Determination of kinetic parameters for borohydride oxidation on a rotating Au disk electrode

被引：113

作者：

Cheng, H ^{[1
]}

Scott, K ^{[1
]}

机构：

[1] Newcastle Univ, Sch Chem Engn & Adv Mat, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

来源：

ELECTROCHIMICA ACTA | 2006年 / 51卷 / 17期

基金：

英国工程与自然科学研究理事会;

关键词：

rotating disk electrode; gold; kinetic parameters; direct borohydride fuel cell; borohydride oxidation;

D O I：

10.1016/j.electacta.2005.09.038

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Borohydride oxidation has been investigated using a rotating disk electrode technique. The parameters, such as apparent rate constant, Tafel slope, Levich slope, number of electrons exchanged and reaction order, have been determined. The borohydride ion is oxidised on the gold electrode with an electrochemical rate constant of around 1 cm s(-1) at intermediate potentials where side reactions had less effect. Influences of temperature, concentrations of borohydride and supporting electrolyte (NaOH) on the parameters were evaluated. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：3429 / 3433

页数：5

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