物理化学学报 >> 1994, Vol. 10 >> Issue (09): 813-817.doi: 10.3866/PKU.WHXB19940909

研究论文 上一篇    下一篇

电催化甲酸氧化中钯微粒与聚苯胺的相互作用

钟起玲, 吴文, 李五湖, 田中群   

  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:1993-07-08 修回日期:1994-02-04 发布日期:1994-09-15
  • 通讯作者: 田中群

Interaction between Palladium Microparticles and Polyaniline in Electrocatalytic Process for Oxidation of Formic Acid

Zhong Qi-Ling, Wu Wen, Li Wu-Hu, Tian Zhong-Qun   

  1. Chemistry,Department,Jiangxi Normal University,Nanchang 330027|State Key Laboratory for Physical Chemistry of Solid Surface,Department of Chemistry,Xiamen University,Xiamen 361005
  • Received:1993-07-08 Revised:1994-02-04 Published:1994-09-15
  • Contact: Tian Zhong-Qun

摘要:

采用电化学、XPS和拉曼光谱研究或微粒修饰聚苯胺(PAN(Pd))电极对甲酸氧化的电催化行为.由于钯与PAN的相互作用,钯微粒在所研究的电位区间可稳定地固定于PAN中,且甲酸在钯上的氧化明显地抑制了PAN的氧化降解,使PAN(Pd))电极电催化甲酸氧化反应具有高的稳定性和活性.

关键词: 电催化, 聚苯胺, 钯微粒, 甲酸

Abstract:

Electrochemical oxidation of formic acid at polyaniline films modified by palladium microparticles (PAN(Pd)) has been studied using electrochemical techniques, XPS and Raman spectroscopy. It has been shown that because of the interaction between Pd and PAN, Pd microparticles can be stablized in the PAN films in the potential region from -0.2V to +0.9V, and the oxidation of formic acid can prevent the degradation of the PAN, resulting in high stability of the PAN(Pd) electrode and its electrocatalytic activity for oxidation of formic acid.

Key words: Electrocatalysis, Polyaniline, Palladium microparticles, Formic acid