Post-annealing Effects on Reaction Selectivity of Methanol Oxidation at Carbon-based Platinum Co-sputtered Electrocatalyst

  • INOUE Mitsuhiro
    Hydrogen Isotope Research Center, University of Toyama
  • NAGAI Kazuhiro
    Department of Materials Science and Technology, Faculty of Engineering, Nagaoka University of Technology
  • SHIRONITA Sayoko
    Department of Materials Science and Technology, Faculty of Engineering, Nagaoka University of Technology
  • ABE Takayuki
    Hydrogen Isotope Research Center, University of Toyama
  • UMEDA Minoru
    Department of Materials Science and Technology, Faculty of Engineering, Nagaoka University of Technology

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抄録

A carbon with Pt (C–Pt) catalyst was prepared by a co-sputtering technique. Pt4f peaks of the prepared sample were observed at higher binding energies than those of a Pt sputtered sample. These Pt4f peaks shifted to the low binding energies with an increase in a post-annealing temperature, whereas the C1s peak position was unchanged. For the C–Pt catalyst as sputter-deposited, the methanol oxidation performance was enhanced by the presence of O2. This O2-enhnaced methanol oxidation was suppressed by the post-annealing at 160°C, while the reaction selectivity of the methanol oxidation was retained.

収録刊行物

  • Electrochemistry

    Electrochemistry 83 (5), 368-371, 2015

    公益社団法人 電気化学会

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