Nanometer flake spinel oxidation catalyst for anion exchange membrane water electrolysis and preparation method thereof

The present invention relates to an oxidation catalyst for water electrolysis of an anion exchange membrane, which exhibits excellent catalytic activity, conductivity and a large surface area, a method for preparing the same, and an anode for water electrolysis of an anion exchange membrane and an anion exchange membrane water electrolysis system each comprising the oxidation catalyst. The oxidation catalyst for water electrolysis of an anion exchange membrane according to the present invention comprises a spinel-based oxide, and is prepared by precisely controlling the use of a complexing agent and the pH value using a coprecipitation method, whereby the oxidation catalyst can be reduced in catalyst particle size to facilitate high-viscosity uniform dispersion and has a nano-sized sheet structure, this makes it possible to uniformly coat the ionomer between the sheets and to form a porous structure, thereby enlarging the surface area and achieving excellent catalytic activity. 本发明涉及一种表现出优异的催化活性、导电性和大的表面积的用于阴