Synthesis and structural characterization of perovskite YFeO3 by thermal decomposition of a cyano complex precursor, Y[Fe(CN)6]·4H2O

被引：0
|
作者：
Diego M. Gil
M. Carolina Navarro
M. Cristina Lagarrigue
J. Guimpel
Raúl E. Carbonio
M. Inés Gómez
机构：
[1] Universidad Nacional de Tucumán,Instituto de Química Inorgánica, Facultad de Bioquímica, Química y Farmacia
[2] Universidad Nacional de Córdoba,Departamento de Fisicoquímica, Facultad de Ciencias Químicas, Instituto de Investigaciones en Fisicoquímica de Córdoba (INFIQC)
[3] Comisión Nacional de Energía Atómica,CONICET
[4] Universidad Nacional de Cuyo,Centro Atómico Bariloche, Instituto Balseiro
来源：
Journal of Thermal Analysis and Calorimetry | 2011年 / 103卷
关键词：
Y[Fe(CN); ]·4H; O; YFeO; Crystal structure; Low temperature synthesis; Thermal decomposition;
D O I：
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中图分类号：
学科分类号：
摘要：
The thermal decomposition of Y[Fe(CN)6]·4H2O has been studied in order to investigate the formation of the multi-ferroic oxide YFeO3. The starting material (Y[Fe(CN)6]·4H2O) and the decomposition products were characterized by IR spectroscopy, thermal analysis, X-ray powder diffraction (PXRD), and scanning electron microscopy. Metastable YFeO3 with hexagonal structure, space group P63/mmc, was obtained by thermal decomposition of Y[Fe(CN)6]·4H2O at 600 °C in air. Orthorhombic YFeO3 was obtained by the same method at T ≥ 800 °C in air. The crystal structure of orthorhombic YFeO3 was refined by Rietveld analysis using PXRD data. We found that it was slightly deficient in Y3+, which is in agreement with the small amount of Y2O3 found as impurity in the sample. The formula of the orthorhombic phase is Y0.986FeO3.
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页码：889 / 896
页数：7
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