Current oscillations and a negative impedance observed during copper and tin codeposition from solutions involving Laprol 2402C as a surface-active substance

被引：18

作者：

Survila, A ^{[1
]}

Mockus, Z ^{[1
]}

机构：

[1] Inst Chem, LT-2600 Vilnius, Lithuania

来源：

ELECTROCHIMICA ACTA | 1999年 / 44卷 / 11期

关键词：

oscillations; negative impedance; copper; tin; codeposition; surface-active substance;

D O I：

10.1016/S0013-4686(98)00280-1

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Experimental data on current oscillations observed during copper and tin codeposition from solutions involving Laprol 2402C as a surface-active substance, confirm an idea of the usefulness of impedance spectroscopy data for predicting the stability features of electrochemical systems. An analysis of the impedance data obtained for the negative slope region of the voltammogram allows to establish the value of the external resistance at which oscillations are generated and to estimate frequencies of these oscillations, No hidden negative impedance and, therefore, no potential oscillations at controlled current were found. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：1707 / 1712

页数：6

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