Impedance spectroscopy at interfaces of metals and aqueous solutions - Surface roughness, CPE and related issues

被引:247
作者
Pajkossy, T [1 ]
机构
[1] Hungarian Acad Sci, Chem Res Ctr, Inst Mat & Environm Chem, H-1525 Budapest, Hungary
关键词
interfacial impedance; surface roughness; capacitance dispersion; constant phase element; non-Faradaic process; adsorption process; porous electrode; fractal;
D O I
10.1016/j.ssi.2004.06.023
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The interfacial impedance of solid electrodes deviates from that of an ideal capacitor even in the complete absence of Faradaic reactions; the deviation is usually larger on rough electrodes than on smooth ones. The origin of this deviation is discussed; the roles of atomic scale roughness and of the adsorption processes are analyzed. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:1997 / 2003
页数:7
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