Cation distribution and size-strain microstructure analysis in ultrarine Zn-Mn ferrites obtained from acetylacetonato complexes
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2004
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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.
Izvor:
Journal of Physical Chemistry. Part B: Condensed Matter, Materials, Surfaces, Interfaces and Biophys, 2004, 108, 34, 12646-12651Izdavač:
- Amer Chemical Soc, Washington
DOI: 10.1021/jp036214v
ISSN: 1520-6106
WoS: 000223430800006
Scopus: 2-s2.0-4444314500
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Institucija/grupa
Hemijski fakultet / Faculty of ChemistryTY - 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 . .