Abstract
Abstract A binary complex perovskite solid solution, Sr(Cu,Zn) 1 2 W 1 2 O 3 (SCZW), was synthesized using a precursor of (Cu,Zn)WO4 (CZW) prepared by a combination of wet and dry methods. Compositional fluctuations in the resulting material were investigated. The new method includes three steps. The first step is a preparation of an oxide mixture of CuO and ZnO (CZ) by the decomposition of a coprecipitate of Cu2+ and Zn2+ (wet process). The second step is a solid-state reaction between CZ and WO3 (dry process) to form a precursor, CZW. The third step is a solid-state reaction between SrCO3 and CZW to form SCZW. Powder X-ray diffraction analysis revealed that the SCZW was free from the compositional fluctuation which could not be eliminated by application of the precursor method alone.
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