TY  - JOUR
AU  - Nikolić, Aleksandar S.
AU  - Bošković, Marko
AU  - Fabian, M.
AU  - Bozanic, D. K.
AU  - Vučinić-Vasić, M.
AU  - Kremenović, Aleksandar
AU  - Antić, Bratislav
PY  - 2013
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1459
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).
PB  - Amer Scientific Publishers, Valencia
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, M. and Bozanic, D. K. and Vučinić-Vasić, M. and Kremenović, Aleksandar 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).",
publisher = "Amer Scientific Publishers, Valencia",
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., Bozanic, D. K., Vučinić-Vasić, M., Kremenović, A.,& Antić, B.. (2013). Comparative Structural and Optical Properties of Different Ceria Nanoparticles. in Journal of Nanoscience and Nanotechnology
Amer Scientific Publishers, Valencia., 13(10), 6787-6792.
https://doi.org/10.1166/jnn.2013.7774

Nikolić AS, Bošković M, Fabian M, Bozanic DK, Vučinić-Vasić M, Kremenović A, 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, M., Bozanic, D. K., Vučinić-Vasić, M., Kremenović, Aleksandar, 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 . .

TY  - JOUR
AU  - Nikolić, Aleksandar S.
AU  - Jovic, N.
AU  - Rogan, J.
AU  - Kremenović, Aleksandar
AU  - Ristic, M.
AU  - Meden, A.
AU  - Antić, Bratislav
PY  - 2013
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1363
AB  - Different synthesis methods for the preparation of nanocrystalline nickel ferrites are reported: the thermal decomposition of precursors, made of: (i) metal-nitrate salts with carboxylic acids (citric, malonic and tartaric), and (ii) metal-nitrate salts and polyethylene glycol (PEG), in the presence of potassium chloride as a capping agent. The as-prepared gel precursors were characterized by TGA/DTA, while the samples obtained after annealing at 450 degrees C were investigated by FTIR, FESEM, XRD and Mossbauer spectroscopy. Regardless of the type of carboxylic acid used, nanocrystallites prepared by (i) method are similar in size (11-16 nm), while the method (ii) gives crystallites similar to 33 nm in size with negligible microstrain. The differences in the lattice parameter, ranging from 8.3369(2) to 8.3574(2) angstrom, result from cation distribution, nonstoichiometry and structural imperfections in the nickel ferrite nanoparticles. The Mossbauer spectra analysis indicates existence of large distortions of tetrahedral and octahedral sites in these spinel compounds. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Carboxylic acids and polyethylene glycol assisted synthesis of nanocrystalline nickel ferrites
VL  - 39
IS  - 6
SP  - 6681
EP  - 6688
DO  - 10.1016/j.ceramint.2013.01.106
ER  - 

@article{
author = "Nikolić, Aleksandar S. and Jovic, N. and Rogan, J. and Kremenović, Aleksandar and Ristic, M. and Meden, A. and Antić, Bratislav",
year = "2013",
abstract = "Different synthesis methods for the preparation of nanocrystalline nickel ferrites are reported: the thermal decomposition of precursors, made of: (i) metal-nitrate salts with carboxylic acids (citric, malonic and tartaric), and (ii) metal-nitrate salts and polyethylene glycol (PEG), in the presence of potassium chloride as a capping agent. The as-prepared gel precursors were characterized by TGA/DTA, while the samples obtained after annealing at 450 degrees C were investigated by FTIR, FESEM, XRD and Mossbauer spectroscopy. Regardless of the type of carboxylic acid used, nanocrystallites prepared by (i) method are similar in size (11-16 nm), while the method (ii) gives crystallites similar to 33 nm in size with negligible microstrain. The differences in the lattice parameter, ranging from 8.3369(2) to 8.3574(2) angstrom, result from cation distribution, nonstoichiometry and structural imperfections in the nickel ferrite nanoparticles. The Mossbauer spectra analysis indicates existence of large distortions of tetrahedral and octahedral sites in these spinel compounds. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Carboxylic acids and polyethylene glycol assisted synthesis of nanocrystalline nickel ferrites",
volume = "39",
number = "6",
pages = "6681-6688",
doi = "10.1016/j.ceramint.2013.01.106"
}

Nikolić, A. S., Jovic, N., Rogan, J., Kremenović, A., Ristic, M., Meden, A.,& Antić, B.. (2013). Carboxylic acids and polyethylene glycol assisted synthesis of nanocrystalline nickel ferrites. in Ceramics International
Elsevier Sci Ltd, Oxford., 39(6), 6681-6688.
https://doi.org/10.1016/j.ceramint.2013.01.106

Nikolić AS, Jovic N, Rogan J, Kremenović A, Ristic M, Meden A, Antić B. Carboxylic acids and polyethylene glycol assisted synthesis of nanocrystalline nickel ferrites. in Ceramics International. 2013;39(6):6681-6688.
doi:10.1016/j.ceramint.2013.01.106 .

Nikolić, Aleksandar S., Jovic, N., Rogan, J., Kremenović, Aleksandar, Ristic, M., Meden, A., Antić, Bratislav, "Carboxylic acids and polyethylene glycol assisted synthesis of nanocrystalline nickel ferrites" in Ceramics International, 39, no. 6 (2013):6681-6688,
https://doi.org/10.1016/j.ceramint.2013.01.106 . .

TY  - JOUR
AU  - Antić, Bratislav
AU  - Kremenović, Aleksandar
AU  - Jovic, N.
AU  - Pavlović, Miodrag B.
AU  - Jovalekic, C.
AU  - Nikolić, Aleksandar S.
AU  - Goya, G. F.
AU  - Weidenthaler, C.
PY  - 2012
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1285
AB  - We present a study of the structural and magnetic properties of (Mn,Fe)(3-delta)O-4 nanoparticles synthesized by soft mechanochemistry using Mn(OH)(2) x 2 H2O and Fe(OH)(3) powders as starting compounds. The resulting nanoparticles with a composition of the (Mn,Fe)(3-delta)O-4 type are found to have a core/shell structure with different Mn/Fe ratios in the core and at the surface. XPS analysis points to valences of +2, +3, and +4 for Mn and +3 for Fe at the particle surface. Combined results of XRPD, Mossbauer spectroscopy, and EDX analysis suggest that there is a deviation from stoichiometry in the nanoparticle core compared to the shell, accompanied by creation of cation polyvalence and vacancies. The value of saturation magnetization, M-S, of 73.5 emu/g at room temperature, is among the highest reported so far among nanocrystalline ferrite systems of similar composition. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3700228]
PB  - Amer Inst Physics, Melville
T2  - Journal of Applied Physics
T1  - Magnetization enhancement and cation valences in nonstoichiometric (Mn,Fe)(3-delta)O-4 nanoparticles
VL  - 111
IS  - 7
DO  - 10.1063/1.3700228
ER  - 

@article{
author = "Antić, Bratislav and Kremenović, Aleksandar and Jovic, N. and Pavlović, Miodrag B. and Jovalekic, C. and Nikolić, Aleksandar S. and Goya, G. F. and Weidenthaler, C.",
year = "2012",
abstract = "We present a study of the structural and magnetic properties of (Mn,Fe)(3-delta)O-4 nanoparticles synthesized by soft mechanochemistry using Mn(OH)(2) x 2 H2O and Fe(OH)(3) powders as starting compounds. The resulting nanoparticles with a composition of the (Mn,Fe)(3-delta)O-4 type are found to have a core/shell structure with different Mn/Fe ratios in the core and at the surface. XPS analysis points to valences of +2, +3, and +4 for Mn and +3 for Fe at the particle surface. Combined results of XRPD, Mossbauer spectroscopy, and EDX analysis suggest that there is a deviation from stoichiometry in the nanoparticle core compared to the shell, accompanied by creation of cation polyvalence and vacancies. The value of saturation magnetization, M-S, of 73.5 emu/g at room temperature, is among the highest reported so far among nanocrystalline ferrite systems of similar composition. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3700228]",
publisher = "Amer Inst Physics, Melville",
journal = "Journal of Applied Physics",
title = "Magnetization enhancement and cation valences in nonstoichiometric (Mn,Fe)(3-delta)O-4 nanoparticles",
volume = "111",
number = "7",
doi = "10.1063/1.3700228"
}

Antić, B., Kremenović, A., Jovic, N., Pavlović, M. B., Jovalekic, C., Nikolić, A. S., Goya, G. F.,& Weidenthaler, C.. (2012). Magnetization enhancement and cation valences in nonstoichiometric (Mn,Fe)(3-delta)O-4 nanoparticles. in Journal of Applied Physics
Amer Inst Physics, Melville., 111(7).
https://doi.org/10.1063/1.3700228

Antić B, Kremenović A, Jovic N, Pavlović MB, Jovalekic C, Nikolić AS, Goya GF, Weidenthaler C. Magnetization enhancement and cation valences in nonstoichiometric (Mn,Fe)(3-delta)O-4 nanoparticles. in Journal of Applied Physics. 2012;111(7).
doi:10.1063/1.3700228 .

Antić, Bratislav, Kremenović, Aleksandar, Jovic, N., Pavlović, Miodrag B., Jovalekic, C., Nikolić, Aleksandar S., Goya, G. F., Weidenthaler, C., "Magnetization enhancement and cation valences in nonstoichiometric (Mn,Fe)(3-delta)O-4 nanoparticles" in Journal of Applied Physics, 111, no. 7 (2012),
https://doi.org/10.1063/1.3700228 . .

TY  - JOUR
AU  - Kremenović, Aleksandar
AU  - Bozanic, D. K.
AU  - Welsch, A. -M.
AU  - Jancar, B.
AU  - Nikolić, Aleksandar S.
AU  - Bošković, Marko
AU  - Colomban, Ph.
AU  - Fabian, Martin
AU  - Antić, Bratislav
PY  - 2012
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1603
AB  - The 5-10 nnn Ce1-XEuXO2-delta (0  lt = x  lt = 0.30) nanoparticles with fluorite structure were synthesized by thermal decomposition of Eu- and Ce-2,4-pentanedione complexes mixtures. X-ray line broadening analysis of mixed samples Ce1-XEuXO2-delta (0.05  lt = x  lt = 0.30) showed that the crystallite size was lower and root mean square strain higher than in pure ceria. However, within mixed samples Ce1-XEuXO2-delta (0.05  lt = x  lt = 0.30) crystallite size and root mean square strain were independent of Eu3+ concentration. Raman spectroscopy results indicated that europium ions yield disorder by breaking the phonon propagation and therefore making the non-centre Brillouin zone modes Raman active. The absorption bands in the spectra of mixed oxides were blue-shifted in comparison to pure CeO2-delta nanopowder. The samples show red emission typical for Eu ions. The biggest photoluminescent intensity was observed for the highest Eu3+ concentration (x = 0.30) and further enhanced with the increase in crystallinity.
PB  - Amer Scientific Publishers, Valencia
T2  - Journal of Nanoscience and Nanotechnology
T1  - Effects of Eu3+ Concentration on Structural, Optical and Vibrational Properties of Multifunctional Ce1-X,EuXO2-delta Nanoparticles Synthesized by Thermolysis of 2,4-Pentanedione Complexes
VL  - 12
IS  - 12
SP  - 8893
EP  - 8899
DO  - 10.1166/jnn.2012.6797
ER  - 

@article{
author = "Kremenović, Aleksandar and Bozanic, D. K. and Welsch, A. -M. and Jancar, B. and Nikolić, Aleksandar S. and Bošković, Marko and Colomban, Ph. and Fabian, Martin and Antić, Bratislav",
year = "2012",
abstract = "The 5-10 nnn Ce1-XEuXO2-delta (0  lt = x  lt = 0.30) nanoparticles with fluorite structure were synthesized by thermal decomposition of Eu- and Ce-2,4-pentanedione complexes mixtures. X-ray line broadening analysis of mixed samples Ce1-XEuXO2-delta (0.05  lt = x  lt = 0.30) showed that the crystallite size was lower and root mean square strain higher than in pure ceria. However, within mixed samples Ce1-XEuXO2-delta (0.05  lt = x  lt = 0.30) crystallite size and root mean square strain were independent of Eu3+ concentration. Raman spectroscopy results indicated that europium ions yield disorder by breaking the phonon propagation and therefore making the non-centre Brillouin zone modes Raman active. The absorption bands in the spectra of mixed oxides were blue-shifted in comparison to pure CeO2-delta nanopowder. The samples show red emission typical for Eu ions. The biggest photoluminescent intensity was observed for the highest Eu3+ concentration (x = 0.30) and further enhanced with the increase in crystallinity.",
publisher = "Amer Scientific Publishers, Valencia",
journal = "Journal of Nanoscience and Nanotechnology",
title = "Effects of Eu3+ Concentration on Structural, Optical and Vibrational Properties of Multifunctional Ce1-X,EuXO2-delta Nanoparticles Synthesized by Thermolysis of 2,4-Pentanedione Complexes",
volume = "12",
number = "12",
pages = "8893-8899",
doi = "10.1166/jnn.2012.6797"
}

Kremenović, A., Bozanic, D. K., Welsch, A. -M., Jancar, B., Nikolić, A. S., Bošković, M., Colomban, Ph., Fabian, M.,& Antić, B.. (2012). Effects of Eu3+ Concentration on Structural, Optical and Vibrational Properties of Multifunctional Ce1-X,EuXO2-delta Nanoparticles Synthesized by Thermolysis of 2,4-Pentanedione Complexes. in Journal of Nanoscience and Nanotechnology
Amer Scientific Publishers, Valencia., 12(12), 8893-8899.
https://doi.org/10.1166/jnn.2012.6797

Kremenović A, Bozanic DK, Welsch A-, Jancar B, Nikolić AS, Bošković M, Colomban P, Fabian M, Antić B. Effects of Eu3+ Concentration on Structural, Optical and Vibrational Properties of Multifunctional Ce1-X,EuXO2-delta Nanoparticles Synthesized by Thermolysis of 2,4-Pentanedione Complexes. in Journal of Nanoscience and Nanotechnology. 2012;12(12):8893-8899.
doi:10.1166/jnn.2012.6797 .

Kremenović, Aleksandar, Bozanic, D. K., Welsch, A. -M., Jancar, B., Nikolić, Aleksandar S., Bošković, Marko, Colomban, Ph., Fabian, Martin, Antić, Bratislav, "Effects of Eu3+ Concentration on Structural, Optical and Vibrational Properties of Multifunctional Ce1-X,EuXO2-delta Nanoparticles Synthesized by Thermolysis of 2,4-Pentanedione Complexes" in Journal of Nanoscience and Nanotechnology, 12, no. 12 (2012):8893-8899,
https://doi.org/10.1166/jnn.2012.6797 . .

TY  - JOUR
AU  - Vucinic-Vasic, Milica
AU  - Kremenović, Aleksandar
AU  - Nikolić, Aleksandar S.
AU  - Colomban, Philippe
AU  - Mazzerolles, Leo
AU  - Kahlenberg, Volker
AU  - Antić, Bratislav
PY  - 2010
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1094
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.
PB  - Elsevier Science Sa, Lausanne
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 = "Vucinic-Vasic, Milica and Kremenović, Aleksandar 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.",
publisher = "Elsevier Science Sa, Lausanne",
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"
}

Vucinic-Vasic, M., Kremenović, A., 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
Elsevier Science Sa, Lausanne., 502(1), 107-111.
https://doi.org/10.1016/j.jallcom.2010.03.158

Vucinic-Vasic M, Kremenović A, 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 .

Vucinic-Vasic, Milica, Kremenović, Aleksandar, 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 . .

TY  - JOUR
AU  - Antić, Bratislav
AU  - Kremenović, Aleksandar
AU  - Vučinić-Vasić, M.
AU  - Dohcevic-Mitrovic, Z.
AU  - Nikolić, Aleksandar S.
AU  - Gruden-Pavlović, Maja
AU  - Jancar, B.
AU  - Meden, A.
PY  - 2010
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1085
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 particle's 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.
PB  - Elsevier Science Sa, Lausanne
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 and Vučinić-Vasić, M. and Dohcevic-Mitrovic, Z. and Nikolić, Aleksandar S. and Gruden-Pavlović, Maja and Jancar, B. 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 particle's 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.",
publisher = "Elsevier Science Sa, Lausanne",
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., Vučinić-Vasić, M., Dohcevic-Mitrovic, Z., Nikolić, A. S., Gruden-Pavlović, M., Jancar, 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
Elsevier Science Sa, Lausanne., 122(2-3), 386-391.
https://doi.org/10.1016/j.matchemphys.2010.03.010

Antić B, Kremenović A, Vučinić-Vasić M, Dohcevic-Mitrovic Z, Nikolić AS, Gruden-Pavlović M, Jancar 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, Vučinić-Vasić, M., Dohcevic-Mitrovic, Z., Nikolić, Aleksandar S., Gruden-Pavlović, Maja, Jancar, 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, 122, no. 2-3 (2010):386-391,
https://doi.org/10.1016/j.matchemphys.2010.03.010 . .

TY  - JOUR
AU  - Antić, Bratislav
AU  - Rogan, J.
AU  - Kremenović, Aleksandar
AU  - Nikolić, Aleksandar S.
AU  - Vučinić-Vasić, M.
AU  - Bozanic, D. K.
AU  - Goya, G. F.
AU  - Colomban, Ph
PY  - 2010
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1082
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.
PB  - Iop Publishing Ltd, Bristol
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, J. and Kremenović, Aleksandar and Nikolić, Aleksandar S. and Vučinić-Vasić, M. and Bozanic, D. K. and Goya, G. 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.",
publisher = "Iop Publishing Ltd, Bristol",
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., Kremenović, A., Nikolić, A. S., Vučinić-Vasić, M., Bozanic, 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
Iop Publishing Ltd, Bristol., 21(24).
https://doi.org/10.1088/0957-4484/21/24/245702

Antić B, Rogan J, Kremenović A, Nikolić AS, Vučinić-Vasić M, Bozanic 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, J., Kremenović, Aleksandar, Nikolić, Aleksandar S., Vučinić-Vasić, M., Bozanic, D. K., Goya, G. 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 . .

TY  - JOUR
AU  - Antić, Bratislav
AU  - Jovic, N.
AU  - Pavlović, Miodrag B.
AU  - Kremenović, Aleksandar
AU  - Manojlović, Dragan D.
AU  - Vučinić-Vasić, M.
AU  - Nikolić, Aleksandar S.
PY  - 2010
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1053
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.
PB  - Amer Inst Physics, Melville
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 Jovic, N. and Pavlović, Miodrag B. and Kremenović, Aleksandar and Manojlović, Dragan D. and Vučinić-Vasić, M. 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.",
publisher = "Amer Inst Physics, Melville",
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., Jovic, N., Pavlović, M. B., Kremenović, A., 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
Amer Inst Physics, Melville., 107(4).
https://doi.org/10.1063/1.3319563

Antić B, Jovic N, Pavlović MB, Kremenović A, 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, Jovic, N., Pavlović, Miodrag B., Kremenović, Aleksandar, Manojlović, Dragan D., Vučinić-Vasić, M., 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 . .

TY  - JOUR
AU  - Vučinić-Vasić, M.
AU  - Antić, Bratislav
AU  - Kremenović, Aleksandar
AU  - Nikolić, Aleksandar S.
AU  - Blanusa, J.
AU  - Rakic, S.
AU  - Spasojević, Vojislav
AU  - Kapor, A.
PY  - 2007
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/820
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.
PB  - Elsevier Science Sa, Lausanne
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, M. and Antić, Bratislav and Kremenović, Aleksandar and Nikolić, Aleksandar S. and Blanusa, J. and Rakic, S. and Spasojević, Vojislav and Kapor, A.",
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.",
publisher = "Elsevier Science Sa, Lausanne",
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., Nikolić, A. S., Blanusa, J., Rakic, 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
Elsevier Science Sa, Lausanne., 428(1-2), 322-326.
https://doi.org/10.1016/j.jallcom.2006.03.042

Vučinić-Vasić M, Antić B, Kremenović A, Nikolić AS, Blanusa J, Rakic 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, M., Antić, Bratislav, Kremenović, Aleksandar, Nikolić, Aleksandar S., Blanusa, J., Rakic, S., Spasojević, Vojislav, 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, 428, no. 1-2 (2007):322-326,
https://doi.org/10.1016/j.jallcom.2006.03.042 . .

TY  - JOUR
AU  - Kremenović, Aleksandar
AU  - Antić, Bratislav
AU  - Nikolić, Aleksandar S.
AU  - Blanusa, J.
AU  - Jancar, B.
AU  - Meden, A.
AU  - Mentus, Slavko V.
PY  - 2007
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/887
AB  - A novel synthesis route based on thermal decomposition of yttrium and gadolinium complexes with 2,4-pentanedione ligand has been used to synthesize 5 nn size (Y0.9Gd0.1)(2)O-3 powder. Refinement of occupancy parameters revealed that Gd3+ ions preferably occupy C-3i sites in host Y2O3, forming a material with a metastable cation distribution. The average crystallite size was found to increase, and the average microstrain to decrease, as the annealing temperature is increased, while the Gd3+ ion distribution remained metastable in nature. Small anisotropic X-ray powder diffraction pattern line broadening due to crystallite size effects was observed. The inverse susceptibility of the 5 nn sample exhibits unusual break in slope to a smaller value below 2.7 K. (C) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Scripta Materialia
T1  - The dependence of cation distribution, microstrain and magnetic susceptibility on particle size in nanocrystalline Gd2O3/Y2O3
VL  - 57
IS  - 12
SP  - 1061
EP  - 1064
DO  - 10.1016/j.scriptamat.2007.09.002
ER  - 

@article{
author = "Kremenović, Aleksandar and Antić, Bratislav and Nikolić, Aleksandar S. and Blanusa, J. and Jancar, B. and Meden, A. and Mentus, Slavko V.",
year = "2007",
abstract = "A novel synthesis route based on thermal decomposition of yttrium and gadolinium complexes with 2,4-pentanedione ligand has been used to synthesize 5 nn size (Y0.9Gd0.1)(2)O-3 powder. Refinement of occupancy parameters revealed that Gd3+ ions preferably occupy C-3i sites in host Y2O3, forming a material with a metastable cation distribution. The average crystallite size was found to increase, and the average microstrain to decrease, as the annealing temperature is increased, while the Gd3+ ion distribution remained metastable in nature. Small anisotropic X-ray powder diffraction pattern line broadening due to crystallite size effects was observed. The inverse susceptibility of the 5 nn sample exhibits unusual break in slope to a smaller value below 2.7 K. (C) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Scripta Materialia",
title = "The dependence of cation distribution, microstrain and magnetic susceptibility on particle size in nanocrystalline Gd2O3/Y2O3",
volume = "57",
number = "12",
pages = "1061-1064",
doi = "10.1016/j.scriptamat.2007.09.002"
}

Kremenović, A., Antić, B., Nikolić, A. S., Blanusa, J., Jancar, B., Meden, A.,& Mentus, S. V.. (2007). The dependence of cation distribution, microstrain and magnetic susceptibility on particle size in nanocrystalline Gd2O3/Y2O3. in Scripta Materialia
Pergamon-Elsevier Science Ltd, Oxford., 57(12), 1061-1064.
https://doi.org/10.1016/j.scriptamat.2007.09.002

Kremenović A, Antić B, Nikolić AS, Blanusa J, Jancar B, Meden A, Mentus SV. The dependence of cation distribution, microstrain and magnetic susceptibility on particle size in nanocrystalline Gd2O3/Y2O3. in Scripta Materialia. 2007;57(12):1061-1064.
doi:10.1016/j.scriptamat.2007.09.002 .

Kremenović, Aleksandar, Antić, Bratislav, Nikolić, Aleksandar S., Blanusa, J., Jancar, B., Meden, A., Mentus, Slavko V., "The dependence of cation distribution, microstrain and magnetic susceptibility on particle size in nanocrystalline Gd2O3/Y2O3" in Scripta Materialia, 57, no. 12 (2007):1061-1064,
https://doi.org/10.1016/j.scriptamat.2007.09.002 . .

TY  - JOUR
AU  - Blanusa, J.
AU  - Antić, Bratislav
AU  - Kremenović, Aleksandar
AU  - Nikolić, Aleksandar S.
AU  - Mazzerolles, L.
AU  - Mentus, Slavko V.
AU  - Spasojević, Vojislav
PY  - 2007
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/893
AB  - New synthesis routine based on thermal decomposition of an erbium complex with acetylacetonato ligand (2, 4-pentadione) was used to prepare nanosized Er2O3 with a particle size of 5 nm and a narrow size distribution. For the sake of comparison, the ultrafine-Er2O3 powder was prepared by precipitation and subsequent sintering. The magnetic susceptibility of nanosized Er2O3 indicates the antiferromagnetic  lt - gt  paramagnetic transition at 1.8 K or lower, while in ultrafine such as in a bulk counterpart the transition was observed at noticeably higher temperature of similar to 3.4 K. The decrease in Neel temperature, observed in the case of nanosized Er2O3 sample, was attributed to both particle surface and core effects. (c) 2007 Elsevier Ltd. All rights reserved.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Solid State Communications
T1  - Particle size effect on Neel temperature in Er2O3 nanopowder synthesized by thermolysis of 2, 4-pentadione complex
VL  - 144
IS  - 7-8
SP  - 310
EP  - 314
DO  - 10.1016/j.ssc.2007.09.003
ER  - 

@article{
author = "Blanusa, J. and Antić, Bratislav and Kremenović, Aleksandar and Nikolić, Aleksandar S. and Mazzerolles, L. and Mentus, Slavko V. and Spasojević, Vojislav",
year = "2007",
abstract = "New synthesis routine based on thermal decomposition of an erbium complex with acetylacetonato ligand (2, 4-pentadione) was used to prepare nanosized Er2O3 with a particle size of 5 nm and a narrow size distribution. For the sake of comparison, the ultrafine-Er2O3 powder was prepared by precipitation and subsequent sintering. The magnetic susceptibility of nanosized Er2O3 indicates the antiferromagnetic  lt - gt  paramagnetic transition at 1.8 K or lower, while in ultrafine such as in a bulk counterpart the transition was observed at noticeably higher temperature of similar to 3.4 K. The decrease in Neel temperature, observed in the case of nanosized Er2O3 sample, was attributed to both particle surface and core effects. (c) 2007 Elsevier Ltd. All rights reserved.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Solid State Communications",
title = "Particle size effect on Neel temperature in Er2O3 nanopowder synthesized by thermolysis of 2, 4-pentadione complex",
volume = "144",
number = "7-8",
pages = "310-314",
doi = "10.1016/j.ssc.2007.09.003"
}

Blanusa, J., Antić, B., Kremenović, A., Nikolić, A. S., Mazzerolles, L., Mentus, S. V.,& Spasojević, V.. (2007). Particle size effect on Neel temperature in Er2O3 nanopowder synthesized by thermolysis of 2, 4-pentadione complex. in Solid State Communications
Pergamon-Elsevier Science Ltd, Oxford., 144(7-8), 310-314.
https://doi.org/10.1016/j.ssc.2007.09.003

Blanusa J, Antić B, Kremenović A, Nikolić AS, Mazzerolles L, Mentus SV, Spasojević V. Particle size effect on Neel temperature in Er2O3 nanopowder synthesized by thermolysis of 2, 4-pentadione complex. in Solid State Communications. 2007;144(7-8):310-314.
doi:10.1016/j.ssc.2007.09.003 .

Blanusa, J., Antić, Bratislav, Kremenović, Aleksandar, Nikolić, Aleksandar S., Mazzerolles, L., Mentus, Slavko V., Spasojević, Vojislav, "Particle size effect on Neel temperature in Er2O3 nanopowder synthesized by thermolysis of 2, 4-pentadione complex" in Solid State Communications, 144, no. 7-8 (2007):310-314,
https://doi.org/10.1016/j.ssc.2007.09.003 . .

TY  - JOUR
AU  - Vučinić-Vasić, M.
AU  - Antić, Bratislav
AU  - Blanusa, J
AU  - Rakic, S
AU  - Kremenović, Aleksandar
AU  - Nikolić, Aleksandar S.
AU  - Kapor, A
PY  - 2006
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/743
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).
PB  - Springer, New York
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, M. and Antić, Bratislav and Blanusa, J and Rakic, S and Kremenović, Aleksandar and Nikolić, Aleksandar S. and Kapor, A",
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).",
publisher = "Springer, New York",
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., Blanusa, J., Rakic, S., Kremenović, A., 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
Springer, New York., 82(1), 49-54.
https://doi.org/10.1007/s00339-005-3378-y

Vučinić-Vasić M, Antić B, Blanusa J, Rakic S, Kremenović A, 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, M., Antić, Bratislav, Blanusa, J, Rakic, S, Kremenović, Aleksandar, Nikolić, Aleksandar S., 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, 82, no. 1 (2006):49-54,
https://doi.org/10.1007/s00339-005-3378-y . .

TY  - JOUR
AU  - Antić, Bratislav
AU  - Kremenović, Aleksandar
AU  - Nikolić, Aleksandar S.
AU  - Stoiljkovic, M
PY  - 2004
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/656
AB  - The ultrafine ZnFe2O4, MnFe2O4, and cation deficit Zn-Mn ferrites were obtained by thermal decomposition of appropriate mixed complex compounds with acetylacetone (2,4-pentadione) ligands ([M(AA),]) at 500 degreesC. In ZnFe2O4 cation distribution is partially inverse with 14% of Zn2+ ions at octahedral 16d sites, while MnFe2O4 is a normal spinel. Cation distribution in nonstoichiometric (Zn,Mn,Fe)(3-delta)O-4 (delta = 0.18-0.30) is found to be (Zn(x)Mn(y)square(epsilon))(8a)[Fe(z)square(v)](16d), with a random distribution of vacancies. Nonstoichiometry in Zn-Mn ferrites is accompanied by a cation valence change, i.e., partial oxidation of Mn2+ to Mn4+. Microstructure size-strain analysis shows isotropic X-ray line broadening due to the crystallite size effect and anisotropic X-ray line broadening due to the crystallite strain effect. In binary ferrites anisotropic X-ray line broadening due to the strain effect is higher in ZnFe2O4 than in MnFe2O4, while in ternary cation-deficient Zn-Mn ferrites it decreases as the vacancy concentration delta increases.
PB  - Amer Chemical Soc, Washington
T2  - Journal of Physical Chemistry. Part B: Condensed Matter, Materials, Surfaces, Interfaces and Biophys
T1  - Cation distribution and size-strain microstructure analysis in ultrarine Zn-Mn ferrites obtained from acetylacetonato complexes
VL  - 108
IS  - 34
SP  - 12646
EP  - 12651
DO  - 10.1021/jp036214v
ER  - 

@article{
author = "Antić, Bratislav and Kremenović, Aleksandar and Nikolić, Aleksandar S. and Stoiljkovic, M",
year = "2004",
abstract = "The ultrafine ZnFe2O4, MnFe2O4, and cation deficit Zn-Mn ferrites were obtained by thermal decomposition of appropriate mixed complex compounds with acetylacetone (2,4-pentadione) ligands ([M(AA),]) at 500 degreesC. In ZnFe2O4 cation distribution is partially inverse with 14% of Zn2+ ions at octahedral 16d sites, while MnFe2O4 is a normal spinel. Cation distribution in nonstoichiometric (Zn,Mn,Fe)(3-delta)O-4 (delta = 0.18-0.30) is found to be (Zn(x)Mn(y)square(epsilon))(8a)[Fe(z)square(v)](16d), with a random distribution of vacancies. Nonstoichiometry in Zn-Mn ferrites is accompanied by a cation valence change, i.e., partial oxidation of Mn2+ to Mn4+. Microstructure size-strain analysis shows isotropic X-ray line broadening due to the crystallite size effect and anisotropic X-ray line broadening due to the crystallite strain effect. In binary ferrites anisotropic X-ray line broadening due to the strain effect is higher in ZnFe2O4 than in MnFe2O4, while in ternary cation-deficient Zn-Mn ferrites it decreases as the vacancy concentration delta increases.",
publisher = "Amer Chemical Soc, Washington",
journal = "Journal of Physical Chemistry. Part B: Condensed Matter, Materials, Surfaces, Interfaces and Biophys",
title = "Cation distribution and size-strain microstructure analysis in ultrarine Zn-Mn ferrites obtained from acetylacetonato complexes",
volume = "108",
number = "34",
pages = "12646-12651",
doi = "10.1021/jp036214v"
}

Antić, B., Kremenović, A., Nikolić, A. S.,& Stoiljkovic, M.. (2004). Cation distribution and size-strain microstructure analysis in ultrarine Zn-Mn ferrites obtained from acetylacetonato complexes. in Journal of Physical Chemistry. Part B: Condensed Matter, Materials, Surfaces, Interfaces and Biophys
Amer Chemical Soc, Washington., 108(34), 12646-12651.
https://doi.org/10.1021/jp036214v

Antić B, Kremenović A, Nikolić AS, Stoiljkovic M. Cation distribution and size-strain microstructure analysis in ultrarine Zn-Mn ferrites obtained from acetylacetonato complexes. in Journal of Physical Chemistry. Part B: Condensed Matter, Materials, Surfaces, Interfaces and Biophys. 2004;108(34):12646-12651.
doi:10.1021/jp036214v .

Antić, Bratislav, Kremenović, Aleksandar, Nikolić, Aleksandar S., Stoiljkovic, M, "Cation distribution and size-strain microstructure analysis in ultrarine Zn-Mn ferrites obtained from acetylacetonato complexes" in Journal of Physical Chemistry. Part B: Condensed Matter, Materials, Surfaces, Interfaces and Biophys, 108, no. 34 (2004):12646-12651,
https://doi.org/10.1021/jp036214v . .