物理化学学报 >> 1996, Vol. 12 >> Issue (04): 346-352.doi: 10.3866/PKU.WHXB19960412

研究简报 上一篇    下一篇

甲酸在钯微粒修饰聚苯胺电极上氧化的协同效应研究

钟起玲,熊丽华,钟志京,李五湖   

  1. 江西师范大学化学系，南昌 330027|厦门大学固体表面物理化学国家重点实验室，化学系，厦门 361005
  • 收稿日期:1995-06-05 修回日期:1995-08-22 发布日期:1996-04-15
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Synergistic Effect of the Oxidation of Formic Acid at Polyaniline Electrodes Modified by Palladium Microparticles

Zhong Qi-Ling,Xiong Li-Hua,Zhong Zhi-Jing,Li Wu-Hu   

  1. Department of Chemistry,Jiangxi Normal University,Nanchang 330027|The State Key Laboratory for Physical Chemistry of Solid Surfacesy,Xiamen University,Xiamen 361005
  • Received:1995-06-05 Revised:1995-08-22 Published:1996-04-15
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关键词: 甲酸, 钯微粒, 聚苯胺, 协同效应

Abstract:

Electrochemical oxidation of formic acid on PAN(Pd) electrode has been studied using conventional electrochemical techniques and the electrochemical in-situ FTIR. The process of electrochemical oxidation of PAN(Pd) electorde has been put forward. The kinetic parameters of different thickness of PAN film such as diffusion coefficient (D0) and reaction rate constant(k0) have been calculated. Furthermore, the causes of the difference between PAN(Pd) and pure Pd(or Pt) electrodes as well as the high electrocatalytic activation of PAN(Pd) electrode for oxidation of fomic acid have also been discussed. The high catalytic activation of PAN(Pd) electrode for oxidation of formic acid probably comes from the synergistic effect of the subcatalytic interaction of PAN and the catalytic interaction of the palladium microparticles.

Key words: Formic acid, Palladium microparticle, Payaniline;Synergistic effect