Platinum-tin oxide core-shell catalysts for efficient electro-oxidation of ethanol.

Academic Article

Abstract

  • Platinum-tin (Pt/Sn) binary nanoparticles are active electrocatalysts for the ethanol oxidation reaction (EOR), but inactive for splitting the C-C bond of ethanol to CO2. Here we studied detailed structure properties of Pt/Sn catalysts for the EOR, especially CO2 generation in situ using a CO2 microelectrode. We found that composition and crystalline structure of the tin element played important roles in the CO2 generation: non-alloyed Pt46-(SnO2)54 core-shell particles demonstrated a strong capability for C-C bond breaking of ethanol than pure Pt and intermetallic Pt/Sn, showing 4.1 times higher CO2 peak partial pressure generated from EOR than commercial Pt/C.
  • Authors

  • Du, Wenxin
  • Yang, Guangxing
  • Wong, Emily
  • Deskins, N Aaron
  • Frenkel, Anatoly I
  • Su, Dong
  • Teng, Xiaowei
  • Status

    Publication Date

  • August 6, 2014
  • Keywords

  • Alloys
  • Catalysis
  • Electrochemistry
  • Ethanol
  • Oxidation-Reduction
  • Platinum
  • Tin Compounds
  • Digital Object Identifier (doi)

    Pubmed Id

  • 25033229
  • Start Page

  • 10862
  • End Page

  • 10865
  • Volume

  • 136
  • Issue

  • 31