Abstract
Abstract 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, IrSn electrode with different anode catalyst loadings was investigated. The IrSn electrode indicates higher mass current and more stable cell voltage than the commercial Ir Black electrode at low loading.
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