High Oxygen Reduction Activity of Pt-Ni Alloy Catalyst for Proton Exchange Membrane Fuel Cells

In order to fill the research gap of high metal loading performance PtNi alloy catalysts, a PtNi/C nano-catalyst with more than 50 wt.% and core-shell like structure was prepared by ethylene glycol reduction, temperature annealing, acid pickling. The electrochemical test results showed that catalyst had excellent activity: surface area (ECSA) 63.8 m2·gPt?1, mass activity (MA) 0.574 A·mgPt?1, which is 2.73 times greater those Pt/C JM (Johnson Matthey) catalyst. durability further investigated. After 30 K cycles accelerated test, ECSA MA decreased 10.2% 31.2%, respectively. in this study has catalytic overcomes problem insufficient traditional catalysts potential for large-scale commercial application.