Impedance of rough capacitive electrodes: The role of surface disorder

Research output: Contribution to journalArticle

116 Citations (Scopus)

Abstract

The interfacial impedance of solid electrodes in the absence of Faradaic reactions usually deviates from purely capacitive behaviour; this effect is enhanced on rough electrodes. We present a qualitative experiment showing that capacitance dispersion on solid electrodes is due to surface disorder (i.e. heterogeneities on the atomic scale) rather than roughness (i.e. geometric irregularities much larger than those on the atomic scale).

Original languageEnglish
Pages (from-to)139-142
Number of pages4
JournalJournal of Electroanalytical Chemistry
Volume448
Issue number1
Publication statusPublished - May 5 1998

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Electrodes
Capacitance
Surface roughness
Experiments

Keywords

  • Atomic scale
  • Capacitance dispersion
  • Heterogeneity
  • Interfacial impedance
  • Solid electrodes

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Analytical Chemistry
  • Electrochemistry

Cite this

Impedance of rough capacitive electrodes : The role of surface disorder. / Kerner, Z.; Pajkossy, T.

In: Journal of Electroanalytical Chemistry, Vol. 448, No. 1, 05.05.1998, p. 139-142.

Research output: Contribution to journalArticle

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