Periodic current signals of very low frequency and amplitude for real surface area measurements .2. Application to nickel electrodes

被引：5

作者：

Marozzi, CA ^{[1
]}

Chialvo, AC ^{[1
]}

机构：

[1] UNL,FAC INGN QUIM,PROGRAMA ELECTROQUIM APLICADA & INGN ELECTROQUIM,RA-3000 SANTA FE,ARGENTINA

来源：

ELECTROCHIMICA ACTA | 1996年 / 41卷 / 15期

关键词：

real surface area; polarisation resistance; interfacial capacitance; periodic currents signals;

D O I：

10.1016/0013-4686(96)00013-8

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The present work deals with the application of the method described in Part I for the measurement of the real surface area of electrodes using periodic current signals of very low frequency and amplitude. It was applied to rough nickel electrodes in aqueous solutions of 10(-2) M quinhydrone and 0.5 M K2SO4, buffered with acetic acid and sodium acetate. A specific interfacial capacity of 20.9 mu F cm(-2) and polarization resistance of 33.8 k Omega cm(2) have been determined. The accuracy of the proposed method has also been determined through the application of different current signals and different wave parameters. Copyright (C) 1996 Elsevier Science Ltd

引用

页码：2361 / 2368

页数：8

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