Journal
SOLID STATE IONICS
Volume 176, Issue 25-28, Pages 1997-2003Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ssi.2004.06.023
Keywords
interfacial impedance; surface roughness; capacitance dispersion; constant phase element; non-Faradaic process; adsorption process; porous electrode; fractal
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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.
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