Preparation and Characterization of CO-Tolerant Pt and Pd Anodes Modified with SnO[sub 2] Nanoparticles for PEFC

The and anodes modified with nanoparticles for the polymer electrolyte fuel cell (PEFC) were investigated using pure and -contaminated as fuel gas. Modification of the anode with nanoparticles enhanced the cell performance in pure , while modification of the anode a little lowered the performance. The effect of addition on the performances of the cell with the Pd anode in -contaminated was examined. The cell voltage with the anode in -contaminated was at a current density of , while that in pure was . The anode exhibited good tolerance to poisoning, since the anode adsorbed more weakly. Neither electrochemical oxidation of nor shift reaction contributed to the tolerance of the anode.