Jump to main content
Jump to site search

Issue 36, 2017
Previous Article Next Article

Analysis of Warburg's impedance and its equivalent electric circuits

Author affiliations

Abstract

The derivation of Warburg's impedance is revisited and critically analyzed. We show that the original derivation where the electric current is assumed to be due only to the diffusion of ions, as proposed by Warburg, raises some fundamental questions. The roles of the drift current, in the absence of which the equilibrium is never reached in the dc case, and of the displacement current, which is important even in the low frequency region where the Warburg's impedance appears, are discussed. Finally, the utility of models based on equivalent electric circuits, ladder networks, or transmission lines in the analysis of impedance spectroscopy data is investigated.

Graphical abstract: Analysis of Warburg's impedance and its equivalent electric circuits

Back to tab navigation

Publication details

The article was received on 15 Jun 2017, accepted on 29 Aug 2017 and first published on 29 Aug 2017


Article type: Paper
DOI: 10.1039/C7CP04032F
Citation: Phys. Chem. Chem. Phys., 2017,19, 24934-24944
  •   Request permissions

    Analysis of Warburg's impedance and its equivalent electric circuits

    G. Barbero and I. Lelidis, Phys. Chem. Chem. Phys., 2017, 19, 24934
    DOI: 10.1039/C7CP04032F

Search articles by author

Spotlight

Advertisements