Robust Pt–Sn alloy decorated graphene nanohybrid cocatalyst for photocatalytic hydrogen evolution

Abstract

The hydrogen evolution activity of Pt was remarkably enhanced by the addition of Sn. The amount of H2 produced in 90 min over the platinum-tin alloy decorated graphene photocatalyst was 1.97 times higher than that of Pt-graphene, and the highest apparent quantum efficiency reached 87.2% at 430 nm.