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.
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页码：3441 / 3449
页数：9
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