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  - Blanusa, J
AU  - Antić, Bratislav
AU  - Nikolić, Aleksandar S.
AU  - Rakic, S
AU  - Jovic, N
AU  - Sreckovic, M
PY  - 2004
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/573
AB  - The ultrafine spinel NiFe1.9M0.1O4 powders (M=Al, Y, Cr, Fe) were synthesized by thermal decomposition of appropriate mixtures of complex compounds with acetylacetone - (2,4 pentadione) ligands ([M(AA)(x)]) at 500 degreesC. Samples were annealed in the temperature range 600-1000 degreesC and the crystallization process was followed by XRD. The largest crystallite size and the highest crystallization rate are observed for NiFe1.9Al0.1O4, while the opposite was found for NiFe1.9Y0.1O4. Strain value in NiFe1.9Y0.1O4 changes sign at temperatures between 700-800 degreesC, while for NiFe1.9M0.1O4 (M=Al, Cr) it has a positive sign and reaches the maximum value at 700 degreesC. The crystal structure of the Samples annealed at 1000 degreesC was refined using the Rietveld profile method. Cation substitution in Ni-ferrite changes its structural and microstructural parameters, and can also significantly influence other physical properties.
PB  - Trans Tech Publications Ltd, Zurich-Uetikon
T2  - Materials Science Forum
T1  - Synthesis and characterization of Al, Y, Co and Cr substituted ultrafine powder of NiFe2O4
SP  - 283
EP  - 286
DO  - 10.4028/www.scientific.net/MSF.443-444.283
ER  - 

@article{
author = "Blanusa, J and Antić, Bratislav and Nikolić, Aleksandar S. and Rakic, S and Jovic, N and Sreckovic, M",
year = "2004",
abstract = "The ultrafine spinel NiFe1.9M0.1O4 powders (M=Al, Y, Cr, Fe) were synthesized by thermal decomposition of appropriate mixtures of complex compounds with acetylacetone - (2,4 pentadione) ligands ([M(AA)(x)]) at 500 degreesC. Samples were annealed in the temperature range 600-1000 degreesC and the crystallization process was followed by XRD. The largest crystallite size and the highest crystallization rate are observed for NiFe1.9Al0.1O4, while the opposite was found for NiFe1.9Y0.1O4. Strain value in NiFe1.9Y0.1O4 changes sign at temperatures between 700-800 degreesC, while for NiFe1.9M0.1O4 (M=Al, Cr) it has a positive sign and reaches the maximum value at 700 degreesC. The crystal structure of the Samples annealed at 1000 degreesC was refined using the Rietveld profile method. Cation substitution in Ni-ferrite changes its structural and microstructural parameters, and can also significantly influence other physical properties.",
publisher = "Trans Tech Publications Ltd, Zurich-Uetikon",
journal = "Materials Science Forum",
title = "Synthesis and characterization of Al, Y, Co and Cr substituted ultrafine powder of NiFe2O4",
pages = "283-286",
doi = "10.4028/www.scientific.net/MSF.443-444.283"
}

Blanusa, J., Antić, B., Nikolić, A. S., Rakic, S., Jovic, N.,& Sreckovic, M.. (2004). Synthesis and characterization of Al, Y, Co and Cr substituted ultrafine powder of NiFe2O4. in Materials Science Forum
Trans Tech Publications Ltd, Zurich-Uetikon., 283-286.
https://doi.org/10.4028/www.scientific.net/MSF.443-444.283

Blanusa J, Antić B, Nikolić AS, Rakic S, Jovic N, Sreckovic M. Synthesis and characterization of Al, Y, Co and Cr substituted ultrafine powder of NiFe2O4. in Materials Science Forum. 2004;:283-286.
doi:10.4028/www.scientific.net/MSF.443-444.283 .

Blanusa, J, Antić, Bratislav, Nikolić, Aleksandar S., Rakic, S, Jovic, N, Sreckovic, M, "Synthesis and characterization of Al, Y, Co and Cr substituted ultrafine powder of NiFe2O4" in Materials Science Forum (2004):283-286,
https://doi.org/10.4028/www.scientific.net/MSF.443-444.283 . .