Pt 35 Cu 65 nanoarchitecture: a highly durable and effective electrocatalyst towards methanol oxidation

Aiming at electro-catalytic performance enhancement and reduction of catalyst cost, Pt x Cu 1− x (Pt 35 Cu 65 , Pt 53 Cu 47 , and Pt 68 Cu 32 ) nanoarchitecture samples with controllable atomic composition, similar morphology and particle-size have been prepared by using a one-pot chemical route. The as-prepared Pt x Cu 1− x nanoarchitectures are confirmed as consisting of the integration of initial small alloy nanoparticles (NPs), resulting in an interconnected nanoporous structure. The electrochemical experiments indicate that these Pt x Cu 1− x nanocatalysts exhibit atomic composition dependent catalytic activity, although the surfaces of all the catalysts were characterized to be featured with a Pt enrichment structure. With optimal atomic composition, the Pt 35 Cu 65 catalyst possesses enhanced electro-cataly...

Yuan Zhang, Tingting Han, Lilian Zhu, Jianhui Fang, Gang wang, Jiaqiang Xu, Pengcheng Xu, Xinxin Li and Chung-Chiun Liu

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