FeP as cocatalyst for ultra-low Pt oxygen reduction reaction catalyst.

The preparation of low Pt catalysts for oxygen reduction reaction (ORR) has been the focus research in fuel cell. Here, Pt&FeP@NC with ultra-low Pt loading (∼2 wt% Pt, one tenth of the commercial 20 wt% Pt/C) is prepared by introducing FeP cocatalyst into Pt-based catalyst through a simple two-step pyrolysis method. Pt&FeP@NC shows excellent ORR electrocatalytic performance in 0.