Enhanced CO tolerance in polymer electrolyte fuel cells with PtMo anodes

摘要

We demonstrate that fuel cells using supported PtMo anode electrocatalysts can exhibit excellent tolerance to 20 ppm CO in H_2. Only some of the supported PtMo samples tested appeared highly tolerant to CO. A key factor correlating with good anode performance in the presence of CO is the particle size of the supported PtMo catalyst.