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

作　　者：JIANG Jun-guang ZHANG Hong-qiang LIN Xiang-qin 

机构地区：[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

出　　处：《Chemical Research in Chinese Universities》2001年第1期26-30,共5页高等学校化学研究(英文版)

基　　金：SupportedbytheNationalNaturalScienceFoundationofChina(No .2 96 75 0 2 4)

摘　　要：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.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.

关 键 词：FTIR spectroelectrochemistry Polythiophene film MICROSCOPY MICROELECTRODE 

分 类 号：O657.1[理学—分析化学]