METHOD FOR PREPARING ALLOY CATALYST AND METHOD FOR MANUFACTURING SOLID HIGH POLYMER TYPE FUEL CELL

摘要

PROBLEM TO BE SOLVED: To provide a method for preparing an alloy catalyst, in which the alloying degree of an activated metal is made high, the alloy is micronized particle and high activity is attained even in the small quantity of the metal, and a method for manufacturing a solid high polymer type fuel cell having excellent CO poisoning resistance and exhibiting high activation reaction. SOLUTION: The method of preparing the alloy catalyst has a process of forming a colloidal metal oxide by adding >=2 kinds of metallic salts and an oxidizing agent into a solution and a process of supporting an alloy colloid particle on a support by reducing the colloidal metal oxide with a reducing agent or a reducing gas. The method for manufacturing the solid high polymer type fuel cell uses the alloy catalyst prepared by the method.