Porous electrodes in the presence of a concentration gradient

被引：71

作者：

Lasia, A

机构：

[1] Département de Chimie, Université de Sherbrooke, Sherbrooke, Que.

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1997年 / 428卷 / 1-2期

关键词：

porous electrodes; concentration gradient; numerical model; dc behavior; ac behavior; hydrogen evolution reaction;

D O I：

10.1016/S0022-0728(96)05071-1

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Solutions for the flooded porous electrodes in the presence of a concentration gradient are presented. They are valid for quasi-reversible reactions in the conditions of finite pore length. Potential and concentration profiles can be calculated using the developed method. In addition, a.c. impedance behavior of these electrodes is presented. Transitions from concentration gradient to potential gradient limitations are discussed. The method is applied to the hydrogen evolution on porous electrodes. (C) 1997 Elsevier Science S.A.

引用

页码：155 / 164

页数：10

共 17 条

[1]

Austin L. G., 1964, ELECTROCHIM ACTA, V9, P1469, DOI [10.1016/0013-4686(64)85028-3, DOI 10.1016/0013-4686(64)85028-3]

[2] POTENTIAL AND CURRENT DISTRIBUTION IN POROUS-ELECTRODES UNDER CHARGE-TRANSFER KINETIC CONTROL [J].