IMPEDANCE MEASUREMENT ERRORS DUE TO NONLINEARITIES .1. LOW-FREQUENCY IMPEDANCE MEASUREMENTS

被引：31
|
作者：
DIARD, JP
LEGORREC, B
MONTELLA, C
机构：
[1] Ecole Nationale Supérieure d'Electrochimie et d'Electrométallurgie de Grenoble, Centre de Recherche en Electrochimie Minérale et en Génie des Procédés, U.A. CNRS. 1212, 38402 Saint Martin d'Hères
来源：
ELECTROCHIMICA ACTA | 1994年 / 39卷 / 04期
关键词：
IMPEDANCE MEASUREMENT; NONLINEARITIES; REDOX REACTIONS; FE(CN)6(3-)/FE(CN)6(4-) SYSTEM; DISSOLUTION-PASSIVATION REACTION;
D O I：
10.1016/0013-4686(94)80098-7
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The effects of electrochemical systems non-linearities on impedance measurements with a Frequency Response Analyser have been investigated in low frequency domain from both a theoretical and experimental viewpoint. A theoretical expression for the polarization resistance measurement error has been found for ''non-blocking'' electrodes and the measurement validity conditions have been examined. The theoretical approach has been applied to redox reactions and to an adsorbed phase reaction which is a dissolution-passivation process of a metal. The theoretical results were verified with impedance measurements on a platinum rotating disk electrode in a Fe(CN)63-/Fe(CN)64- redox solution.
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页码：539 / 546
页数：8
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