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

Research output: Contribution to journalArticle

178 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)1997-2003
Number of pages7
JournalSolid State Ionics
Volume176
Issue number25-28
DOIs
Publication statusPublished - Aug 15 2005

Fingerprint

surface roughness
Surface roughness
Metals
solid electrodes
Spectroscopy
impedance
aqueous solutions
deviation
Electrodes
metals
spectroscopy
capacitors
Capacitors
roughness
Adsorption
adsorption
electrodes

Keywords

  • Adsorption process
  • Capacitance dispersion
  • Constant phase element
  • Fractal
  • Interfacial impedance
  • Non-Faradaic process
  • Porous electrode
  • Surface roughness

ASJC Scopus subject areas

  • Electrochemistry
  • Physical and Theoretical Chemistry
  • Energy Engineering and Power Technology
  • Materials Chemistry
  • Condensed Matter Physics

Cite this

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

In: Solid State Ionics, Vol. 176, No. 25-28, 15.08.2005, p. 1997-2003.

Research output: Contribution to journalArticle

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