| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a complex oxide by which the highly pure complex oxide can be produced by a low temperature process without being affected by the purity of a raw material. SOLUTION: This method for producing the complex oxide comprising immersing a first metal and a second metal having an ionization tendency smaller than that of the first metal in an aqueous solution containing at least one kind of an ion of a third metal and without containing the first or second metal to provide the objective complex oxide containing the first metal, and the third metal comprises electrically short-circuiting the first metal and the second metal. For example, mutually short-circuited Fe and Pt plates are immersed in an aqueous solution containing Zn(NO3)2 and the temperature of the aqueous solution is raised to 80 deg.C to elute Fe2+ ion, and to react Zn2+ ion in the solution with an acid and to provide ZnFe2O4.
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