Platinum‐Tin/Tin Oxide/CNT Catalysts for High‐Performance Electrocatalytic Ethanol Oxidation

The interfacial structure of Pt−Sn/SnOx/CNT composite electrocatalysts was rationally engineered on carbon nanotubes for achieving high-performance electrocatalytic ethanol oxidation. Through a carefully designed two-step (oxidation-reduction) heat-treatment route, the coverage of SnOx thin films on PtSn alloy nanoparticles can be facilely tuned by the strong interaction between Pt and SnOx. The optimized PtSn−SnOx interface showed significantly improved performances toward ethanol oxidation reaction.