Method for producing perovskite-type manganese oxide and method for forming film of perovskite-type manganese oxide

摘要

PROBLEM TO BE SOLVED: To manufacture perovskite type manganese oxide simply and efficiently.SOLUTION: In a manufacturing method of perovskite type manganese oxide, water in which a compound containing manganese and a compound containing other metals are dissolved or dispersed and an alkali solution are mixed to produce a reaction liquid (Step S11). Then oxygen dissolution treatment is conducted to the reaction liquid (Step S12). The oxygen dissolution treatment is for example bubbling of oxygen in the reaction liquid. After the oxygen dissolution treatment, a hydrothermal treatment is conducted by heating the reaction liquid in a vessel with a closed state (Step S13). The hydrothermal treatment can be conducted at relatively low temperature and short time because dissolved oxygen concentration of the reaction liquid is high. After completion of the hydrothermal treatment, perovskite type manganese oxide formed in the vessel is removed (Step S14). By above treatments, simply and efficiently manufacturing of perovskite type manganese oxide is achieved.SELECTED DRAWING: Figure 1