FUEL CELL CATALYST, FUEL CELL ELECTRODE AND POLYMER ELECTROLYTE FUEL CELL PROVIDED WITH SUCH FUEL CELL ELECTRODE

摘要

Provided is a fuel cell catalyst wherein a catalyst is supported by a carrier. The value of average pore diameter of the catalyst carrier/catalyst metal particle diameter (PGM) is 0.5 or more but not more than 1.8. The fuel cell catalyst with less voltage deterioration even after a long use is provided.