NUMERICAL-SIMULATION OF KINETICALLY CONTROLLED ELECTROSORPTION PROCESSES UNDER CYCLIC VOLTAMMETRIC CONDITIONS

被引：19

作者：

SZULBORSKA, A

BARANSKI, A

机构：

[1] Department of Chemistry, University of Saskatchewan, Saskatoon

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1994年 / 377卷 / 1-2期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/0022-0728(94)03437-0

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The computations described in the paper are based on the Frumkin adsorption isotherm. Variation of the electrosorption valency with potential is taken into account. The rate-determining step can be either diffusion or interfacial kinetics. The kinetics of charge transfer associated with the formation of a chemical bond between an adsorbate and an electrode is described in terms of the Butler-Volmer equation. The effect of lateral interactions between adsorbed molecules and the activated complex is also considered. The presented dependences of the peak width and peak potential on the electrode coverage and the sweep rate allow the determination of various kinetic and thermodynamic parameters of the adsorption process. Computations were carried out for both linear and spherical symmetry of diffusion.

引用

页码：23 / 31

页数：9

共 17 条

[1] ULTRAMICROELECTRODES - CYCLIC VOLTAMMETRY ABOVE ONE MILLION V-S-1 [J].