Characterisation of chloride and bromide specific adsorption process on silver single crystal surfaces by impedance spectroscopy Part I. An extended model to obtain the charge density from impedance spectra applied to Ag(111) at low concentrations of halides

被引：28

作者：

Beltramo, G ^{[1
]}

Santos, E ^{[1
]}

机构：

[1] Univ Nacl Cordoba, Fac Matemat Astron & Fis, RA-5000 Cordoba, Argentina

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2003年 / 556卷

关键词：

specific adsorption; silver single crystal electrodes; impedance; capacitance;

D O I：

10.1016/S0022-0728(03)00338-3

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The adsorption processes of chloride and bromide are investigated by means of impedance spectroscopy. A physical model is proposed to obtain different kinetic and mass transport parameters at low concentrations of halides. Differential capacitance curves are determined by employing different equivalent circuits depending on the concentration of halides. The excess surface charge densities were calculated by integration of the total capacitance obtained from impedance spectroscopy. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：127 / 136

页数：10

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