METHANOL RESISTANT CATHODIC CATALYST FOR DIRECT METHANOL FUEL CELLS

摘要

Methanol-tolerant cathodic catalysts were prepared by depositing platinum nanoparticles and iron macrocycles on a carbon substrate. The order of depositing the iron and platinum on the carbon substrate were varied to form a (Fe-Pt)/C catalyst and a (Pt-Fe)/C catalyst. Different sintering temperatures were investigated to determine the heating effect on methanol tolerance. Oxygen reduction with and without the presence of methanol on these new catalysts was evaluated by using a rotating disk electrode system.