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Citation: DAI Li-Zong, XU Yi-Ting, ZHOU Shan-Kang, WU Hui-Huang. Electrochemical and Electrocatalytic Behavior of Poly-2,5-dimethoxyaniline Modified Electrode[J]. Chinese Journal of Applied Chemistry, ;2001, 18(11): 898-902. shu

Electrochemical and Electrocatalytic Behavior of Poly-2,5-dimethoxyaniline Modified Electrode

1.
State Key Laboratory for Physical Chemistry of Solid Surfaces, Chemistry and Chemical Engineering College, Xiamen University, Xiamen 361005

Received Date: 28 February 2001
Available Online: 19 April 2001
Fund Project: 国家教育部博士点专项科研基金资助项目(1999038404) (1999038404)

The platinum particles were electrodeposited on poly(2,5 dimethoxyaniline)(PDM An) membrane modified electrode. The polymer was obtained by emulsion polymerization. The surface configuration and crystal orientation of Pt particles have been investigated by SEM and XRD. The results of the oxidation of isopropanol on platinized PDM An modified electrode show that Pt particles deposited towards preferred-orientation on Pt(200), and, the increase in polymer electroactivity due to proton doping affects the dimension and graininess of deposited Pt particles. The metallized polymer modified electrode is proved to be a "microheterogeneous catalysis system". At the metallized polymer electrode the oxidation of isopropanol mainly took place on Pt particles, and the polymer not only plays a role as a dispersion medium but also affects the catalysis property of Pt particles.
- poly-dimethoxyaniline,
- platinum,
- electrodeposition,
- isopropanol
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