Interpretation of the Gerischer impedance in solid state ionics

Research output: Contribution to journalArticleAcademicpeer-review

121 Citations (Scopus)

Abstract

The Gerischer impedance in its most elementary form, ZG(ω)=Z0(k+jω)−1/2, has been observed in the frequency response of mixed conducting solid electrolyte systems. This simple transfer function can be derived directly from Fick's second law by including a reaction term. The Gerischer impedance was observed in the electrode dispersion of heavily Tb-doped yttria-stabilised zirconia (YSZ) ceramics. The mixed conducting samples were provided with ionically blocking gold electrodes. The occurrence of a Gerischer impedance in the Tb–YSZ system is tentatively modelled with the formation of immobile complexes of oxygen vacancies and trivalent cations. The presented results indicate that for mixed conducting materials it is not allowed to represent the electronic and ionic conduction path as independent components in an equivalent circuit.
Original languageUndefined
Pages (from-to)29-33
Number of pages5
JournalSolid state ionics
Volume157
Issue number1-4
DOIs
Publication statusPublished - 2003

Keywords

  • IR-72224
  • METIS-215264

Cite this

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title = "Interpretation of the Gerischer impedance in solid state ionics",
abstract = "The Gerischer impedance in its most elementary form, ZG(ω)=Z0(k+jω)−1/2, has been observed in the frequency response of mixed conducting solid electrolyte systems. This simple transfer function can be derived directly from Fick's second law by including a reaction term. The Gerischer impedance was observed in the electrode dispersion of heavily Tb-doped yttria-stabilised zirconia (YSZ) ceramics. The mixed conducting samples were provided with ionically blocking gold electrodes. The occurrence of a Gerischer impedance in the Tb–YSZ system is tentatively modelled with the formation of immobile complexes of oxygen vacancies and trivalent cations. The presented results indicate that for mixed conducting materials it is not allowed to represent the electronic and ionic conduction path as independent components in an equivalent circuit.",
keywords = "IR-72224, METIS-215264",
author = "Boukamp, {Bernard A.} and Bouwmeester, {Henricus J.M.}",
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language = "Undefined",
volume = "157",
pages = "29--33",
journal = "Solid state ionics",
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Interpretation of the Gerischer impedance in solid state ionics. / Boukamp, Bernard A.; Bouwmeester, Henricus J.M.

In: Solid state ionics, Vol. 157, No. 1-4, 2003, p. 29-33.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Interpretation of the Gerischer impedance in solid state ionics

AU - Boukamp, Bernard A.

AU - Bouwmeester, Henricus J.M.

PY - 2003

Y1 - 2003

N2 - The Gerischer impedance in its most elementary form, ZG(ω)=Z0(k+jω)−1/2, has been observed in the frequency response of mixed conducting solid electrolyte systems. This simple transfer function can be derived directly from Fick's second law by including a reaction term. The Gerischer impedance was observed in the electrode dispersion of heavily Tb-doped yttria-stabilised zirconia (YSZ) ceramics. The mixed conducting samples were provided with ionically blocking gold electrodes. The occurrence of a Gerischer impedance in the Tb–YSZ system is tentatively modelled with the formation of immobile complexes of oxygen vacancies and trivalent cations. The presented results indicate that for mixed conducting materials it is not allowed to represent the electronic and ionic conduction path as independent components in an equivalent circuit.

AB - The Gerischer impedance in its most elementary form, ZG(ω)=Z0(k+jω)−1/2, has been observed in the frequency response of mixed conducting solid electrolyte systems. This simple transfer function can be derived directly from Fick's second law by including a reaction term. The Gerischer impedance was observed in the electrode dispersion of heavily Tb-doped yttria-stabilised zirconia (YSZ) ceramics. The mixed conducting samples were provided with ionically blocking gold electrodes. The occurrence of a Gerischer impedance in the Tb–YSZ system is tentatively modelled with the formation of immobile complexes of oxygen vacancies and trivalent cations. The presented results indicate that for mixed conducting materials it is not allowed to represent the electronic and ionic conduction path as independent components in an equivalent circuit.

KW - IR-72224

KW - METIS-215264

U2 - 10.1016/S0167-2738(02)00185-6

DO - 10.1016/S0167-2738(02)00185-6

M3 - Article

VL - 157

SP - 29

EP - 33

JO - Solid state ionics

JF - Solid state ionics

SN - 0167-2738

IS - 1-4

ER -