CATALYST SUPPORT MATERIAL COMPRISING POLYAZOLE SALT, ELECTROCHEMICAL CATALYST, AND PREPARATION OF GAS DIFFUSION ELECTRODE AND MEMBRANE-ELECTRODE ASSEMBLY THEREOF

摘要

A process for preparing a catalyst material, a catalyst material, a catalyst ink, a catalyst-coated membrane, a gas diffusion electrode, a membrane-electrode assembly, a fuel cell thereof are provided. The catalyst material comprises at least one electrically conductive support material, at least one proton-conducting, acid-doped polymer based on a polyazole salt of an organic or inorganic acid, the polyazole salt being insoluble in phosphoric acid, at least one catalytically active material.