摘要
Hydrogen has been considering as a promising renewable energy source and a viable alternative for fossil-fuels in the future[1,2].Hydrogen oxidation reaction(HOR)and its reverse reaction are two significant reactions for applying hydrogen as electrochemical energy.On the other hand,platinum is believed to be the best electrocatalyst for HOR,although several drawbacks including high cost,scarcity,low CO tolerance,and depressed catalytic activities in alkaline environments,hinder the development of hydrogen application[1].Hence,it is highly desired to develop Pt-free HOR catalysts with high activity,high stability,low cost,and good resistance to CO poisoning[3].
