Influence of the composition on the copper diffusion in copper sulfides - Study by impedance spectroscopy

被引：15

作者：

Cassaignon, S

Sanchez, S

Guillemoles, JF

Vedel, J

Meier, HG

机构：

[1] ENSCP, Lab Electrochim & Chim Analyt, UMR 7575, F-75231 Paris 05, France

[2] Pontificia Univ Catolica Valparaiso, Fac Ciencias Basicas & Matemat, Inst Quim, Lab Electrochim, Valparaiso, Chile

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1999年 / 146卷 / 12期

关键词：

D O I：

10.1149/1.1392691

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Diffusion of copper in copper sulfides, Cu2-xS is studied as a function of x by means of electrochemical impedance spectroscopy (EIS) at room temperature. Copper sulfide compositions were determined from electromotive force determinations in the Cu\Cu(2+)aq\Cu2-xS galvanic cell. The same cell was used to change the x value by imposing a potential different of the equilibrium one. Experimental EIS determinations relate diffusion coefficients and concentrations of diffusing species. The experimental data are discussed accordingly. (C) 1939 The Electrochemical Society. S0013-4651(99)01-087-3. All rights reserved.

引用

页码：4666 / 4671

页数：6

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