Kinetic Studies of Electrochemical Oxidation of 1,3-Benzenedithiol

Abstract

Abstract: The electrochemical oxidation of 1, 3-benzenedithiol was investigated in a 0. 100 mol/L tetrabutylammonium perchlorate/acetonitrile electrolyte. The electrochemical techniques used were potential sweep, bulk electrolysis, rotating disc and the potential step method. The combination of the techniques yielded the number of electrons transferred per molecule, the reaction order, the transfer coefficient, the diffusion coefficient and concentration of dithiol anions, the standard heterogeneous rate constant as well as the formal potential and equilibrium constant of the preceeding dissociation reaction. This paper also illustrates the methods for studying the electrode kinetics of reactions which (a) involve a chemical reaction preceeding the electron-transfer process, (b) have insoluble polymer products, and (c) are totally irreversible.

Key words: Electrochemical oxidation, 1, 3-Benzenedithiol, Electrode kinetics, Organ-ic disulfide

XUE Kuan-hong, ZHOU Yi-ming, YANG Hui, H. S. Lee, X. Q. Yang, J. McBreen, T. A, Skotheim. Kinetic Studies of Electrochemical Oxidation of 1,3-Benzenedithiol[J]. Chemical Research in Chinese Universities, 1993, 9(3): 231-239.

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Kinetic Studies of Electrochemical Oxidation of 1,3-Benzenedithiol

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