Calculation of cyclic voltammetric responses for the reductive formation of catalyst-substrate adducts on electrode surfaces

Electrocatalysts based on monolayers of transition-metal complexes attached to electrode surfaces frequently follow mechanisms in which a chemical step is interposed between the first and subsequent electron-transfer steps. The cyclic voltammetric responses to be anticipated for such systems were calculated using finite difference procedures to solve the relevant differential equation. The calculated variation of the peak currents and peak potentials with the kinetic parameters governing the three steps in the mechanistic scheme are presented in graphical form. Application of the results to a specific experimental system, the catalysis of the electroreduction of O_2 by a macrocyclic complex of Co^(III) adsorbed on graphite electrodes, produced reasonable agreement between calculated and observed cyclic voltammograms

Electrochcmical Reaction of RedoxProteins Speeded up by the Dye Modified Electrodes

评述了染料修饰电极加速氧化还原蛋白质的电子传递反应．讨论了染料修饰电极的修饰方法和性质，简评了伏安法、流动分析、光谱电化学法等几种不同研究方法的应用．提出了可逆电催化反应的机理，并将数值计算与实验结果进行比较、验证．引用了４７篇文献．The electron transfer reaction of redox proteins faciliated by dye medifiedelectrede was reviewed in this paper.The medification metheds and the properties of dye modifiedelectrede were discussed. Several different studying metheds,such as voltammetry,flow analysis andspectroelectrochemical methed,were reviewed.Areversible electrocatalytic reaction mechanism wasproposed and verified by comparing the digital calculation results with the experimental results.47references were cited.作者联系地址：中国科学院长春应用化学研究所电分析化学开放实验室Author's Address: Laboratory of Electroanalytical Chemistry,Changchun Institute of Applied Chemistry ,Chinese Academy of Sciences ,Changchun 1 3002