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

Journal Article


Abstract


  • 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.

Authors


  •   Lai, Weihong
  •   Zhang, Binwei (external author)
  •   Sheng, Tian (external author)
  •   Qu, Xi-Ming (external author)
  •   Wang, Yunxiao
  •   Ren, Long (external author)
  •   Zhang, Lei (external author)
  •   Du, Yi
  •   Jiang, Yan-Xia (external author)
  •   Sun, Shi-Gang (external author)
  •   Dou, Shi Xue

Publication Date


  • 2019

Citation


  • 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.

Scopus Eid


  • 2-s2.0-85062629666

Number Of Pages


  • 6

Start Page


  • 5214

End Page


  • 5220

Volume


  • 7

Issue


  • 10

Place Of Publication


  • United Kingdom

Abstract


  • 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.

Authors


  •   Lai, Weihong
  •   Zhang, Binwei (external author)
  •   Sheng, Tian (external author)
  •   Qu, Xi-Ming (external author)
  •   Wang, Yunxiao
  •   Ren, Long (external author)
  •   Zhang, Lei (external author)
  •   Du, Yi
  •   Jiang, Yan-Xia (external author)
  •   Sun, Shi-Gang (external author)
  •   Dou, Shi Xue

Publication Date


  • 2019

Citation


  • 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.

Scopus Eid


  • 2-s2.0-85062629666

Number Of Pages


  • 6

Start Page


  • 5214

End Page


  • 5220

Volume


  • 7

Issue


  • 10

Place Of Publication


  • United Kingdom