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Ordered platinum–bismuth intermetallic clusters with Pt-skin for a highly efficient electrochemical ethanol oxidation reaction

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Abstract

The ethanol oxidation reaction is extensively explored, but electrocatalysts that could achieve a complete oxidation pathway to CO2/CO32− are much less reported. Here, we synthesize a monatomic Pt layer (Pt-skin) on ordered intermetallic PtBi clusters (PtBi@Pt) supported on graphene via a single atom self-assembling (SAS) method to form a superior catalyst. The PtBi@Pt with an ultrafine size (∼2 nm) delivers an extremely high mass activity of 9.01 mA μgPt−1, which is 8-fold more active than the commercial Pt/C; significantly, in situ Fourier transform infrared spectroscopy indicates that ethanol is completely oxidized to CO32− on the PtBi@Pt, accompanied by 12 electron transfer, as is further demonstrated by the density functional theory results.

Graphical abstract: Ordered platinum–bismuth intermetallic clusters with Pt-skin for a highly efficient electrochemical ethanol oxidation reaction

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Publication details

The article was received on 03 Oct 2018, accepted on 01 Feb 2019 and first published on 04 Feb 2019


Article type: Communication
DOI: 10.1039/C8TA09553A
Citation: J. Mater. Chem. A, 2019, Advance Article

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    Ordered platinum–bismuth intermetallic clusters with Pt-skin for a highly efficient electrochemical ethanol oxidation reaction

    B. Zhang, W. Lai, T. Sheng, X. Qu, Y. Wang, L. Ren, L. Zhang, Y. Du, Y. Jiang, S. Sun and S. Dou, J. Mater. Chem. A, 2019, Advance Article , DOI: 10.1039/C8TA09553A

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