Separate Current Range for Appearance of Potential Oscillation during Methanol Oxidation on Platinum

DOI Web Site Web Site 被引用文献1件 参考文献35件
  • MUKOUYAMA Yoshiharu
    Division of Science, School of Science and Engineering, Tokyo Denki University
  • FURUYAMA Orimi
    Division of Science, School of Science and Engineering, Tokyo Denki University
  • BUNDO Yukari
    Division of Science, School of Science and Engineering, Tokyo Denki University
  • OKAMOTO Hiroshi
    Division of Science, School of Science and Engineering, Tokyo Denki University

この論文をさがす

抄録

We have found that the current range is divided into two parts for the appearance of potential oscillation during methanol oxidation on polycrystalline platinum at 315 K when the methanol concentration is between 10 and 0.03 mol dm−3 (M). The current range for oscillation disappearance, named ΔI (od), increases with a decrease in the methanol concentration. At currents below the ΔI (od), the oscillation waveform is always a large-amplitude and long-period (sometimes of the order of an hour) oscillation, named oscillation L. At currents immediately above the ΔI (od), a small-amplitude and short-period oscillation, named oscillation S, is observed for 0.03 to 0.1 M methanol and oscillation L is for 0.3 to 10 M methanol. For the latter methanol concentrations, oscillation S also becomes observed at higher currents. Such a ΔI (od) has not been found for potential oscillations during formic acid or formaldehyde oxidation and, thus, the existence of the ΔI (od) is distinctive to potential oscillations during methanol oxidation.

収録刊行物

  • Electrochemistry

    Electrochemistry 82 (7), 573-577, 2014

    公益社団法人　電気化学会

被引用文献 (1)*注記

もっと見る

参考文献 (35)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ