PEROVSKITE OXIDE CATALYST FOR OXYGEN EVOLUTION REACTION

摘要

PROBLEM TO BE SOLVED: To provide an oxygen evolution catalyst as a catalyst for an oxygen evolution reaction, the oxygen evolution catalyst having higher catalyst activity and longer use life than a conventional expensive catalyst made of noble metal oxide such as RuOor IrO.SOLUTION: An A-site ordered perovskite oxide catalyst (CaCuFeOor CaMnMnOor the like) as a cost-effective oxygen evolution reaction catalyst is provided that has higher catalyst activity than that of noble metal oxide catalysts and high stability even under oxidation catalyst reaction conditions and long repeat use life. Applications to important energy exchange reactions such as a charging reaction of a metal-air battery, an anode oxygen evolution reaction during direct water decomposition reaction by sunlight or the like are expected.SELECTED DRAWING: Figure 10