The electrochemical response of highly boron-doped conductive diamond electrodes to Ce3+ ions in aqueous solution

被引：59

作者：

Maeda, Y

Sato, K

Ramaraj, R

Rao, TN

Tryk, DA

Fujishima, A

机构：

[1] Univ Tokyo, Grad Sch Engn, Dept Appl Chem, Bunkyo Ku, Tokyo 1138656, Japan

[2] Toyohashi Univ Technol, Dept Mat Sci, Toyohashi, Aichi 4418580, Japan

来源：

ELECTROCHIMICA ACTA | 1999年 / 44卷 / 20期

基金：

日本学术振兴会;

关键词：

boron-doped diamond electrode; cerium(III) salts; diamond electrode;

D O I：

10.1016/S0013-4686(99)00109-7

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electrochemical response of highly boron-doped conductive diamond electrodes to Ce3+ ions in aqueous sulfuric acid, nitric acid and perchloric acid solutions was studied mainly by use of cyclic voltammetry, The diamond electrode shows a well-defined voltammogram indicating quasi-reversible behavior for the Ce3+/Ce4+ redox couple in aqueous acidic solution. The equilibrium redox potential of the Ce3+/4+ couple was derived from the cyclic voltammograms. The diffusion coefficients for Ce3+ were evaluated from the dependence of the cyclic voltammograms on the potential sweep rate. The kinetic parameters for the anodic oxidation of Ce3+ were measured at the diamond electrode from the relation between the overpotential and the logarithm of current, (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：3441 / 3449

页数：9

共 27 条

[1] CYCLIC VOLTAMMETRIC STUDIES OF CHARGE-TRANSFER REACTIONS AT HIGHLY BORON-DOPED POLYCRYSTALLINE DIAMOND THIN-FILM ELECTRODES [J].