REEXAMINATION OF THE VALIDITY-CONDITIONS OF THE REDOX SYSTEM IMPEDANCE MEASUREMENTS .1. REVERSIBLE ELECTRON-TRANSFER

被引：12

作者：

DIARD, JP ^{[1
]}

LEGORREC, B ^{[1
]}

MONTELLA, C ^{[1
]}

机构：

[1] ECOLE NATL SUPER ELECTROCHIM & ELECTROMET GRENOBLE,F-38402 ST MARTIN DHERES,FRANCE

来源：

JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICO-CHIMIE BIOLOGIQUE | 1992年 / 89卷 / 11-12期

关键词：

D O I：

10.1051/jcp/1992892153

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Validity conditions of impedance measurements for a nernstian redox system have been studied both theoritically and experimentally. The theoretical predictions give a better estimate of the impedance measurement error than the results previously given by Kooyman et al.. The impedance measurement error depends on the electrode potential, the sinusoidal voltage amplitude, the electron number and the temperature. It doesn't depend on the signal frequency. The experimental study of Fe(CN)63-/Fe(CN)64- redox system on a rotating disk electrode is given as an example. There is a good agreement between the experimental results and the theoretical predictions in the low frequency range where the redox system is nearly a nernstian system.

引用

页码：2153 / 2167

页数：15