Abstract
Plasmonic photocatalysis, based on surface plasmon resonance (SPR) of bimetallic nanoparticles, has been exploited for various applications. We herein successfully synthesize an advanced class of three-dimensional (3D) dendritic core–shell PtAu@Pt photocatalysts, which can greatly promote the electrooxidation of liquid fuel. Interestingly, the optimized 3D core–shell PtAu@Pt photocatalysts exhibit outstanding elextrocatalytic activities toward MOR and EOR under the visible-light irradiation, which are 1.9 and 1.8 times greater than that of ambient reaction, respectively. The broad adsorption of plasmonic Au, electronic effects between Pt and Au, and high surface active areas of 3D dendritic structure greatly contribute to the improved photoelectrocatalytic performances.
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