In-situ Microscopic FT-IR Spectroelectrochemical Investigation of Polythiophene Film Modified Electrode

Chemical Research in Chinese Universities ›› 2001, Vol. 17 ›› Issue (1): 26-30.

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In-situ Microscopic FT-IR Spectroelectrochemical Investigation of Polythiophene Film Modified Electrode

JIANG Jun-guang¹, ZHANG Hong-qiang¹, LIN Xiang-qin²

1. Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China;
2. Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China

Received:1999-11-11 Online:2001-01-24 Published:2011-08-04
Supported by:
Supported by the National Natural Science Foundation of China(No.29675024).

Abstract

Abstract: A polythiophene film was electrochemically deposited on a Pt micro-plate electrode and investigated by cyclic voltammetry and in-situ reflection microscopic FTIR spectroscopy. The FTIR analysis showed that the electropolymerization of thiophene on the Pt surface was affected by the surface adsorption processes of thiophene molecules. Two adsorption modes were identified. Two structure models of the polythiophene chain were observed simultaneously. It was proposed that the good conductibility of the polythiophene film was originated from a co-vibratory equilibrium of the link part of model Ⅰ and model Ⅱ.

Key words: FTIR spectroelectrochemistry, Polythiophene film, Microscopy, Microelect rode

JIANG Jun-guang, ZHANG Hong-qiang, LIN Xiang-qin. In-situ Microscopic FT-IR Spectroelectrochemical Investigation of Polythiophene Film Modified Electrode[J]. Chemical Research in Chinese Universities, 2001, 17(1): 26-30.

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In-situ Microscopic FT-IR Spectroelectrochemical Investigation of Polythiophene Film Modified Electrode

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