Long-term MEA Performances for Reformate Type PEFCs with Anode Catalysts Using Organic Metal Complexes

New CO tolerant anode catalysts for reformate type polymer electrolyte fuel cells are proposed that are superior to state-of-the-art Pt-Ru metal alloy catalysts. Composite catalysts based on platinum and organic metal complexes were fabricated by a new procedure where platinum precursor, metal complex and carbon black powder were mixed and then heat-treated in Ar atmosphere at 400°C. Catalysts were evaluated in the anode half cell or single fuel cell at 70°C with H2 containing various levels of CO. Compared with commercial Pt-Ru/C catalysts, new anode catalysts proved to be very promising both in initial and long term performances.