A convenient route for the synthesis of complex metal oxides employing solid-solution precursors

Vidyasagar, K. ; Gopalakrishnan, J. ; Rao, C. N. R. (1984) A convenient route for the synthesis of complex metal oxides employing solid-solution precursors Inorganic Chemistry, 23 (9). pp. 1206-1210. ISSN 0020-1669

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Official URL: http://pubs.acs.org/doi/abs/10.1021/ic00177a008

Related URL: http://dx.doi.org/10.1021/ic00177a008

Abstract

Synthesis of complex metal oxides by the thermal decomposition of solid-solution precursors (formed by isomorphous compounds of component metals) has been investigated since the method enables mixing of cations on an atomic scale and drastically reduces diffusion distances to a few angstroms. Several interesting oxides such as Ca2Fe03.5, CaCo204, Ca2C0205 and Ca2FeCo05 have been prepared by this technique starting from carbonate solid solutions of the type Ca1-xFexC03, Ca1-xCoxC03, and Ca1-x-yMxM'yC03 (M, M' = Mn, Fe, Co). The method has been extended to oxalate solid-solution precursors, and the possibility of making use of other kinds of precursor solid solutions is indicated.

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ID Code:12827
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