摘要
An effective oxygen evolution electrode with Ir0.6Sn0.4O2 was designed for proton exchange membrane(PEM)water electrolyzers.The anode catalyst layer exhibits a jagged structure with smaller particles and pores,which provide more active sites and mass transportation channels.The prepared IrSn electrode showed a cell voltage of 1.96 V at 2.0 A cm^-2 with Ir loading as low as 0.294 mg cm^-2.Furthermore,Ir Sn electrode with different anode catalyst loadings was investigated.The IrS n electrode indicates higher mass current and more stable cell voltage than the commercial Ir Black electrode at low loading.
An effective oxygen evolution electrode with Ir0.6Sn0.4O2 was designed for proton exchange membrane（PEM） water electrolyzers. The anode catalyst layer exhibits a jagged structure with smaller particles and pores, which provide more active sites and mass transportation channels. The prepared IrSn electrode showed a cell voltage of 1.96 V at 2.0 A cm-2 with Ir loading as low as 0.294 mg cm-2. Furthermore,Ir Sn electrode with different anode catalyst loadings was investigated. The IrS n electrode indicates higher mass current and more stable cell voltage than the commercial Ir Black electrode at low loading.
基金
financially supported by the National Natural Science Foundation of China(U1664259)
State Grid Corporation of China(No.SGTYHT/15-JS-191,PEMWE MEA Preparation and degradation mechanism)
