Publication Details

Zhang, B., Lai, W., Sheng, T., Qu, X., Wang, Y., Ren, L., Zhang, L., Du, Y., Jiang, Y., Sun, S. & Dou, S. (2019). Ordered platinum-bismuth intermetallic clusters with Pt-skin for a highly efficient electrochemical ethanol oxidation reaction. Journal of Materials Chemistry A, 7 (10), 5214-5220.


The ethanol oxidation reaction is extensively explored, but electrocatalysts that could achieve a complete oxidation pathway to CO 2 /CO 32- 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 μg Pt-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 CO 32- on the PtBi@Pt, accompanied by 12 electron transfer, as is further demonstrated by the density functional theory results.

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