METAL OXIDE ELECTRODE CATALYST, USE THEREOF, AND METHOD FOR PRODUCING METAL OXIDE ELECTRODE CATALYST

摘要

Metal oxide electrocatalysts of the invention have high oxygen reduction activity and are useful as alternative materials to platinum catalysts. A metal oxide electrocatalyst includes a metal oxide (Y) obtained by heat treating a metal compound (X) under an oxygen-containing atmosphere, and the valence of a metal in the metal compound (X) is smaller than the valence of the metal in the metal oxide (Y).