bošković, Marko
AU  - Antić, Aleksandar
AU  - Blanuša, Jovan
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8461
AB  - Nanocomposites (HAp/iron oxide), made of hydroxyapatite (HAp) and ferrimagnetic iron oxide, were synthesized by high-energy ball milling a mixture consisting of iron oxide nanoparticles and the starting materials used for the HAp synthesis: calcium hydrogen phosphate anhydrous (CaHPO4), and calcium hydroxide (Ca(OH)2). Two HAp/iron oxide samples with the magnetic phase content of 12 and 30 wt.% were prepared and their microstructure, morphology and magnetic properties were analysed by X-ray diffraction and transmission electron microscopy. Furthermore, the measurement of particle size distribution was performed by laser scattering, and temperature/field dependence on magnetization was determined. X-ray diffraction data confirmed the formation of two-phased samples (HAp and spinel iron oxide) without the presence of any other parasite phase. The shape of particles was nearly spherical in both samples, ranging from only a few to several tens of nanometres in diameter. These particles formed agglomerates with the most common value of the number-based particle size distribution of 380 and 310 nm for the sample with 12 and 30 wt.% of iron oxide, respectively. Magnetization data showed that both HAp/iron oxide composites had superparamagnetic behaviour at room temperature. © 2019 University of Novi Sad, Faculty of Technology. All rights reserved.
T2  - Processing and Application of Ceramics
T1  - Hydroxyapatite/iron oxide nanocomposite prepared by high energy ball milling
VL  - 13
IS  - 2
SP  - 210
EP  - 217
DO  - 10.2298/PAC1902210V
ER  - 
@article{
author = "Vučinić-Vasić, Milica and Antić, Bratislav and Bošković, Marko and Antić, Aleksandar and Blanuša, Jovan",
year = "2019",
abstract = "Nanocomposites (HAp/iron oxide), made of hydroxyapatite (HAp) and ferrimagnetic iron oxide, were synthesized by high-energy ball milling a mixture consisting of iron oxide nanoparticles and the starting materials used for the HAp synthesis: calcium hydrogen phosphate anhydrous (CaHPO4), and calcium hydroxide (Ca(OH)2). Two HAp/iron oxide samples with the magnetic phase content of 12 and 30 wt.% were prepared and their microstructure, morphology and magnetic properties were analysed by X-ray diffraction and transmission electron microscopy. Furthermore, the measurement of particle size distribution was performed by laser scattering, and temperature/field dependence on magnetization was determined. X-ray diffraction data confirmed the formation of two-phased samples (HAp and spinel iron oxide) without the presence of any other parasite phase. The shape of particles was nearly spherical in both samples, ranging from only a few to several tens of nanometres in diameter. These particles formed agglomerates with the most common value of the number-based particle size distribution of 380 and 310 nm for the sample with 12 and 30 wt.% of iron oxide, respectively. Magnetization data showed that both HAp/iron oxide composites had superparamagnetic behaviour at room temperature. © 2019 University of Novi Sad, Faculty of Technology. All rights reserved.",
journal = "Processing and Application of Ceramics",
title = "Hydroxyapatite/iron oxide nanocomposite prepared by high energy ball milling",
volume = "13",
number = "2",
pages = "210-217",
doi = "10.2298/PAC1902210V"
}
Vučinić-Vasić, M., Antić, B., Bošković, M., Antić, A.,& Blanuša, J.. (2019). Hydroxyapatite/iron oxide nanocomposite prepared by high energy ball milling. in Processing and Application of Ceramics, 13(2), 210-217.
https://doi.org/10.2298/PAC1902210V
Vučinić-Vasić M, Antić B, Bošković M, Antić A, Blanuša J. Hydroxyapatite/iron oxide nanocomposite prepared by high energy ball milling. in Processing and Application of Ceramics. 2019;13(2):210-217.
doi:10.2298/PAC1902210V .
Vučinić-Vasić, Milica, Antić, Bratislav, Bošković, Marko, Antić, Aleksandar, Blanuša, Jovan, "Hydroxyapatite/iron oxide nanocomposite prepared by high energy ball milling" in Processing and Application of Ceramics, 13, no. 2 (2019):210-217,
https://doi.org/10.2298/PAC1902210V . .
8
2
7

Mechanosynthesis and structural characterization of nanocrystalline Ce1-xYxO2-delta(x=0.1-0.35) solid solutions

Fabian, Martin; Antić, Bratislav; Girman, Vladimir; Vučinić-Vasić, Milica; Kremenović, Aleksandar S.; Suzuki, Shigeru; Hahn, Horst; Sepelak, Vladimir

(2015)

TY  - JOUR
AU  - Fabian, Martin
AU  - Antić, Bratislav
AU  - Girman, Vladimir
AU  - Vučinić-Vasić, Milica
AU  - Kremenović, Aleksandar S.
AU  - Suzuki, Shigeru
AU  - Hahn, Horst
AU  - Sepelak, Vladimir
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/718
AB  - A series of nanostructured fluorite-type Ce1-xYxO2-delta(0 LT = x LT = 0.35) solid solutions, prepared via high-energy milling of the CeO2/Y2O3 mixtures, are investigated by XRD, HR-TEM, EDS and Raman spectroscopy. For the first time, complementary information on both the long-range and short-range structural features of mechanosynthesized Ce1-xYxO2-delta, obtained by Rietveld analysis of XRD data and Raman spectroscopy, is provided. The lattice parameters of the as-prepared solid solutions decrease with increasing yttrium content. Rietveld refinements of the XRD data reveal increase in microstrains in the host ceria lattice as a consequence of yttrium incorporation. Raman spectra are directly affected by the presence of oxygen vacancies; their existence is evidenced by the presence of vibration modes at similar to 560 and similar to 600 cm(-1). The detailed spectroscopic investigations enable us to separate extrinsic and intrinsic origin of oxygen vacancies. It is demonstrated that mechanosynthesis can be successfully employed in the one-step preparation of nanocrystalline Ce1-xYxO2-delta solid solutions. (C) 2015 Elsevier Inc. All rights reserved.
T2  - Journal of Solid State Chemistry
T1  - Mechanosynthesis and structural characterization of nanocrystalline Ce1-xYxO2-delta(x=0.1-0.35) solid solutions
VL  - 230
SP  - 42
EP  - 48
DO  - 10.1016/j.jssc.2015.06.027
ER  - 
@article{
author = "Fabian, Martin and Antić, Bratislav and Girman, Vladimir and Vučinić-Vasić, Milica and Kremenović, Aleksandar S. and Suzuki, Shigeru and Hahn, Horst and Sepelak, Vladimir",
year = "2015",
abstract = "A series of nanostructured fluorite-type Ce1-xYxO2-delta(0 LT = x LT = 0.35) solid solutions, prepared via high-energy milling of the CeO2/Y2O3 mixtures, are investigated by XRD, HR-TEM, EDS and Raman spectroscopy. For the first time, complementary information on both the long-range and short-range structural features of mechanosynthesized Ce1-xYxO2-delta, obtained by Rietveld analysis of XRD data and Raman spectroscopy, is provided. The lattice parameters of the as-prepared solid solutions decrease with increasing yttrium content. Rietveld refinements of the XRD data reveal increase in microstrains in the host ceria lattice as a consequence of yttrium incorporation. Raman spectra are directly affected by the presence of oxygen vacancies; their existence is evidenced by the presence of vibration modes at similar to 560 and similar to 600 cm(-1). The detailed spectroscopic investigations enable us to separate extrinsic and intrinsic origin of oxygen vacancies. It is demonstrated that mechanosynthesis can be successfully employed in the one-step preparation of nanocrystalline Ce1-xYxO2-delta solid solutions. (C) 2015 Elsevier Inc. All rights reserved.",
journal = "Journal of Solid State Chemistry",
title = "Mechanosynthesis and structural characterization of nanocrystalline Ce1-xYxO2-delta(x=0.1-0.35) solid solutions",
volume = "230",
pages = "42-48",
doi = "10.1016/j.jssc.2015.06.027"
}
Fabian, M., Antić, B., Girman, V., Vučinić-Vasić, M., Kremenović, A. S., Suzuki, S., Hahn, H.,& Sepelak, V.. (2015). Mechanosynthesis and structural characterization of nanocrystalline Ce1-xYxO2-delta(x=0.1-0.35) solid solutions. in Journal of Solid State Chemistry, 230, 42-48.
https://doi.org/10.1016/j.jssc.2015.06.027
Fabian M, Antić B, Girman V, Vučinić-Vasić M, Kremenović AS, Suzuki S, Hahn H, Sepelak V. Mechanosynthesis and structural characterization of nanocrystalline Ce1-xYxO2-delta(x=0.1-0.35) solid solutions. in Journal of Solid State Chemistry. 2015;230:42-48.
doi:10.1016/j.jssc.2015.06.027 .
Fabian, Martin, Antić, Bratislav, Girman, Vladimir, Vučinić-Vasić, Milica, Kremenović, Aleksandar S., Suzuki, Shigeru, Hahn, Horst, Sepelak, Vladimir, "Mechanosynthesis and structural characterization of nanocrystalline Ce1-xYxO2-delta(x=0.1-0.35) solid solutions" in Journal of Solid State Chemistry, 230 (2015):42-48,
https://doi.org/10.1016/j.jssc.2015.06.027 . .
23
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22

Photocatalytic decolorisation of selected organic dyes by mesoporous tio2 thin films

Zarubica, Aleksandra R.; Vučinić-Vasić, Milica; Marinković, Miloš; Stojković, Nikola; Nedeljković, Jovan

(Society of Physical Chemists of Serbia, 2014)

TY  - CONF
AU  - Zarubica, Aleksandra R.
AU  - Vučinić-Vasić, Milica
AU  - Marinković, Miloš
AU  - Stojković, Nikola
AU  - Nedeljković, Jovan
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9187
AB  - The mesoporous TiO2 films were prepared by dip coating technique
combined with the evaporation-induced self-assembly method using
selected polymer templates. Influence of specific surface area, pore size,
(nano)crystal structure and morphology of TiO2 films on the photocatalytic
behaviour was investigated. In addition, particular process parameters were
considered in decolorisation of organic dyes, such as: thickness of TiO2
films, initial concentration of selected pollutants and number of reaction
cycles.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
T1  - Photocatalytic decolorisation of selected organic dyes by mesoporous tio2 thin films
VL  - C-16-P
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9187
ER  - 
@conference{
author = "Zarubica, Aleksandra R. and Vučinić-Vasić, Milica and Marinković, Miloš and Stojković, Nikola and Nedeljković, Jovan",
year = "2014",
abstract = "The mesoporous TiO2 films were prepared by dip coating technique
combined with the evaporation-induced self-assembly method using
selected polymer templates. Influence of specific surface area, pore size,
(nano)crystal structure and morphology of TiO2 films on the photocatalytic
behaviour was investigated. In addition, particular process parameters were
considered in decolorisation of organic dyes, such as: thickness of TiO2
films, initial concentration of selected pollutants and number of reaction
cycles.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry",
title = "Photocatalytic decolorisation of selected organic dyes by mesoporous tio2 thin films",
volume = "C-16-P",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9187"
}
Zarubica, A. R., Vučinić-Vasić, M., Marinković, M., Stojković, N.,& Nedeljković, J.. (2014). Photocatalytic decolorisation of selected organic dyes by mesoporous tio2 thin films. in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
Society of Physical Chemists of Serbia., C-16-P.
https://hdl.handle.net/21.15107/rcub_vinar_9187
Zarubica AR, Vučinić-Vasić M, Marinković M, Stojković N, Nedeljković J. Photocatalytic decolorisation of selected organic dyes by mesoporous tio2 thin films. in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry. 2014;C-16-P.
https://hdl.handle.net/21.15107/rcub_vinar_9187 .
Zarubica, Aleksandra R., Vučinić-Vasić, Milica, Marinković, Miloš, Stojković, Nikola, Nedeljković, Jovan, "Photocatalytic decolorisation of selected organic dyes by mesoporous tio2 thin films" in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry, C-16-P (2014),
https://hdl.handle.net/21.15107/rcub_vinar_9187 .

Design and photocatalytic ability of ordered mesoporous TiO2 thin films

Zarubica, Aleksandra R.; Vučinić-Vasić, Milica; Antonijević, Milan D.; Ranđelović, Marjan S.; Momčilović, Milan Z.; Krstić, Jugoslav B.; Nedeljković, Jovan

(2014)

TY  - JOUR
AU  - Zarubica, Aleksandra R.
AU  - Vučinić-Vasić, Milica
AU  - Antonijević, Milan D.
AU  - Ranđelović, Marjan S.
AU  - Momčilović, Milan Z.
AU  - Krstić, Jugoslav B.
AU  - Nedeljković, Jovan
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/95
AB  - Homogeneous and crack-free TiO2 films with templated mesoporosity were prepared by the dip coating technique using an evaporation-induced, self-assembly method. The synthesized mesoporous TiO2 films were characterized using SEM/TEM, BET and XRD techniques. Degradation reactions of methylene blue and crystal violet dyes were used to test the photocatalytic capability of mesoporous TiO2 films. The degradation kinetics of methylene blue and crystal violet were investigated over a broad range of initial concentrations of the organic dyes. The kinetic data were correlated with the specific surface area and thickness of mesoporous TiO2 films, as well as number of reaction cycles. (C) 2014 Elsevier Ltd. All rights reserved.
T2  - Materials Research Bulletin
T1  - Design and photocatalytic ability of ordered mesoporous TiO2 thin films
VL  - 57
SP  - 146
EP  - 151
DO  - 10.1016/j.materresbull.2014.03.015
ER  - 
@article{
author = "Zarubica, Aleksandra R. and Vučinić-Vasić, Milica and Antonijević, Milan D. and Ranđelović, Marjan S. and Momčilović, Milan Z. and Krstić, Jugoslav B. and Nedeljković, Jovan",
year = "2014",
abstract = "Homogeneous and crack-free TiO2 films with templated mesoporosity were prepared by the dip coating technique using an evaporation-induced, self-assembly method. The synthesized mesoporous TiO2 films were characterized using SEM/TEM, BET and XRD techniques. Degradation reactions of methylene blue and crystal violet dyes were used to test the photocatalytic capability of mesoporous TiO2 films. The degradation kinetics of methylene blue and crystal violet were investigated over a broad range of initial concentrations of the organic dyes. The kinetic data were correlated with the specific surface area and thickness of mesoporous TiO2 films, as well as number of reaction cycles. (C) 2014 Elsevier Ltd. All rights reserved.",
journal = "Materials Research Bulletin",
title = "Design and photocatalytic ability of ordered mesoporous TiO2 thin films",
volume = "57",
pages = "146-151",
doi = "10.1016/j.materresbull.2014.03.015"
}
Zarubica, A. R., Vučinić-Vasić, M., Antonijević, M. D., Ranđelović, M. S., Momčilović, M. Z., Krstić, J. B.,& Nedeljković, J.. (2014). Design and photocatalytic ability of ordered mesoporous TiO2 thin films. in Materials Research Bulletin, 57, 146-151.
https://doi.org/10.1016/j.materresbull.2014.03.015
Zarubica AR, Vučinić-Vasić M, Antonijević MD, Ranđelović MS, Momčilović MZ, Krstić JB, Nedeljković J. Design and photocatalytic ability of ordered mesoporous TiO2 thin films. in Materials Research Bulletin. 2014;57:146-151.
doi:10.1016/j.materresbull.2014.03.015 .
Zarubica, Aleksandra R., Vučinić-Vasić, Milica, Antonijević, Milan D., Ranđelović, Marjan S., Momčilović, Milan Z., Krstić, Jugoslav B., Nedeljković, Jovan, "Design and photocatalytic ability of ordered mesoporous TiO2 thin films" in Materials Research Bulletin, 57 (2014):146-151,
https://doi.org/10.1016/j.materresbull.2014.03.015 . .
1
14
12
14

Temperature induced evolution of structure/microstructure parameters and their correlations with electric/magnetic properties of nanocrystalline Nickel ferrite

Vučinić-Vasić, Milica; Bošković, Marko; Antić, Aleksandar; Stojanović, Goran; Radovanović, Milan; Fabian, Martin; Jovalekić, Čedomir; Pavlović, Miodrag B.; Antić, Bratislav

(2014)

TY  - JOUR
AU  - Vučinić-Vasić, Milica
AU  - Bošković, Marko
AU  - Antić, Aleksandar
AU  - Stojanović, Goran
AU  - Radovanović, Milan
AU  - Fabian, Martin
AU  - Jovalekić, Čedomir
AU  - Pavlović, Miodrag B.
AU  - Antić, Bratislav
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5873
AB  - Nickel ferrite nanoparticles were annealed in order to find dependence of electric/magnetic properties on crystallite size. The following correlations of crystallite size with physical parameters were found: (a) lattice parameter decreases with the increase in size and it reaches value for bulk counterpart approximately for crystallites bigger than 7 nm, (b) ac electrical resistivity at room temperature increases with the increase in crystallite size, (c) for crystallites of similar to 7 nm or smaller electrical resistivity have maximum value at 50 degrees C, (d) the real part of permittivity at selected frequency generally decreases with the increase in crystallite size and (e) magnetization increases with the increase in crystallite size. Deviation of stoichiometry, cation polyvalence, and cation redistribution with annealing are the main factors that influence physical properties of Nickel ferrite nanoparticles. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
T2  - Ceramics International
T1  - Temperature induced evolution of structure/microstructure parameters and their correlations with electric/magnetic properties of nanocrystalline Nickel ferrite
VL  - 40
IS  - 3
SP  - 4521
EP  - 4527
DO  - 10.1016/j.ceramint.2013.08.127
ER  - 
@article{
author = "Vučinić-Vasić, Milica and Bošković, Marko and Antić, Aleksandar and Stojanović, Goran and Radovanović, Milan and Fabian, Martin and Jovalekić, Čedomir and Pavlović, Miodrag B. and Antić, Bratislav",
year = "2014",
abstract = "Nickel ferrite nanoparticles were annealed in order to find dependence of electric/magnetic properties on crystallite size. The following correlations of crystallite size with physical parameters were found: (a) lattice parameter decreases with the increase in size and it reaches value for bulk counterpart approximately for crystallites bigger than 7 nm, (b) ac electrical resistivity at room temperature increases with the increase in crystallite size, (c) for crystallites of similar to 7 nm or smaller electrical resistivity have maximum value at 50 degrees C, (d) the real part of permittivity at selected frequency generally decreases with the increase in crystallite size and (e) magnetization increases with the increase in crystallite size. Deviation of stoichiometry, cation polyvalence, and cation redistribution with annealing are the main factors that influence physical properties of Nickel ferrite nanoparticles. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
journal = "Ceramics International",
title = "Temperature induced evolution of structure/microstructure parameters and their correlations with electric/magnetic properties of nanocrystalline Nickel ferrite",
volume = "40",
number = "3",
pages = "4521-4527",
doi = "10.1016/j.ceramint.2013.08.127"
}
Vučinić-Vasić, M., Bošković, M., Antić, A., Stojanović, G., Radovanović, M., Fabian, M., Jovalekić, Č., Pavlović, M. B.,& Antić, B.. (2014). Temperature induced evolution of structure/microstructure parameters and their correlations with electric/magnetic properties of nanocrystalline Nickel ferrite. in Ceramics International, 40(3), 4521-4527.
https://doi.org/10.1016/j.ceramint.2013.08.127
Vučinić-Vasić M, Bošković M, Antić A, Stojanović G, Radovanović M, Fabian M, Jovalekić Č, Pavlović MB, Antić B. Temperature induced evolution of structure/microstructure parameters and their correlations with electric/magnetic properties of nanocrystalline Nickel ferrite. in Ceramics International. 2014;40(3):4521-4527.
doi:10.1016/j.ceramint.2013.08.127 .
Vučinić-Vasić, Milica, Bošković, Marko, Antić, Aleksandar, Stojanović, Goran, Radovanović, Milan, Fabian, Martin, Jovalekić, Čedomir, Pavlović, Miodrag B., Antić, Bratislav, "Temperature induced evolution of structure/microstructure parameters and their correlations with electric/magnetic properties of nanocrystalline Nickel ferrite" in Ceramics International, 40, no. 3 (2014):4521-4527,
https://doi.org/10.1016/j.ceramint.2013.08.127 . .
7
6
8

Mossbauer Spectra and Crystallite Size Related Magnetic/Electric Properties of Yb Substituted Zn-Ferrite Nanoparticles

Bošković, Marko; Perović, Marija M.; Vučinić-Vasić, Milica; Spasojević, Vojislav; Stojanovic, G.; Antić, Bratislav

(2014)

TY  - JOUR
AU  - Bošković, Marko
AU  - Perović, Marija M.
AU  - Vučinić-Vasić, Milica
AU  - Spasojević, Vojislav
AU  - Stojanovic, G.
AU  - Antić, Bratislav
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6005
AB  - Influence of thermal-annealing-controlled crystallite size on the magnetic/electric properties of Yb substituted Zn-ferrite nanoparticles (ZnFe1.95Yb0.05O4) is studied, and results of the analysis are presented here. Room temperature Mossbauer spectrum of as-prepared sample shows coexistence of the sextet/doublet structure due to the particle size distribution. The central doublet originating from superparamagnetic relaxations of smaller particles is found to constitute the major fraction of the Fe-57 signal in samples obtained by thermal annealing of as-prepared sample at various temperatures in 300 degrees C-800 degrees C range. The determined quadrupole splitting (QS) parameters are significantly higher compared to corresponding bulk counterpart value and display decreasing trend with the crystallite size increase. The similar to 29 nm-sample, obtained by annealing at 800 degrees C, shows bulk-like properties, both in terms of the observed QS value and observed distribution of iron ions within the spinel lattice. Electric resistivity has non-monotonic dependence on crystallite-size, which could be attributed to enhanced disorder in as-prepared material. Partial substitution of iron by ytterbium in Zn-ferrite is found to increase the dielectric constant.
T2  - Nanoscience and Nanotechnology Letters
T1  - Mossbauer Spectra and Crystallite Size Related Magnetic/Electric Properties of Yb Substituted Zn-Ferrite Nanoparticles
VL  - 6
IS  - 4
SP  - 314
EP  - 318
DO  - 10.1166/nnl.2014.1758
ER  - 
@article{
author = "Bošković, Marko and Perović, Marija M. and Vučinić-Vasić, Milica and Spasojević, Vojislav and Stojanovic, G. and Antić, Bratislav",
year = "2014",
abstract = "Influence of thermal-annealing-controlled crystallite size on the magnetic/electric properties of Yb substituted Zn-ferrite nanoparticles (ZnFe1.95Yb0.05O4) is studied, and results of the analysis are presented here. Room temperature Mossbauer spectrum of as-prepared sample shows coexistence of the sextet/doublet structure due to the particle size distribution. The central doublet originating from superparamagnetic relaxations of smaller particles is found to constitute the major fraction of the Fe-57 signal in samples obtained by thermal annealing of as-prepared sample at various temperatures in 300 degrees C-800 degrees C range. The determined quadrupole splitting (QS) parameters are significantly higher compared to corresponding bulk counterpart value and display decreasing trend with the crystallite size increase. The similar to 29 nm-sample, obtained by annealing at 800 degrees C, shows bulk-like properties, both in terms of the observed QS value and observed distribution of iron ions within the spinel lattice. Electric resistivity has non-monotonic dependence on crystallite-size, which could be attributed to enhanced disorder in as-prepared material. Partial substitution of iron by ytterbium in Zn-ferrite is found to increase the dielectric constant.",
journal = "Nanoscience and Nanotechnology Letters",
title = "Mossbauer Spectra and Crystallite Size Related Magnetic/Electric Properties of Yb Substituted Zn-Ferrite Nanoparticles",
volume = "6",
number = "4",
pages = "314-318",
doi = "10.1166/nnl.2014.1758"
}
Bošković, M., Perović, M. M., Vučinić-Vasić, M., Spasojević, V., Stojanovic, G.,& Antić, B.. (2014). Mossbauer Spectra and Crystallite Size Related Magnetic/Electric Properties of Yb Substituted Zn-Ferrite Nanoparticles. in Nanoscience and Nanotechnology Letters, 6(4), 314-318.
https://doi.org/10.1166/nnl.2014.1758
Bošković M, Perović MM, Vučinić-Vasić M, Spasojević V, Stojanovic G, Antić B. Mossbauer Spectra and Crystallite Size Related Magnetic/Electric Properties of Yb Substituted Zn-Ferrite Nanoparticles. in Nanoscience and Nanotechnology Letters. 2014;6(4):314-318.
doi:10.1166/nnl.2014.1758 .
Bošković, Marko, Perović, Marija M., Vučinić-Vasić, Milica, Spasojević, Vojislav, Stojanovic, G., Antić, Bratislav, "Mossbauer Spectra and Crystallite Size Related Magnetic/Electric Properties of Yb Substituted Zn-Ferrite Nanoparticles" in Nanoscience and Nanotechnology Letters, 6, no. 4 (2014):314-318,
https://doi.org/10.1166/nnl.2014.1758 . .
1
1

Comparative Structural and Optical Properties of Different Ceria Nanoparticles

Nikolić, Aleksandar S.; Bošković, Marko; Fabian, Martin; Božanić, Dušan K.; Vučinić-Vasić, Milica; Kremenović, Aleksandar S.; Antić, Bratislav

(2013)

TY  - JOUR
AU  - Nikolić, Aleksandar S.
AU  - Bošković, Marko
AU  - Fabian, Martin
AU  - Božanić, Dušan K.
AU  - Vučinić-Vasić, Milica
AU  - Kremenović, Aleksandar S.
AU  - Antić, Bratislav
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5813
AB  - Herein a comparative study of five nanocrystalline cerium oxides (CeO2-delta) synthesised by different methods and calcined at 500 degrees C is reported. XRPD analysis showed that stoichiometry parameter delta, crystallite size/strain and lattice constant were only slightly affected by the method utilized. All ceria nanoparticles are nearly spherical in shape with faceted morphology, free of defects and with a relatively uniform size distribution. The average microstrain was found to be approximately 10 times higher than that of bulk counterpart. The absorption edge of nanocrystalline materials was shifted towards a higher wavelengths (red shift) in comparison with bulk counterpart, and band gap values were in the range 2.7-3.24 eV (3.33 eV for bulk counterpart).
T2  - Journal of Nanoscience and Nanotechnology
T1  - Comparative Structural and Optical Properties of Different Ceria Nanoparticles
VL  - 13
IS  - 10
SP  - 6787
EP  - 6792
DO  - 10.1166/jnn.2013.7774
ER  - 
@article{
author = "Nikolić, Aleksandar S. and Bošković, Marko and Fabian, Martin and Božanić, Dušan K. and Vučinić-Vasić, Milica and Kremenović, Aleksandar S. and Antić, Bratislav",
year = "2013",
abstract = "Herein a comparative study of five nanocrystalline cerium oxides (CeO2-delta) synthesised by different methods and calcined at 500 degrees C is reported. XRPD analysis showed that stoichiometry parameter delta, crystallite size/strain and lattice constant were only slightly affected by the method utilized. All ceria nanoparticles are nearly spherical in shape with faceted morphology, free of defects and with a relatively uniform size distribution. The average microstrain was found to be approximately 10 times higher than that of bulk counterpart. The absorption edge of nanocrystalline materials was shifted towards a higher wavelengths (red shift) in comparison with bulk counterpart, and band gap values were in the range 2.7-3.24 eV (3.33 eV for bulk counterpart).",
journal = "Journal of Nanoscience and Nanotechnology",
title = "Comparative Structural and Optical Properties of Different Ceria Nanoparticles",
volume = "13",
number = "10",
pages = "6787-6792",
doi = "10.1166/jnn.2013.7774"
}
Nikolić, A. S., Bošković, M., Fabian, M., Božanić, D. K., Vučinić-Vasić, M., Kremenović, A. S.,& Antić, B.. (2013). Comparative Structural and Optical Properties of Different Ceria Nanoparticles. in Journal of Nanoscience and Nanotechnology, 13(10), 6787-6792.
https://doi.org/10.1166/jnn.2013.7774
Nikolić AS, Bošković M, Fabian M, Božanić DK, Vučinić-Vasić M, Kremenović AS, Antić B. Comparative Structural and Optical Properties of Different Ceria Nanoparticles. in Journal of Nanoscience and Nanotechnology. 2013;13(10):6787-6792.
doi:10.1166/jnn.2013.7774 .
Nikolić, Aleksandar S., Bošković, Marko, Fabian, Martin, Božanić, Dušan K., Vučinić-Vasić, Milica, Kremenović, Aleksandar S., Antić, Bratislav, "Comparative Structural and Optical Properties of Different Ceria Nanoparticles" in Journal of Nanoscience and Nanotechnology, 13, no. 10 (2013):6787-6792,
https://doi.org/10.1166/jnn.2013.7774 . .
1
1
1

The balance between acidity and tetragonal phase fraction in the favorable catalytic act of modified zirconia towards isomerized n-hexane(s)

Zarubica, Aleksandra R.; Ranđelović, Marjan S.; Momčilović, Milan Z.; Stojković, Nikola; Vučinić-Vasić, Milica; Radulovic, N.

(2013)

TY  - JOUR
AU  - Zarubica, Aleksandra R.
AU  - Ranđelović, Marjan S.
AU  - Momčilović, Milan Z.
AU  - Stojković, Nikola
AU  - Vučinić-Vasić, Milica
AU  - Radulovic, N.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5369
AB  - Zirconia-based catalysts were promoted by acid functions (sulfate and phosphate anions) and tested in order to establish catalyst efficiency in test reaction of n-hexane isomerization. The impact of surface and structural properties on the final catalytic performance is also investigated. It is proven that well-established balance between total catalyst acidity, acidic surface density and crystal phase nano-structure determines the catalytic activity in the reaction towards isomerized products. Type of acidic promoter strongly affects the resulted catalytic act. This stands for pyrosylfate groups in sulfated zirconia catalysts and orthophosphate groups in phosphated zirconia catalysts both essential in the favorable reaction run.
T2  - Optoelectronics and Advanced Materials - Rapid Communications
T1  - The balance between acidity and tetragonal phase fraction in the favorable catalytic act of modified zirconia towards isomerized n-hexane(s)
VL  - 7
IS  - 1-2
SP  - 62
EP  - 69
UR  - https://hdl.handle.net/21.15107/rcub_vinar_5369
ER  - 
@article{
author = "Zarubica, Aleksandra R. and Ranđelović, Marjan S. and Momčilović, Milan Z. and Stojković, Nikola and Vučinić-Vasić, Milica and Radulovic, N.",
year = "2013",
abstract = "Zirconia-based catalysts were promoted by acid functions (sulfate and phosphate anions) and tested in order to establish catalyst efficiency in test reaction of n-hexane isomerization. The impact of surface and structural properties on the final catalytic performance is also investigated. It is proven that well-established balance between total catalyst acidity, acidic surface density and crystal phase nano-structure determines the catalytic activity in the reaction towards isomerized products. Type of acidic promoter strongly affects the resulted catalytic act. This stands for pyrosylfate groups in sulfated zirconia catalysts and orthophosphate groups in phosphated zirconia catalysts both essential in the favorable reaction run.",
journal = "Optoelectronics and Advanced Materials - Rapid Communications",
title = "The balance between acidity and tetragonal phase fraction in the favorable catalytic act of modified zirconia towards isomerized n-hexane(s)",
volume = "7",
number = "1-2",
pages = "62-69",
url = "https://hdl.handle.net/21.15107/rcub_vinar_5369"
}
Zarubica, A. R., Ranđelović, M. S., Momčilović, M. Z., Stojković, N., Vučinić-Vasić, M.,& Radulovic, N.. (2013). The balance between acidity and tetragonal phase fraction in the favorable catalytic act of modified zirconia towards isomerized n-hexane(s). in Optoelectronics and Advanced Materials - Rapid Communications, 7(1-2), 62-69.
https://hdl.handle.net/21.15107/rcub_vinar_5369
Zarubica AR, Ranđelović MS, Momčilović MZ, Stojković N, Vučinić-Vasić M, Radulovic N. The balance between acidity and tetragonal phase fraction in the favorable catalytic act of modified zirconia towards isomerized n-hexane(s). in Optoelectronics and Advanced Materials - Rapid Communications. 2013;7(1-2):62-69.
https://hdl.handle.net/21.15107/rcub_vinar_5369 .
Zarubica, Aleksandra R., Ranđelović, Marjan S., Momčilović, Milan Z., Stojković, Nikola, Vučinić-Vasić, Milica, Radulovic, N., "The balance between acidity and tetragonal phase fraction in the favorable catalytic act of modified zirconia towards isomerized n-hexane(s)" in Optoelectronics and Advanced Materials - Rapid Communications, 7, no. 1-2 (2013):62-69,
https://hdl.handle.net/21.15107/rcub_vinar_5369 .

Thermal Evolution of Cation Distribution/Crystallite Size and Their Correlation with the Magnetic State of Yb-Substituted Zinc Ferrite Nanoparticles

Vučinić-Vasić, Milica; Božin, Emil S.; Bessais, Lotfi; Stojanovic, G.; Kozmidis-Luburic, U.; Abeykoon, M.; Jančar, Boštjan; Meden, A.; Kremenović, Aleksandar S.; Antić, Bratislav

(2013)

TY  - JOUR
AU  - Vučinić-Vasić, Milica
AU  - Božin, Emil S.
AU  - Bessais, Lotfi
AU  - Stojanovic, G.
AU  - Kozmidis-Luburic, U.
AU  - Abeykoon, M.
AU  - Jančar, Boštjan
AU  - Meden, A.
AU  - Kremenović, Aleksandar S.
AU  - Antić, Bratislav
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5555
AB  - Evolution of the structural and magnetic properties of ZnFe1.95Yb0.05O4 nanoparticles, prepared via a high-energy ball milling route and exposed to further thermal annealing/heating, was assessed in detail and correlation of these properties explored. inversion, heating of the sample to similar to 500 degrees C is found to rapidly alter the cation distribution from mixed to normal, in agreement with the known cation preferences. Under the same conditions the crystallite size only slowly grows. By further thermal treatment appreciably. An interrelationship among the lattice parameter, octahedral site occupancy, and crystallite size has been established. The observations are (a) both the site occupancy of Fe3+ at octahedral 16d spinel sites (N-16d(Fe3+)) and the cubic lattice parameter rapidly increase with an initial increase of the crystallite size, (b) the lattice parameter increases with increasing occupancy, N-16d(Fe3+), and (c) there appears to be a critical nanoparticle diameter (approximately 15 nm) above which both the site occupancy and lattice parameter values are saturated. The magnetic behavior of the annealed samples appears to be correlated to the evolution of both the cation distribution and crystallite size, as follows. As-prepared samples and those annealed at lower temperatures show superparamagnetic behavior at room temperature, presumably as a consequence of the Fe3+ distribution and strong Fe3+(8a)-O-Fe3+(16d) superexchange interactions. Samples with a nanopartide diameter greater than 12 nm and with almost normal distributions exhibit the paramagnetic state. The coercive field is found to decrease with an increase of the crystallite size. Partial Yb3+/Fe3+ substitution is found to increase the inversion parameter and saturation magnetization. Detailed knowledge of the thermal evolution of structural/microstructural parameters allows control over the cation distribution and crystallite size and hence the magnetic properties of nanoferrites.
T2  - Journal of Physical Chemistry. C
T1  - Thermal Evolution of Cation Distribution/Crystallite Size and Their Correlation with the Magnetic State of Yb-Substituted Zinc Ferrite Nanoparticles
VL  - 117
IS  - 23
SP  - 12358
EP  - 12365
DO  - 10.1021/jp403459t
ER  - 
@article{
author = "Vučinić-Vasić, Milica and Božin, Emil S. and Bessais, Lotfi and Stojanovic, G. and Kozmidis-Luburic, U. and Abeykoon, M. and Jančar, Boštjan and Meden, A. and Kremenović, Aleksandar S. and Antić, Bratislav",
year = "2013",
abstract = "Evolution of the structural and magnetic properties of ZnFe1.95Yb0.05O4 nanoparticles, prepared via a high-energy ball milling route and exposed to further thermal annealing/heating, was assessed in detail and correlation of these properties explored. inversion, heating of the sample to similar to 500 degrees C is found to rapidly alter the cation distribution from mixed to normal, in agreement with the known cation preferences. Under the same conditions the crystallite size only slowly grows. By further thermal treatment appreciably. An interrelationship among the lattice parameter, octahedral site occupancy, and crystallite size has been established. The observations are (a) both the site occupancy of Fe3+ at octahedral 16d spinel sites (N-16d(Fe3+)) and the cubic lattice parameter rapidly increase with an initial increase of the crystallite size, (b) the lattice parameter increases with increasing occupancy, N-16d(Fe3+), and (c) there appears to be a critical nanoparticle diameter (approximately 15 nm) above which both the site occupancy and lattice parameter values are saturated. The magnetic behavior of the annealed samples appears to be correlated to the evolution of both the cation distribution and crystallite size, as follows. As-prepared samples and those annealed at lower temperatures show superparamagnetic behavior at room temperature, presumably as a consequence of the Fe3+ distribution and strong Fe3+(8a)-O-Fe3+(16d) superexchange interactions. Samples with a nanopartide diameter greater than 12 nm and with almost normal distributions exhibit the paramagnetic state. The coercive field is found to decrease with an increase of the crystallite size. Partial Yb3+/Fe3+ substitution is found to increase the inversion parameter and saturation magnetization. Detailed knowledge of the thermal evolution of structural/microstructural parameters allows control over the cation distribution and crystallite size and hence the magnetic properties of nanoferrites.",
journal = "Journal of Physical Chemistry. C",
title = "Thermal Evolution of Cation Distribution/Crystallite Size and Their Correlation with the Magnetic State of Yb-Substituted Zinc Ferrite Nanoparticles",
volume = "117",
number = "23",
pages = "12358-12365",
doi = "10.1021/jp403459t"
}
Vučinić-Vasić, M., Božin, E. S., Bessais, L., Stojanovic, G., Kozmidis-Luburic, U., Abeykoon, M., Jančar, B., Meden, A., Kremenović, A. S.,& Antić, B.. (2013). Thermal Evolution of Cation Distribution/Crystallite Size and Their Correlation with the Magnetic State of Yb-Substituted Zinc Ferrite Nanoparticles. in Journal of Physical Chemistry. C, 117(23), 12358-12365.
https://doi.org/10.1021/jp403459t
Vučinić-Vasić M, Božin ES, Bessais L, Stojanovic G, Kozmidis-Luburic U, Abeykoon M, Jančar B, Meden A, Kremenović AS, Antić B. Thermal Evolution of Cation Distribution/Crystallite Size and Their Correlation with the Magnetic State of Yb-Substituted Zinc Ferrite Nanoparticles. in Journal of Physical Chemistry. C. 2013;117(23):12358-12365.
doi:10.1021/jp403459t .
Vučinić-Vasić, Milica, Božin, Emil S., Bessais, Lotfi, Stojanovic, G., Kozmidis-Luburic, U., Abeykoon, M., Jančar, Boštjan, Meden, A., Kremenović, Aleksandar S., Antić, Bratislav, "Thermal Evolution of Cation Distribution/Crystallite Size and Their Correlation with the Magnetic State of Yb-Substituted Zinc Ferrite Nanoparticles" in Journal of Physical Chemistry. C, 117, no. 23 (2013):12358-12365,
https://doi.org/10.1021/jp403459t . .
29
20
26

Exchange-Bias and Grain-Surface Relaxations in Nanostructured NiO/Ni Induced by a Particle Size Reduction

Kremenović, Aleksandar S.; Jančar, Boštjan; Ristić, Mira; Vučinić-Vasić, Milica; Rogan, Jelena R.; Pacevski, Aleksandar; Antić, Bratislav

(2012)

TY  - JOUR
AU  - Kremenović, Aleksandar S.
AU  - Jančar, Boštjan
AU  - Ristić, Mira
AU  - Vučinić-Vasić, Milica
AU  - Rogan, Jelena R.
AU  - Pacevski, Aleksandar
AU  - Antić, Bratislav
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4726
AB  - Transition-metal-oxide/transition-metal nanocomposites, such as NiO/Ni, FeO/Fe, and CoO/Co, have been the subject of much recent investigation (i) because of their potential applications and (ii) because they are good model systems for studies of some effects on the nanoscale. They are used, for example, as catalysts, fuel-cell electrodes, magnetic memories, etc. When a nanocomposite is composed of both ferromagnetic (FM) and antiferromagnetic (AFM) nanoparticles, interesting physical properties can occur, such as the phenomenon of exchange bias (EB). A Ni/NiO nanocomposite obtained by the thermal decomposition of nickel(II) acetate tetrahydrate, Ni(CH3COO)(2)center dot 4H(2)O, at 300 degrees C, is composed of NiO (62%) and Ni (38%) with crystallite sizes of 11 and 278 nm, respectively. We observed an increase in the crystallite size for NiO and decrease of crystallite size for Ni, a decrease in the microstrain for both and an increase in the NiO phase content with thermal annealing in air, while high-energy ball milling leads to a decrease of the crystallite size, an increase in the size of the agglomerates, and microstrain as well as reduction, NiO - GT Ni. The lattice parameters of the nanosized NiO and Ni show a deviation from the value for the bulk counterparts as a consequence of crystallite size reduction and the grain-surface relaxation effect. The exchange bias found in a milled sample with particles of 10 nm (NiO) and 11 nm (Ni) disappears for larger particles as a consequence of a coupling-area decrease between the antiferromagnetic and ferromagnetic particles. Due to reduction/oxidation (NiO LT - GT Ni) and size as well as surface-relaxation effects the saturation magnetization value increases/decreases with milling/annealing, respectively. Having in mind the effect of size on the exchange bias, coercivity, and magnetization values, it is possible, by annealing/milling, to tailor the composition and particle size and then control the exchange bias and improve the other magnetic properties of the Ni/NiO.
T2  - Journal of Physical Chemistry. C
T1  - Exchange-Bias and Grain-Surface Relaxations in Nanostructured NiO/Ni Induced by a Particle Size Reduction
VL  - 116
IS  - 7
SP  - 4356
EP  - 4364
DO  - 10.1021/jp206658v
ER  - 
@article{
author = "Kremenović, Aleksandar S. and Jančar, Boštjan and Ristić, Mira and Vučinić-Vasić, Milica and Rogan, Jelena R. and Pacevski, Aleksandar and Antić, Bratislav",
year = "2012",
abstract = "Transition-metal-oxide/transition-metal nanocomposites, such as NiO/Ni, FeO/Fe, and CoO/Co, have been the subject of much recent investigation (i) because of their potential applications and (ii) because they are good model systems for studies of some effects on the nanoscale. They are used, for example, as catalysts, fuel-cell electrodes, magnetic memories, etc. When a nanocomposite is composed of both ferromagnetic (FM) and antiferromagnetic (AFM) nanoparticles, interesting physical properties can occur, such as the phenomenon of exchange bias (EB). A Ni/NiO nanocomposite obtained by the thermal decomposition of nickel(II) acetate tetrahydrate, Ni(CH3COO)(2)center dot 4H(2)O, at 300 degrees C, is composed of NiO (62%) and Ni (38%) with crystallite sizes of 11 and 278 nm, respectively. We observed an increase in the crystallite size for NiO and decrease of crystallite size for Ni, a decrease in the microstrain for both and an increase in the NiO phase content with thermal annealing in air, while high-energy ball milling leads to a decrease of the crystallite size, an increase in the size of the agglomerates, and microstrain as well as reduction, NiO - GT Ni. The lattice parameters of the nanosized NiO and Ni show a deviation from the value for the bulk counterparts as a consequence of crystallite size reduction and the grain-surface relaxation effect. The exchange bias found in a milled sample with particles of 10 nm (NiO) and 11 nm (Ni) disappears for larger particles as a consequence of a coupling-area decrease between the antiferromagnetic and ferromagnetic particles. Due to reduction/oxidation (NiO LT - GT Ni) and size as well as surface-relaxation effects the saturation magnetization value increases/decreases with milling/annealing, respectively. Having in mind the effect of size on the exchange bias, coercivity, and magnetization values, it is possible, by annealing/milling, to tailor the composition and particle size and then control the exchange bias and improve the other magnetic properties of the Ni/NiO.",
journal = "Journal of Physical Chemistry. C",
title = "Exchange-Bias and Grain-Surface Relaxations in Nanostructured NiO/Ni Induced by a Particle Size Reduction",
volume = "116",
number = "7",
pages = "4356-4364",
doi = "10.1021/jp206658v"
}
Kremenović, A. S., Jančar, B., Ristić, M., Vučinić-Vasić, M., Rogan, J. R., Pacevski, A.,& Antić, B.. (2012). Exchange-Bias and Grain-Surface Relaxations in Nanostructured NiO/Ni Induced by a Particle Size Reduction. in Journal of Physical Chemistry. C, 116(7), 4356-4364.
https://doi.org/10.1021/jp206658v
Kremenović AS, Jančar B, Ristić M, Vučinić-Vasić M, Rogan JR, Pacevski A, Antić B. Exchange-Bias and Grain-Surface Relaxations in Nanostructured NiO/Ni Induced by a Particle Size Reduction. in Journal of Physical Chemistry. C. 2012;116(7):4356-4364.
doi:10.1021/jp206658v .
Kremenović, Aleksandar S., Jančar, Boštjan, Ristić, Mira, Vučinić-Vasić, Milica, Rogan, Jelena R., Pacevski, Aleksandar, Antić, Bratislav, "Exchange-Bias and Grain-Surface Relaxations in Nanostructured NiO/Ni Induced by a Particle Size Reduction" in Journal of Physical Chemistry. C, 116, no. 7 (2012):4356-4364,
https://doi.org/10.1021/jp206658v . .
54
45
50

Metal contamination of short-term snow cover near urban crossroads: Correlation analysis of metal content and fine particles distribution

Vučinić-Vasić, Milica; Mihailovic, Aleksandra; Kozmidis-Luburic, Uranija; Nemes, Tomas; Ninkov, Jordana; Zeremski-Škorić, Tijana; Antić, Bratislav

(2012)

TY  - JOUR
AU  - Vučinić-Vasić, Milica
AU  - Mihailovic, Aleksandra
AU  - Kozmidis-Luburic, Uranija
AU  - Nemes, Tomas
AU  - Ninkov, Jordana
AU  - Zeremski-Škorić, Tijana
AU  - Antić, Bratislav
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4725
AB  - Snow samples were collected near crossroads in Novi Sad, Serbia, during December 2009 to assess metal concentrations (Ca, K, Zn, Fe, Cu, Mn, Al, Pb and Na), fine particle distribution and pH value. The filtered samples of melted snow were analysed, with a focus on particles smaller than a few mu m. The most common values of the frequency number distribution curve were either in the range of 0.05-0.07 mu m or one order of magnitude higher (mu m). At examined locations metal concentrations varied from 0.0004 mg L-1 for Pb to 18.9 mg L-1 for Na. Besides Na, which mostly originated from de-icing salt, Ca is found to be the most abundant element in snow indicating the dominant influence of natural factors on snow chemistry. No significant difference was found in concentration of the elements at locations near crossroads with either low or high traffic volume, except for Na and Zn. To investigate how metals were related a correlation analysis was done for the concentrations of metals and with respect to the particle size distribution parameters and pH values. The major influence on the fine particle volume (mass) was concluded to be due to the elements from anthropogenic sources. This conclusion was based on the significant positive correlation between Fe, Zn and Al and the fine particle volume based distribution parameters. (C) 2011 Elsevier Ltd. All rights reserved.
T2  - Chemosphere
T1  - Metal contamination of short-term snow cover near urban crossroads: Correlation analysis of metal content and fine particles distribution
VL  - 86
IS  - 6
SP  - 585
EP  - 592
DO  - 10.1016/j.chemosphere.2011.10.023
ER  - 
@article{
author = "Vučinić-Vasić, Milica and Mihailovic, Aleksandra and Kozmidis-Luburic, Uranija and Nemes, Tomas and Ninkov, Jordana and Zeremski-Škorić, Tijana and Antić, Bratislav",
year = "2012",
abstract = "Snow samples were collected near crossroads in Novi Sad, Serbia, during December 2009 to assess metal concentrations (Ca, K, Zn, Fe, Cu, Mn, Al, Pb and Na), fine particle distribution and pH value. The filtered samples of melted snow were analysed, with a focus on particles smaller than a few mu m. The most common values of the frequency number distribution curve were either in the range of 0.05-0.07 mu m or one order of magnitude higher (mu m). At examined locations metal concentrations varied from 0.0004 mg L-1 for Pb to 18.9 mg L-1 for Na. Besides Na, which mostly originated from de-icing salt, Ca is found to be the most abundant element in snow indicating the dominant influence of natural factors on snow chemistry. No significant difference was found in concentration of the elements at locations near crossroads with either low or high traffic volume, except for Na and Zn. To investigate how metals were related a correlation analysis was done for the concentrations of metals and with respect to the particle size distribution parameters and pH values. The major influence on the fine particle volume (mass) was concluded to be due to the elements from anthropogenic sources. This conclusion was based on the significant positive correlation between Fe, Zn and Al and the fine particle volume based distribution parameters. (C) 2011 Elsevier Ltd. All rights reserved.",
journal = "Chemosphere",
title = "Metal contamination of short-term snow cover near urban crossroads: Correlation analysis of metal content and fine particles distribution",
volume = "86",
number = "6",
pages = "585-592",
doi = "10.1016/j.chemosphere.2011.10.023"
}
Vučinić-Vasić, M., Mihailovic, A., Kozmidis-Luburic, U., Nemes, T., Ninkov, J., Zeremski-Škorić, T.,& Antić, B.. (2012). Metal contamination of short-term snow cover near urban crossroads: Correlation analysis of metal content and fine particles distribution. in Chemosphere, 86(6), 585-592.
https://doi.org/10.1016/j.chemosphere.2011.10.023
Vučinić-Vasić M, Mihailovic A, Kozmidis-Luburic U, Nemes T, Ninkov J, Zeremski-Škorić T, Antić B. Metal contamination of short-term snow cover near urban crossroads: Correlation analysis of metal content and fine particles distribution. in Chemosphere. 2012;86(6):585-592.
doi:10.1016/j.chemosphere.2011.10.023 .
Vučinić-Vasić, Milica, Mihailovic, Aleksandra, Kozmidis-Luburic, Uranija, Nemes, Tomas, Ninkov, Jordana, Zeremski-Škorić, Tijana, Antić, Bratislav, "Metal contamination of short-term snow cover near urban crossroads: Correlation analysis of metal content and fine particles distribution" in Chemosphere, 86, no. 6 (2012):585-592,
https://doi.org/10.1016/j.chemosphere.2011.10.023 . .
32
27
36

Optimization of photoluminescence of Y2O3:Eu and Gd2O3:Eu phosphors synthesized by thermolysis of 2,4-pentanedione complexes

Antić, Bratislav; Rogan, Jelena R.; Kremenović, Aleksandar S.; Nikolić, Aleksandar S.; Vučinić-Vasić, Milica; Božanić, Dušan K.; Goya, Gerardo F.; Colomban, Ph

(2010)

TY  - JOUR
AU  - Antić, Bratislav
AU  - Rogan, Jelena R.
AU  - Kremenović, Aleksandar S.
AU  - Nikolić, Aleksandar S.
AU  - Vučinić-Vasić, Milica
AU  - Božanić, Dušan K.
AU  - Goya, Gerardo F.
AU  - Colomban, Ph
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4008
AB  - Spherical shaped nanoparticles of series Y2-xEuxO3 (x = 0.06, 0.10, 0.20, and 2) and Gd2-xEuxO3 (x = 0.06, 0.10) were prepared by thermolysis of 2,4-pentanedione complexes of Y, Gd, and Eu. The bixbyite phase of Gd2-xEuxO3 samples was formed at 500 degrees C, whereas the thermal decomposition of Y and Eu complexes mixtures occurred at higher temperatures. Linearity in the concentration dependence on lattice parameter confirmed the formation of solid solutions. The distribution of Eu3+ in Gd2-xEuxO3 was changed with thermal annealing: in the as-prepared sample (x = 0.10) the distribution was preferential at C-3i sites while in the annealed samples, Eu3+ were distributed at both C-2 and C-3i sites. Rietveld refinement of site occupancies as well as emission spectra showed a random distribution of cations in Y2-xEuxO3. The photoluminescence (PL) measurements of the sample showed red emission with the main peak at 614 nm (D-5(0)-F-7(2)). The PL intensity increased with increasing concentration of Eu3+ in both series. Infrared excitation was required to obtain good Raman spectra. The linear dependence of the main Raman peak wavenumber offers a non-destructive method for monitoring the substitution level and its homogeneity at the micron scale.
T2  - Nanotechnology
T1  - Optimization of photoluminescence of Y2O3:Eu and Gd2O3:Eu phosphors synthesized by thermolysis of 2,4-pentanedione complexes
VL  - 21
IS  - 24
DO  - 10.1088/0957-4484/21/24/245702
ER  - 
@article{
author = "Antić, Bratislav and Rogan, Jelena R. and Kremenović, Aleksandar S. and Nikolić, Aleksandar S. and Vučinić-Vasić, Milica and Božanić, Dušan K. and Goya, Gerardo F. and Colomban, Ph",
year = "2010",
abstract = "Spherical shaped nanoparticles of series Y2-xEuxO3 (x = 0.06, 0.10, 0.20, and 2) and Gd2-xEuxO3 (x = 0.06, 0.10) were prepared by thermolysis of 2,4-pentanedione complexes of Y, Gd, and Eu. The bixbyite phase of Gd2-xEuxO3 samples was formed at 500 degrees C, whereas the thermal decomposition of Y and Eu complexes mixtures occurred at higher temperatures. Linearity in the concentration dependence on lattice parameter confirmed the formation of solid solutions. The distribution of Eu3+ in Gd2-xEuxO3 was changed with thermal annealing: in the as-prepared sample (x = 0.10) the distribution was preferential at C-3i sites while in the annealed samples, Eu3+ were distributed at both C-2 and C-3i sites. Rietveld refinement of site occupancies as well as emission spectra showed a random distribution of cations in Y2-xEuxO3. The photoluminescence (PL) measurements of the sample showed red emission with the main peak at 614 nm (D-5(0)-F-7(2)). The PL intensity increased with increasing concentration of Eu3+ in both series. Infrared excitation was required to obtain good Raman spectra. The linear dependence of the main Raman peak wavenumber offers a non-destructive method for monitoring the substitution level and its homogeneity at the micron scale.",
journal = "Nanotechnology",
title = "Optimization of photoluminescence of Y2O3:Eu and Gd2O3:Eu phosphors synthesized by thermolysis of 2,4-pentanedione complexes",
volume = "21",
number = "24",
doi = "10.1088/0957-4484/21/24/245702"
}
Antić, B., Rogan, J. R., Kremenović, A. S., Nikolić, A. S., Vučinić-Vasić, M., Božanić, D. K., Goya, G. F.,& Colomban, P.. (2010). Optimization of photoluminescence of Y2O3:Eu and Gd2O3:Eu phosphors synthesized by thermolysis of 2,4-pentanedione complexes. in Nanotechnology, 21(24).
https://doi.org/10.1088/0957-4484/21/24/245702
Antić B, Rogan JR, Kremenović AS, Nikolić AS, Vučinić-Vasić M, Božanić DK, Goya GF, Colomban P. Optimization of photoluminescence of Y2O3:Eu and Gd2O3:Eu phosphors synthesized by thermolysis of 2,4-pentanedione complexes. in Nanotechnology. 2010;21(24).
doi:10.1088/0957-4484/21/24/245702 .
Antić, Bratislav, Rogan, Jelena R., Kremenović, Aleksandar S., Nikolić, Aleksandar S., Vučinić-Vasić, Milica, Božanić, Dušan K., Goya, Gerardo F., Colomban, Ph, "Optimization of photoluminescence of Y2O3:Eu and Gd2O3:Eu phosphors synthesized by thermolysis of 2,4-pentanedione complexes" in Nanotechnology, 21, no. 24 (2010),
https://doi.org/10.1088/0957-4484/21/24/245702 . .
51
49
48

Temperature-induced structure and microstructure evolution of nanostructured Ni0.9Zn0.1O

Kremenović, Aleksandar S.; Antić, Bratislav; Vučinić-Vasić, Milica; Colomban, Philippe; Jovalekić, Čedomir; Bibić, Nataša M.; Kahlenberg, Volker; Leoni, Matteo

(2010)

TY  - JOUR
AU  - Kremenović, Aleksandar S.
AU  - Antić, Bratislav
AU  - Vučinić-Vasić, Milica
AU  - Colomban, Philippe
AU  - Jovalekić, Čedomir
AU  - Bibić, Nataša M.
AU  - Kahlenberg, Volker
AU  - Leoni, Matteo
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4028
AB  - The crystal structure and microstructure of as-prepared and annealed Ni0.9Zn0.1O were refined at room temperature in both the Fm (3) over barm and R (3) over barm space groups. It is shown that below the Neel point (458 K), where magnetic ordering triggers the presence of a trigonal strain, the common usage of a higher-symmetry non-admissible space group for crystal structure and microstructure analysis via the Rietveld method may result in both an incorrect structure description and incorrect microstructure parameters (size and strain). More realistic microstructure data can be obtained by whole powder pattern modelling of the powder diffraction data. Increasing the annealing temperature causes a reduction of the trigonal distortion as well as an increase in domain size. Simultaneously, the Raman spectra become less resolved, a clear indication of domain growth and structural evolution of the structure towards cubic symmetry (R (3) over barm - GT Fm (3) over barm).
T2  - Journal of Applied Crystallography
T1  - Temperature-induced structure and microstructure evolution of nanostructured Ni0.9Zn0.1O
VL  - 43
SP  - 699
EP  - 709
DO  - 10.1107/S0021889810019163
ER  - 
@article{
author = "Kremenović, Aleksandar S. and Antić, Bratislav and Vučinić-Vasić, Milica and Colomban, Philippe and Jovalekić, Čedomir and Bibić, Nataša M. and Kahlenberg, Volker and Leoni, Matteo",
year = "2010",
abstract = "The crystal structure and microstructure of as-prepared and annealed Ni0.9Zn0.1O were refined at room temperature in both the Fm (3) over barm and R (3) over barm space groups. It is shown that below the Neel point (458 K), where magnetic ordering triggers the presence of a trigonal strain, the common usage of a higher-symmetry non-admissible space group for crystal structure and microstructure analysis via the Rietveld method may result in both an incorrect structure description and incorrect microstructure parameters (size and strain). More realistic microstructure data can be obtained by whole powder pattern modelling of the powder diffraction data. Increasing the annealing temperature causes a reduction of the trigonal distortion as well as an increase in domain size. Simultaneously, the Raman spectra become less resolved, a clear indication of domain growth and structural evolution of the structure towards cubic symmetry (R (3) over barm - GT Fm (3) over barm).",
journal = "Journal of Applied Crystallography",
title = "Temperature-induced structure and microstructure evolution of nanostructured Ni0.9Zn0.1O",
volume = "43",
pages = "699-709",
doi = "10.1107/S0021889810019163"
}
Kremenović, A. S., Antić, B., Vučinić-Vasić, M., Colomban, P., Jovalekić, Č., Bibić, N. M., Kahlenberg, V.,& Leoni, M.. (2010). Temperature-induced structure and microstructure evolution of nanostructured Ni0.9Zn0.1O. in Journal of Applied Crystallography, 43, 699-709.
https://doi.org/10.1107/S0021889810019163
Kremenović AS, Antić B, Vučinić-Vasić M, Colomban P, Jovalekić Č, Bibić NM, Kahlenberg V, Leoni M. Temperature-induced structure and microstructure evolution of nanostructured Ni0.9Zn0.1O. in Journal of Applied Crystallography. 2010;43:699-709.
doi:10.1107/S0021889810019163 .
Kremenović, Aleksandar S., Antić, Bratislav, Vučinić-Vasić, Milica, Colomban, Philippe, Jovalekić, Čedomir, Bibić, Nataša M., Kahlenberg, Volker, Leoni, Matteo, "Temperature-induced structure and microstructure evolution of nanostructured Ni0.9Zn0.1O" in Journal of Applied Crystallography, 43 (2010):699-709,
https://doi.org/10.1107/S0021889810019163 . .
27
21
26

Magnetization enhancement in nanostructured random type MgFe2O4 spinel prepared by soft mechanochemical route

Antić, Bratislav; Jović, Nataša G.; Pavlović, Miodrag B.; Kremenović, Aleksandar S.; Manojlović, Dragan D.; Vučinić-Vasić, Milica; Nikolić, Aleksandar S.

(2010)

TY  - JOUR
AU  - Antić, Bratislav
AU  - Jović, Nataša G.
AU  - Pavlović, Miodrag B.
AU  - Kremenović, Aleksandar S.
AU  - Manojlović, Dragan D.
AU  - Vučinić-Vasić, Milica
AU  - Nikolić, Aleksandar S.
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3921
AB  - In this paper we report results of structural, spectroscopic, and magnetic investigations of MgFe2O4 nanoparticles prepared by soft mechanochemical synthesis. MgFe2O4 nanoparticles crystallize in Fd3m space group with mixed cation distribution and reduced percentage of Fe3+ at tetrahedral (8a) sites. Discrepancy in the cation distribution compared to that in the bulk Mg-ferrite is one of the highest known. X-ray line broadening analysis reveals crystallite size and strain anisotropy. The saturation magnetization, M-sat=62 emu/g measured at 5 K is twice higher than that found in the bulk counterparts. Such high value of M-sat is attributed to the low value of cation inversion parameter (delta=0.69), to the core/shell structure of the nanoparticles and to the surface/volume ratio. Moumlssbauer spectrum collected at room temperature reveals ferrimagnetic ordering between Fe3+ ions in 8a and 16d sites, while zero-field-cooled (ZFC) and field-cooled (FC) M(T) measurements were shown superparamagnetic state above 350 K.
T2  - Journal of Applied Physics
T1  - Magnetization enhancement in nanostructured random type MgFe2O4 spinel prepared by soft mechanochemical route
VL  - 107
IS  - 4
DO  - 10.1063/1.3319563
ER  - 
@article{
author = "Antić, Bratislav and Jović, Nataša G. and Pavlović, Miodrag B. and Kremenović, Aleksandar S. and Manojlović, Dragan D. and Vučinić-Vasić, Milica and Nikolić, Aleksandar S.",
year = "2010",
abstract = "In this paper we report results of structural, spectroscopic, and magnetic investigations of MgFe2O4 nanoparticles prepared by soft mechanochemical synthesis. MgFe2O4 nanoparticles crystallize in Fd3m space group with mixed cation distribution and reduced percentage of Fe3+ at tetrahedral (8a) sites. Discrepancy in the cation distribution compared to that in the bulk Mg-ferrite is one of the highest known. X-ray line broadening analysis reveals crystallite size and strain anisotropy. The saturation magnetization, M-sat=62 emu/g measured at 5 K is twice higher than that found in the bulk counterparts. Such high value of M-sat is attributed to the low value of cation inversion parameter (delta=0.69), to the core/shell structure of the nanoparticles and to the surface/volume ratio. Moumlssbauer spectrum collected at room temperature reveals ferrimagnetic ordering between Fe3+ ions in 8a and 16d sites, while zero-field-cooled (ZFC) and field-cooled (FC) M(T) measurements were shown superparamagnetic state above 350 K.",
journal = "Journal of Applied Physics",
title = "Magnetization enhancement in nanostructured random type MgFe2O4 spinel prepared by soft mechanochemical route",
volume = "107",
number = "4",
doi = "10.1063/1.3319563"
}
Antić, B., Jović, N. G., Pavlović, M. B., Kremenović, A. S., Manojlović, D. D., Vučinić-Vasić, M.,& Nikolić, A. S.. (2010). Magnetization enhancement in nanostructured random type MgFe2O4 spinel prepared by soft mechanochemical route. in Journal of Applied Physics, 107(4).
https://doi.org/10.1063/1.3319563
Antić B, Jović NG, Pavlović MB, Kremenović AS, Manojlović DD, Vučinić-Vasić M, Nikolić AS. Magnetization enhancement in nanostructured random type MgFe2O4 spinel prepared by soft mechanochemical route. in Journal of Applied Physics. 2010;107(4).
doi:10.1063/1.3319563 .
Antić, Bratislav, Jović, Nataša G., Pavlović, Miodrag B., Kremenović, Aleksandar S., Manojlović, Dragan D., Vučinić-Vasić, Milica, Nikolić, Aleksandar S., "Magnetization enhancement in nanostructured random type MgFe2O4 spinel prepared by soft mechanochemical route" in Journal of Applied Physics, 107, no. 4 (2010),
https://doi.org/10.1063/1.3319563 . .
41
33
43

Composition related properties of (Yb,Y)(2)O-3 nanoparticles synthesized by controlled thermal degradation of AA complexes

Antić, Bratislav; Kremenović, Aleksandar S.; Vučinić-Vasić, Milica; Dohcevic-Mitrovic, Z.; Nikolić, Aleksandar S.; Gruden-Pavlović, Maja; Jančar, Boštjan; Meden, A.

(2010)

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 . .
6
6
6

Core and shell structure of ytterbium sesquioxide nanoparticles

Vučinić-Vasić, Milica; Kremenović, Aleksandar S.; Nikolić, Aleksandar S.; Colomban, Philippe; Mazzerolles, Leo; Kahlenberg, Volker; Antić, Bratislav

(2010)

TY  - JOUR
AU  - Vučinić-Vasić, Milica
AU  - Kremenović, Aleksandar S.
AU  - Nikolić, Aleksandar S.
AU  - Colomban, Philippe
AU  - Mazzerolles, Leo
AU  - Kahlenberg, Volker
AU  - Antić, Bratislav
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4055
AB  - This paper reports results concerning the crystal structure of core and shell as well as microstructure of 25 nm-ytterbium sesquioxide (Yb(2)O(3)) nanoparticles synthesized using a unique method based on thermal decomposition of a 2,4 pentadione complex. Used Raman spectroscopy measurements indicate core/shell structure, with monoclinic or a mixture of monoclinic and cubic symmetry of the particle shell. In addition, XRPD and SAED confirmed bixbyite structure type for the core (space group Ia (3) over bar). Broadening of the observed Raman bands indicates structural distortions in the nanocrystalline sample. The size/strain analysis was done on XRPD data using Fullprof/MarqX approach. Anisotropy of X-ray line broadening is caused by size effects only. The resulting mean microstrain (6 x 10(-4)) points to a low concentration of defects within the crystallites. (C) 2010 Elsevier B.V. All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - Core and shell structure of ytterbium sesquioxide nanoparticles
VL  - 502
IS  - 1
SP  - 107
EP  - 111
DO  - 10.1016/j.jallcom.2010.03.158
ER  - 
@article{
author = "Vučinić-Vasić, Milica and Kremenović, Aleksandar S. and Nikolić, Aleksandar S. and Colomban, Philippe and Mazzerolles, Leo and Kahlenberg, Volker and Antić, Bratislav",
year = "2010",
abstract = "This paper reports results concerning the crystal structure of core and shell as well as microstructure of 25 nm-ytterbium sesquioxide (Yb(2)O(3)) nanoparticles synthesized using a unique method based on thermal decomposition of a 2,4 pentadione complex. Used Raman spectroscopy measurements indicate core/shell structure, with monoclinic or a mixture of monoclinic and cubic symmetry of the particle shell. In addition, XRPD and SAED confirmed bixbyite structure type for the core (space group Ia (3) over bar). Broadening of the observed Raman bands indicates structural distortions in the nanocrystalline sample. The size/strain analysis was done on XRPD data using Fullprof/MarqX approach. Anisotropy of X-ray line broadening is caused by size effects only. The resulting mean microstrain (6 x 10(-4)) points to a low concentration of defects within the crystallites. (C) 2010 Elsevier B.V. All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "Core and shell structure of ytterbium sesquioxide nanoparticles",
volume = "502",
number = "1",
pages = "107-111",
doi = "10.1016/j.jallcom.2010.03.158"
}
Vučinić-Vasić, M., Kremenović, A. S., Nikolić, A. S., Colomban, P., Mazzerolles, L., Kahlenberg, V.,& Antić, B.. (2010). Core and shell structure of ytterbium sesquioxide nanoparticles. in Journal of Alloys and Compounds, 502(1), 107-111.
https://doi.org/10.1016/j.jallcom.2010.03.158
Vučinić-Vasić M, Kremenović AS, Nikolić AS, Colomban P, Mazzerolles L, Kahlenberg V, Antić B. Core and shell structure of ytterbium sesquioxide nanoparticles. in Journal of Alloys and Compounds. 2010;502(1):107-111.
doi:10.1016/j.jallcom.2010.03.158 .
Vučinić-Vasić, Milica, Kremenović, Aleksandar S., Nikolić, Aleksandar S., Colomban, Philippe, Mazzerolles, Leo, Kahlenberg, Volker, Antić, Bratislav, "Core and shell structure of ytterbium sesquioxide nanoparticles" in Journal of Alloys and Compounds, 502, no. 1 (2010):107-111,
https://doi.org/10.1016/j.jallcom.2010.03.158 . .
8
7
8

HEBM synthesis of nanocrystalline LiZn0.5Ti1.5O4 spinel and thermally induced order-disorder phase transition(P4(3)32 - GT Fd(3)over-barm)

Jović, Nataša G.; Vučinić-Vasić, Milica; Kremenović, Aleksandar S.; Antić, Bratislav; Jovalekić, Čedomir; Vulic, P.; Kahlenberg, V.; Kaindl, R.

(2009)

TY  - JOUR
AU  - Jović, Nataša G.
AU  - Vučinić-Vasić, Milica
AU  - Kremenović, Aleksandar S.
AU  - Antić, Bratislav
AU  - Jovalekić, Čedomir
AU  - Vulic, P.
AU  - Kahlenberg, V.
AU  - Kaindl, R.
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3753
AB  - Nanocrystalline LiZn0.5Ti1.5O4 disordered spinel (S.G. Fd (3) over barm) was synthesized by high energy ball milling (HEBM). TEM analysis of the sample has shown that the particle size distribution is broad ranging from 10 to 60 nm. By X-ray line broadening analysis, the average apparent size of the crystallites is found to be 19(1) nm, while the average apparent strain is 26(4) x 10(-4). The cation distribution was found to be metastable, with Zn in octahedral 16d and Ti in tetrahedral 8a position, against their known site preference. After annealing the sample at 650 degrees C for 3 h and slow cooling down to room temperature, superstructure reflections (110), (210), (211) have been observed, indicating a cation ordering in the octahedral sublattice and a combined symmetry reduction (S.G. P4(3)32). The reverse symmetry change P4(3)32 - GT Fd (3) over barm caused by increasing the temperature was studied by in situ XRPD, DSC/DTA, Landaus theory of phase transitions and Raman spectroscopy. An analysis of the topology of the order parameter vector space indicates a biquadratic or linear-quadratic coupling between the order parameters Q(1) and Q(2). In LiZn0.5Ti1.5O4 dilatation expansion of crystal lattice as well as spontaneous strain values are rather small (order of 10(-4)), comparing to e.g. Li1.33xCo2-2xTi1+0.67xO4. (C) 2009 Elsevier B.V. All rights reserved.
T2  - Materials Chemistry and Physics
T1  - HEBM synthesis of nanocrystalline LiZn0.5Ti1.5O4 spinel and thermally induced order-disorder phase transition(P4(3)32 - GT Fd(3)over-barm)
VL  - 116
IS  - 2-3
SP  - 542
EP  - 549
DO  - 10.1016/j.matchemphys.2009.04.033
ER  - 
@article{
author = "Jović, Nataša G. and Vučinić-Vasić, Milica and Kremenović, Aleksandar S. and Antić, Bratislav and Jovalekić, Čedomir and Vulic, P. and Kahlenberg, V. and Kaindl, R.",
year = "2009",
abstract = "Nanocrystalline LiZn0.5Ti1.5O4 disordered spinel (S.G. Fd (3) over barm) was synthesized by high energy ball milling (HEBM). TEM analysis of the sample has shown that the particle size distribution is broad ranging from 10 to 60 nm. By X-ray line broadening analysis, the average apparent size of the crystallites is found to be 19(1) nm, while the average apparent strain is 26(4) x 10(-4). The cation distribution was found to be metastable, with Zn in octahedral 16d and Ti in tetrahedral 8a position, against their known site preference. After annealing the sample at 650 degrees C for 3 h and slow cooling down to room temperature, superstructure reflections (110), (210), (211) have been observed, indicating a cation ordering in the octahedral sublattice and a combined symmetry reduction (S.G. P4(3)32). The reverse symmetry change P4(3)32 - GT Fd (3) over barm caused by increasing the temperature was studied by in situ XRPD, DSC/DTA, Landaus theory of phase transitions and Raman spectroscopy. An analysis of the topology of the order parameter vector space indicates a biquadratic or linear-quadratic coupling between the order parameters Q(1) and Q(2). In LiZn0.5Ti1.5O4 dilatation expansion of crystal lattice as well as spontaneous strain values are rather small (order of 10(-4)), comparing to e.g. Li1.33xCo2-2xTi1+0.67xO4. (C) 2009 Elsevier B.V. All rights reserved.",
journal = "Materials Chemistry and Physics",
title = "HEBM synthesis of nanocrystalline LiZn0.5Ti1.5O4 spinel and thermally induced order-disorder phase transition(P4(3)32 - GT Fd(3)over-barm)",
volume = "116",
number = "2-3",
pages = "542-549",
doi = "10.1016/j.matchemphys.2009.04.033"
}
Jović, N. G., Vučinić-Vasić, M., Kremenović, A. S., Antić, B., Jovalekić, Č., Vulic, P., Kahlenberg, V.,& Kaindl, R.. (2009). HEBM synthesis of nanocrystalline LiZn0.5Ti1.5O4 spinel and thermally induced order-disorder phase transition(P4(3)32 - GT Fd(3)over-barm). in Materials Chemistry and Physics, 116(2-3), 542-549.
https://doi.org/10.1016/j.matchemphys.2009.04.033
Jović NG, Vučinić-Vasić M, Kremenović AS, Antić B, Jovalekić Č, Vulic P, Kahlenberg V, Kaindl R. HEBM synthesis of nanocrystalline LiZn0.5Ti1.5O4 spinel and thermally induced order-disorder phase transition(P4(3)32 - GT Fd(3)over-barm). in Materials Chemistry and Physics. 2009;116(2-3):542-549.
doi:10.1016/j.matchemphys.2009.04.033 .
Jović, Nataša G., Vučinić-Vasić, Milica, Kremenović, Aleksandar S., Antić, Bratislav, Jovalekić, Čedomir, Vulic, P., Kahlenberg, V., Kaindl, R., "HEBM synthesis of nanocrystalline LiZn0.5Ti1.5O4 spinel and thermally induced order-disorder phase transition(P4(3)32 - GT Fd(3)over-barm)" in Materials Chemistry and Physics, 116, no. 2-3 (2009):542-549,
https://doi.org/10.1016/j.matchemphys.2009.04.033 . .
16
15
17

Investigation of nanocrystalline phases in Li-La-Fe-O system formed by the decomposition of acetylacetonato complexes

Vučinić-Vasić, Milica; Antić, Bratislav; Kremenović, Aleksandar S.; Nikolić, Aleksandar S.; Blanuša, Jovan; Rakić, Srđan; Spasojević, Vojislav; Kapor, Agneš

(2007)

TY  - JOUR
AU  - Vučinić-Vasić, Milica
AU  - Antić, Bratislav
AU  - Kremenović, Aleksandar S.
AU  - Nikolić, Aleksandar S.
AU  - Blanuša, Jovan
AU  - Rakić, Srđan
AU  - Spasojević, Vojislav
AU  - Kapor, Agneš
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3146
AB  - Applying a new synthesis route based on the thermal decomposition of a mixture acetylacetonato complexes, Li(AA), La(AA)(3) and Fe(AA)(3), Li, La ferrite (Li0.5La0.08Fe2.42O4) was formed. The element analysis performed by ICP technique and the Rietveld refinement data indicate that the sample is composed of three phases: Li0.5La0.008Fe2.42O4 (69%, SG P4(3)32, a = 8.3445(3) angstrom), La0.14Fe3O4 (16%, SG Fd (3) over barm, a = 8.403(1) angstrom) and LiFeO2 (15%, SG Fm (3) over barm, a = 4.2291(8) angstrom). A partial substitution Fe3+ - GT La3+ in Li ferrite and La insertion at 16c site in Fe3O4 occur at low concentrations. A partial cation ordering at 4b and 12d octahedral sites in Li0.5La0.08Fe2.42O4 was noticed. TEM micrograph shows that the nanoparticles are spherically shaped and that the particle distribution is in the range between 7 and 33 nm. The sample exhibits superparamagnetic behavior, thus the composite has potential industrial applications. (c) 2006 Elsevier B.V. All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - Investigation of nanocrystalline phases in Li-La-Fe-O system formed by the decomposition of acetylacetonato complexes
VL  - 428
IS  - 1-2
SP  - 322
EP  - 326
DO  - 10.1016/j.jallcom.2006.03.042
ER  - 
@article{
author = "Vučinić-Vasić, Milica and Antić, Bratislav and Kremenović, Aleksandar S. and Nikolić, Aleksandar S. and Blanuša, Jovan and Rakić, Srđan and Spasojević, Vojislav and Kapor, Agneš",
year = "2007",
abstract = "Applying a new synthesis route based on the thermal decomposition of a mixture acetylacetonato complexes, Li(AA), La(AA)(3) and Fe(AA)(3), Li, La ferrite (Li0.5La0.08Fe2.42O4) was formed. The element analysis performed by ICP technique and the Rietveld refinement data indicate that the sample is composed of three phases: Li0.5La0.008Fe2.42O4 (69%, SG P4(3)32, a = 8.3445(3) angstrom), La0.14Fe3O4 (16%, SG Fd (3) over barm, a = 8.403(1) angstrom) and LiFeO2 (15%, SG Fm (3) over barm, a = 4.2291(8) angstrom). A partial substitution Fe3+ - GT La3+ in Li ferrite and La insertion at 16c site in Fe3O4 occur at low concentrations. A partial cation ordering at 4b and 12d octahedral sites in Li0.5La0.08Fe2.42O4 was noticed. TEM micrograph shows that the nanoparticles are spherically shaped and that the particle distribution is in the range between 7 and 33 nm. The sample exhibits superparamagnetic behavior, thus the composite has potential industrial applications. (c) 2006 Elsevier B.V. All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "Investigation of nanocrystalline phases in Li-La-Fe-O system formed by the decomposition of acetylacetonato complexes",
volume = "428",
number = "1-2",
pages = "322-326",
doi = "10.1016/j.jallcom.2006.03.042"
}
Vučinić-Vasić, M., Antić, B., Kremenović, A. S., Nikolić, A. S., Blanuša, J., Rakić, S., Spasojević, V.,& Kapor, A.. (2007). Investigation of nanocrystalline phases in Li-La-Fe-O system formed by the decomposition of acetylacetonato complexes. in Journal of Alloys and Compounds, 428(1-2), 322-326.
https://doi.org/10.1016/j.jallcom.2006.03.042
Vučinić-Vasić M, Antić B, Kremenović AS, Nikolić AS, Blanuša J, Rakić S, Spasojević V, Kapor A. Investigation of nanocrystalline phases in Li-La-Fe-O system formed by the decomposition of acetylacetonato complexes. in Journal of Alloys and Compounds. 2007;428(1-2):322-326.
doi:10.1016/j.jallcom.2006.03.042 .
Vučinić-Vasić, Milica, Antić, Bratislav, Kremenović, Aleksandar S., Nikolić, Aleksandar S., Blanuša, Jovan, Rakić, Srđan, Spasojević, Vojislav, Kapor, Agneš, "Investigation of nanocrystalline phases in Li-La-Fe-O system formed by the decomposition of acetylacetonato complexes" in Journal of Alloys and Compounds, 428, no. 1-2 (2007):322-326,
https://doi.org/10.1016/j.jallcom.2006.03.042 . .
7
3
5

Formation of nanosize Li-ferrites from acetylacetonato complexes and their crystal structure, microstructure and order-disorder phase transition

Vučinić-Vasić, Milica; Antić, Bratislav; Blanuša, Jovan; Rakić, Srđan; Kremenović, Aleksandar S.; Nikolić, Aleksandar S.; Kapor, Agneš

(2006)

TY  - JOUR
AU  - Vučinić-Vasić, Milica
AU  - Antić, Bratislav
AU  - Blanuša, Jovan
AU  - Rakić, Srđan
AU  - Kremenović, Aleksandar S.
AU  - Nikolić, Aleksandar S.
AU  - Kapor, Agneš
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2955
AB  - Nanosize Li-ferrites were synthesised by the thermal decomposition of an appropriate mixture of complex compounds with acetylacetone - (2,4 pentadione) ligands ([M(AA)(x)]; M = Li and Fe) at 500 degrees C. The obtained sample is composed of three phases determined by the standard Rietveld procedure: Li0.5Fe2.5O4 (S. G. P4(3)32), Li1.16Fe3O4 (S.G. Fd (3) over barm) and LiFeO2 (S.G. Fm (3) over barm). Cation distribution in nanosize ordered spinel Li0.5Fe2.5O4 deviates from that of the bulk counterpart. Microstructure parameters (crystallite size of similar to 23 nm and strain of 3.2526(9) x 10(3)) were determined by the Rietveld refinement of the TCH-pV parameters. SEM microphotographs show a particle size of similar to 50-60 nm. An order disorder phase transition in ordered spinel Li0.5Fe2.5O4 was studied by DSC measurements and in situ XRPD technique. The temperature of phase transition was found to be 762 degrees C ( DSC) and (745 +/- 5) degrees C ( XRPD).
T2  - Applied Physics. A: Materials Science and Processing
T1  - Formation of nanosize Li-ferrites from acetylacetonato complexes and their crystal structure, microstructure and order-disorder phase transition
VL  - 82
IS  - 1
SP  - 49
EP  - 54
DO  - 10.1007/s00339-005-3378-y
ER  - 
@article{
author = "Vučinić-Vasić, Milica and Antić, Bratislav and Blanuša, Jovan and Rakić, Srđan and Kremenović, Aleksandar S. and Nikolić, Aleksandar S. and Kapor, Agneš",
year = "2006",
abstract = "Nanosize Li-ferrites were synthesised by the thermal decomposition of an appropriate mixture of complex compounds with acetylacetone - (2,4 pentadione) ligands ([M(AA)(x)]; M = Li and Fe) at 500 degrees C. The obtained sample is composed of three phases determined by the standard Rietveld procedure: Li0.5Fe2.5O4 (S. G. P4(3)32), Li1.16Fe3O4 (S.G. Fd (3) over barm) and LiFeO2 (S.G. Fm (3) over barm). Cation distribution in nanosize ordered spinel Li0.5Fe2.5O4 deviates from that of the bulk counterpart. Microstructure parameters (crystallite size of similar to 23 nm and strain of 3.2526(9) x 10(3)) were determined by the Rietveld refinement of the TCH-pV parameters. SEM microphotographs show a particle size of similar to 50-60 nm. An order disorder phase transition in ordered spinel Li0.5Fe2.5O4 was studied by DSC measurements and in situ XRPD technique. The temperature of phase transition was found to be 762 degrees C ( DSC) and (745 +/- 5) degrees C ( XRPD).",
journal = "Applied Physics. A: Materials Science and Processing",
title = "Formation of nanosize Li-ferrites from acetylacetonato complexes and their crystal structure, microstructure and order-disorder phase transition",
volume = "82",
number = "1",
pages = "49-54",
doi = "10.1007/s00339-005-3378-y"
}
Vučinić-Vasić, M., Antić, B., Blanuša, J., Rakić, S., Kremenović, A. S., Nikolić, A. S.,& Kapor, A.. (2006). Formation of nanosize Li-ferrites from acetylacetonato complexes and their crystal structure, microstructure and order-disorder phase transition. in Applied Physics. A: Materials Science and Processing, 82(1), 49-54.
https://doi.org/10.1007/s00339-005-3378-y
Vučinić-Vasić M, Antić B, Blanuša J, Rakić S, Kremenović AS, Nikolić AS, Kapor A. Formation of nanosize Li-ferrites from acetylacetonato complexes and their crystal structure, microstructure and order-disorder phase transition. in Applied Physics. A: Materials Science and Processing. 2006;82(1):49-54.
doi:10.1007/s00339-005-3378-y .
Vučinić-Vasić, Milica, Antić, Bratislav, Blanuša, Jovan, Rakić, Srđan, Kremenović, Aleksandar S., Nikolić, Aleksandar S., Kapor, Agneš, "Formation of nanosize Li-ferrites from acetylacetonato complexes and their crystal structure, microstructure and order-disorder phase transition" in Applied Physics. A: Materials Science and Processing, 82, no. 1 (2006):49-54,
https://doi.org/10.1007/s00339-005-3378-y . .
20
19
21

Zn,Ni ferrite/NiO nanocomposite powder obtained from acetylacetonato complexes

Vučinić-Vasić, Milica; Antić, Bratislav; Kremenović, Aleksandar S.; Nikoliv, A. S.; Stoiljković, Milovan; Bibić, Nataša M.; Spasojević, Vojislav; Colomban, Ph

(2006)

TY  - JOUR
AU  - Vučinić-Vasić, Milica
AU  - Antić, Bratislav
AU  - Kremenović, Aleksandar S.
AU  - Nikoliv, A. S.
AU  - Stoiljković, Milovan
AU  - Bibić, Nataša M.
AU  - Spasojević, Vojislav
AU  - Colomban, Ph
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3112
AB  - The results on the synthesis, microstructure, structure and DC magnetization studies of nanocomposite Zn, Ni ferrite/NiO powder obtained by thermal decomposition of acetylacetonato complexes are reported in this paper. According to the results obtained by inductively coupled plasma optical emission spectroscopy (ICP-OES) element analysis and multiphase Rietveld refinement, the three samples made are composed of spinel-ferrite (86.7%-96.7%) and NiO (3.3%-13.3%) phases. The compositions of the spinel-ferrite (SP) phase in the investigated samples, S1-S3, are Zn0.72Ni0.24Fe1.98O4, Zn0.56Ni0.29Fe2.07O4 and Zn0.40Ni0.40Fe2.10O4, respectively. Due to the cation deficiency in spinels, created vacancies induce a partial change in the cation valence, Ni2+ - GT Ni3+. The vacancy distribution is found to be random at 8a and 16d cation sites, except in sample S3, where all vacancies are over octahedral sites. The x-ray line broadening due to crystallite size effect is found to be isotropic for all spinels, while the x-ray line broadening due to the strain effect is anisotropic. A correlation between the Zn2+ occupancy of the tetrahedral site and the 650 cm(-1) Raman peak intensities is shown. The observed coercivity decrease and shift in hysteresis loop in the samples are caused by the interaction between spinel and NiO phase. The results of M(H) measurements point to the properties of an ensemble of interacting nanoparticles. High saturation magnetization values and superparamagnetic behaviour at room temperature point to the technological significance of the title compounds.
T2  - Nanotechnology
T1  - Zn,Ni ferrite/NiO nanocomposite powder obtained from acetylacetonato complexes
VL  - 17
IS  - 19
SP  - 4877
EP  - 4884
DO  - 10.1088/0957-4484/17/19/017
ER  - 
@article{
author = "Vučinić-Vasić, Milica and Antić, Bratislav and Kremenović, Aleksandar S. and Nikoliv, A. S. and Stoiljković, Milovan and Bibić, Nataša M. and Spasojević, Vojislav and Colomban, Ph",
year = "2006",
abstract = "The results on the synthesis, microstructure, structure and DC magnetization studies of nanocomposite Zn, Ni ferrite/NiO powder obtained by thermal decomposition of acetylacetonato complexes are reported in this paper. According to the results obtained by inductively coupled plasma optical emission spectroscopy (ICP-OES) element analysis and multiphase Rietveld refinement, the three samples made are composed of spinel-ferrite (86.7%-96.7%) and NiO (3.3%-13.3%) phases. The compositions of the spinel-ferrite (SP) phase in the investigated samples, S1-S3, are Zn0.72Ni0.24Fe1.98O4, Zn0.56Ni0.29Fe2.07O4 and Zn0.40Ni0.40Fe2.10O4, respectively. Due to the cation deficiency in spinels, created vacancies induce a partial change in the cation valence, Ni2+ - GT Ni3+. The vacancy distribution is found to be random at 8a and 16d cation sites, except in sample S3, where all vacancies are over octahedral sites. The x-ray line broadening due to crystallite size effect is found to be isotropic for all spinels, while the x-ray line broadening due to the strain effect is anisotropic. A correlation between the Zn2+ occupancy of the tetrahedral site and the 650 cm(-1) Raman peak intensities is shown. The observed coercivity decrease and shift in hysteresis loop in the samples are caused by the interaction between spinel and NiO phase. The results of M(H) measurements point to the properties of an ensemble of interacting nanoparticles. High saturation magnetization values and superparamagnetic behaviour at room temperature point to the technological significance of the title compounds.",
journal = "Nanotechnology",
title = "Zn,Ni ferrite/NiO nanocomposite powder obtained from acetylacetonato complexes",
volume = "17",
number = "19",
pages = "4877-4884",
doi = "10.1088/0957-4484/17/19/017"
}
Vučinić-Vasić, M., Antić, B., Kremenović, A. S., Nikoliv, A. S., Stoiljković, M., Bibić, N. M., Spasojević, V.,& Colomban, P.. (2006). Zn,Ni ferrite/NiO nanocomposite powder obtained from acetylacetonato complexes. in Nanotechnology, 17(19), 4877-4884.
https://doi.org/10.1088/0957-4484/17/19/017
Vučinić-Vasić M, Antić B, Kremenović AS, Nikoliv AS, Stoiljković M, Bibić NM, Spasojević V, Colomban P. Zn,Ni ferrite/NiO nanocomposite powder obtained from acetylacetonato complexes. in Nanotechnology. 2006;17(19):4877-4884.
doi:10.1088/0957-4484/17/19/017 .
Vučinić-Vasić, Milica, Antić, Bratislav, Kremenović, Aleksandar S., Nikoliv, A. S., Stoiljković, Milovan, Bibić, Nataša M., Spasojević, Vojislav, Colomban, Ph, "Zn,Ni ferrite/NiO nanocomposite powder obtained from acetylacetonato complexes" in Nanotechnology, 17, no. 19 (2006):4877-4884,
https://doi.org/10.1088/0957-4484/17/19/017 . .
36
36
39

X-ray powder diffraction line broadening analysis and magnetism of interacting ferrite nanoparticles obtained from acetylacetonato complexes

Kremenović, Aleksandar S.; Antić, Bratislav; Spasojević, Vojislav; Vučinić-Vasić, Milica; Jagličić, Zvonko; Pirnat, J; Trontelj, Z

(2005)

TY  - JOUR
AU  - Kremenović, Aleksandar S.
AU  - Antić, Bratislav
AU  - Spasojević, Vojislav
AU  - Vučinić-Vasić, Milica
AU  - Jagličić, Zvonko
AU  - Pirnat, J
AU  - Trontelj, Z
PY  - 2005
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2914
AB  - A study of the microstructures and magnetic properties of nanosize Zn ferrite (ZnFe2O4), Mn ferrite (MnFe2O4), and the cation deficit Zn-Mn ferrites Zn0.70Mn0.23Fe1.89O4 (S1), Zn0.41Mn0.50Fe1.84O4 (S2) and Zn0.18Mn0.67Fe1.85O4 (S3) was performed. The crystallite size for all samples was determined by x-ray powder diffraction (XRPD) analysis using four different methods, and was close to the particle size found from transmission electron microphotography. Among different methods of XRPD line broadening analysis it seems that the cubic harmonic function method is more precise and reliable than the Warren-Averbach and simplified integral breadth methods. M(T) and M(H) magnetization curves at different fields/temperatures indicate superparamagnetic behaviour of the samples. Asymmetric hysteresis loops and differences in coercive fields, H-C-(FC)-H-C- (ZFC), are discussed by both the core/shell model of nanoparticles and spin canting. The magnetic measurements with a maximum in the FC magnetization branches, the difference in M/M-S versus H/T curves above T-max, (temperature of maximum in ZFC magnetization), the nonlinearity in H-C versus T-1/2, the remanence/saturation ratio value, M-R/M-S and observation of the Almeida/Thouless line for low-field magnetization data (T-max versus H-2/3) indicate that the samples consist of an interacting ferrite nanoparticle ensemble.
T2  - Journal of Physics: Condensed Matter
T1  - X-ray powder diffraction line broadening analysis and magnetism of interacting ferrite nanoparticles obtained from acetylacetonato complexes
VL  - 17
IS  - 27
SP  - 4285
EP  - 4299
DO  - 10.1088/0953-8984/17/27/005
ER  - 
@article{
author = "Kremenović, Aleksandar S. and Antić, Bratislav and Spasojević, Vojislav and Vučinić-Vasić, Milica and Jagličić, Zvonko and Pirnat, J and Trontelj, Z",
year = "2005",
abstract = "A study of the microstructures and magnetic properties of nanosize Zn ferrite (ZnFe2O4), Mn ferrite (MnFe2O4), and the cation deficit Zn-Mn ferrites Zn0.70Mn0.23Fe1.89O4 (S1), Zn0.41Mn0.50Fe1.84O4 (S2) and Zn0.18Mn0.67Fe1.85O4 (S3) was performed. The crystallite size for all samples was determined by x-ray powder diffraction (XRPD) analysis using four different methods, and was close to the particle size found from transmission electron microphotography. Among different methods of XRPD line broadening analysis it seems that the cubic harmonic function method is more precise and reliable than the Warren-Averbach and simplified integral breadth methods. M(T) and M(H) magnetization curves at different fields/temperatures indicate superparamagnetic behaviour of the samples. Asymmetric hysteresis loops and differences in coercive fields, H-C-(FC)-H-C- (ZFC), are discussed by both the core/shell model of nanoparticles and spin canting. The magnetic measurements with a maximum in the FC magnetization branches, the difference in M/M-S versus H/T curves above T-max, (temperature of maximum in ZFC magnetization), the nonlinearity in H-C versus T-1/2, the remanence/saturation ratio value, M-R/M-S and observation of the Almeida/Thouless line for low-field magnetization data (T-max versus H-2/3) indicate that the samples consist of an interacting ferrite nanoparticle ensemble.",
journal = "Journal of Physics: Condensed Matter",
title = "X-ray powder diffraction line broadening analysis and magnetism of interacting ferrite nanoparticles obtained from acetylacetonato complexes",
volume = "17",
number = "27",
pages = "4285-4299",
doi = "10.1088/0953-8984/17/27/005"
}
Kremenović, A. S., Antić, B., Spasojević, V., Vučinić-Vasić, M., Jagličić, Z., Pirnat, J.,& Trontelj, Z.. (2005). X-ray powder diffraction line broadening analysis and magnetism of interacting ferrite nanoparticles obtained from acetylacetonato complexes. in Journal of Physics: Condensed Matter, 17(27), 4285-4299.
https://doi.org/10.1088/0953-8984/17/27/005
Kremenović AS, Antić B, Spasojević V, Vučinić-Vasić M, Jagličić Z, Pirnat J, Trontelj Z. X-ray powder diffraction line broadening analysis and magnetism of interacting ferrite nanoparticles obtained from acetylacetonato complexes. in Journal of Physics: Condensed Matter. 2005;17(27):4285-4299.
doi:10.1088/0953-8984/17/27/005 .
Kremenović, Aleksandar S., Antić, Bratislav, Spasojević, Vojislav, Vučinić-Vasić, Milica, Jagličić, Zvonko, Pirnat, J, Trontelj, Z, "X-ray powder diffraction line broadening analysis and magnetism of interacting ferrite nanoparticles obtained from acetylacetonato complexes" in Journal of Physics: Condensed Matter, 17, no. 27 (2005):4285-4299,
https://doi.org/10.1088/0953-8984/17/27/005 . .
23
25
26

In situ XRPD and DSC study of order-disorder phase transition in nanosize Li-ferrite

Vučinić-Vasić, Milica; Antić, Bratislav; Nikolić, Aleksandar S.; Kremenović, Aleksandar S.; Rakić, Srđan; Blanuša, Jovan; Cvjetićanin, Nikola; Kapor, Agneš

(Society of Physical Chemists of Serbia, 2004)

TY  - CONF
AU  - Vučinić-Vasić, Milica
AU  - Antić, Bratislav
AU  - Nikolić, Aleksandar S.
AU  - Kremenović, Aleksandar S.
AU  - Rakić, Srđan
AU  - Blanuša, Jovan
AU  - Cvjetićanin, Nikola
AU  - Kapor, Agneš
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9536
AB  - An order-disorder phase transition of nanosize Li-ferrite (Li0.50Fe2.50O4) was studied by DSC measurements and in situ XRPD technique. The phase transition temperature is found to be 762 °C (DSC) and (745±5) °C (XRPD).
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2004: 7th international conference on fundemental and applied aspract of physical chemistry
T1  - In situ XRPD and DSC study of order-disorder phase transition in nanosize Li-ferrite
VL  - 2
SP  - 508
EP  - 510
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9536
ER  - 
@conference{
author = "Vučinić-Vasić, Milica and Antić, Bratislav and Nikolić, Aleksandar S. and Kremenović, Aleksandar S. and Rakić, Srđan and Blanuša, Jovan and Cvjetićanin, Nikola and Kapor, Agneš",
year = "2004",
abstract = "An order-disorder phase transition of nanosize Li-ferrite (Li0.50Fe2.50O4) was studied by DSC measurements and in situ XRPD technique. The phase transition temperature is found to be 762 °C (DSC) and (745±5) °C (XRPD).",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2004: 7th international conference on fundemental and applied aspract of physical chemistry",
title = "In situ XRPD and DSC study of order-disorder phase transition in nanosize Li-ferrite",
volume = "2",
pages = "508-510",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9536"
}
Vučinić-Vasić, M., Antić, B., Nikolić, A. S., Kremenović, A. S., Rakić, S., Blanuša, J., Cvjetićanin, N.,& Kapor, A.. (2004). In situ XRPD and DSC study of order-disorder phase transition in nanosize Li-ferrite. in Physical chemistry 2004: 7th international conference on fundemental and applied aspract of physical chemistry
Society of Physical Chemists of Serbia., 2, 508-510.
https://hdl.handle.net/21.15107/rcub_vinar_9536
Vučinić-Vasić M, Antić B, Nikolić AS, Kremenović AS, Rakić S, Blanuša J, Cvjetićanin N, Kapor A. In situ XRPD and DSC study of order-disorder phase transition in nanosize Li-ferrite. in Physical chemistry 2004: 7th international conference on fundemental and applied aspract of physical chemistry. 2004;2:508-510.
https://hdl.handle.net/21.15107/rcub_vinar_9536 .
Vučinić-Vasić, Milica, Antić, Bratislav, Nikolić, Aleksandar S., Kremenović, Aleksandar S., Rakić, Srđan, Blanuša, Jovan, Cvjetićanin, Nikola, Kapor, Agneš, "In situ XRPD and DSC study of order-disorder phase transition in nanosize Li-ferrite" in Physical chemistry 2004: 7th international conference on fundemental and applied aspract of physical chemistry, 2 (2004):508-510,
https://hdl.handle.net/21.15107/rcub_vinar_9536 .

X-ray diffraction study of Cu-25[AsSe1.4I0.2](75) amorphous semiconductor

Bordas, A; Vučinić-Vasić, Milica; Kapor, Agneš; Antić, Bratislav

(2001)

TY  - JOUR
AU  - Bordas, A
AU  - Vučinić-Vasić, Milica
AU  - Kapor, Agneš
AU  - Antić, Bratislav
PY  - 2001
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6324
AB  - Many properties of chalcogenide amorphous semiconductors, such as electric conductivity, optical constants etc. depend on the type of the structural unit in the amorphous structure i.e. distribution of the nearest neighbor atoms. Obviously the identification of the type of the structural units is of great importance. Cu-25 [AsSe1.4I0.2](75) amorphous system and its crystalline phase prepared by slow cooling of the melt were analyzed on automatic X-ray diffractometer equipment. Using X-ray diffraction data we obtained the structure factor (SF). The reduced radial distribution function (RDF) was obtained in two ways: using standard method, Fourier transformation of SF, and maximum-entropy method. RDF analysis results are in agreement with model calculation, which proves the domination of tetrahedral structural units.
T2  - Materials Science Forum
T1  - X-ray diffraction study of Cu-25[AsSe1.4I0.2](75) amorphous semiconductor
VL  - 378-3
SP  - 394
EP  - 399
DO  - 10.4028/www.scientific.net/MSF.378-381.394
ER  - 
@article{
author = "Bordas, A and Vučinić-Vasić, Milica and Kapor, Agneš and Antić, Bratislav",
year = "2001",
abstract = "Many properties of chalcogenide amorphous semiconductors, such as electric conductivity, optical constants etc. depend on the type of the structural unit in the amorphous structure i.e. distribution of the nearest neighbor atoms. Obviously the identification of the type of the structural units is of great importance. Cu-25 [AsSe1.4I0.2](75) amorphous system and its crystalline phase prepared by slow cooling of the melt were analyzed on automatic X-ray diffractometer equipment. Using X-ray diffraction data we obtained the structure factor (SF). The reduced radial distribution function (RDF) was obtained in two ways: using standard method, Fourier transformation of SF, and maximum-entropy method. RDF analysis results are in agreement with model calculation, which proves the domination of tetrahedral structural units.",
journal = "Materials Science Forum",
title = "X-ray diffraction study of Cu-25[AsSe1.4I0.2](75) amorphous semiconductor",
volume = "378-3",
pages = "394-399",
doi = "10.4028/www.scientific.net/MSF.378-381.394"
}
Bordas, A., Vučinić-Vasić, M., Kapor, A.,& Antić, B.. (2001). X-ray diffraction study of Cu-25[AsSe1.4I0.2](75) amorphous semiconductor. in Materials Science Forum, 378-3, 394-399.
https://doi.org/10.4028/www.scientific.net/MSF.378-381.394
Bordas A, Vučinić-Vasić M, Kapor A, Antić B. X-ray diffraction study of Cu-25[AsSe1.4I0.2](75) amorphous semiconductor. in Materials Science Forum. 2001;378-3:394-399.
doi:10.4028/www.scientific.net/MSF.378-381.394 .
Bordas, A, Vučinić-Vasić, Milica, Kapor, Agneš, Antić, Bratislav, "X-ray diffraction study of Cu-25[AsSe1.4I0.2](75) amorphous semiconductor" in Materials Science Forum, 378-3 (2001):394-399,
https://doi.org/10.4028/www.scientific.net/MSF.378-381.394 . .