Influence of cell configuration on measuring interfacial impedances between a solid electrolyte and an electrode

被引：27

作者：

Kato, T ^{[1
]}

Momma, A ^{[1
]}

Kaga, Y ^{[1
]}

Nagata, S ^{[1
]}

Kasuga, Y ^{[1
]}

Kitase, M ^{[1
]}

机构：

[1] Energy Fundamentals Div, Electrotech Lab, Tsukuba, Ibaraki 3058568, Japan

来源：

SOLID STATE IONICS | 2000年 / 132卷 / 3-4期

关键词：

AC impedance spectroscopy; electrolyte-electrode interface; electrode configuration; estimation of error in measurement;

D O I：

10.1016/S0167-2738(00)00644-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

For AC impedance spectroscopy to measure interfacial impedances between an electrolyte and a working electrode in solid electrolyte cells with three electrodes, the experimental error that is caused by the cell configuration is analyzed using a numerical model. To simulate AC impedance spectra, potential and current distributions in the disk type cells are calculated for various frequencies, and the impedance between the reference electrode and the working electrode is estimated. From the calculation, it is clarified that the difference in the size between the working electrode and the counter electrode can cause the experimental error and the deformation of the impedance spectra from a simple semicircle. The influences of the material properties and the cell configuration on the error and the deformation of the impedance spectrum are discussed. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：287 / 295

页数：9

共 6 条

[1]

Fleig J, 1997, ELEC SOC S, V97, P1374

[2] The influence of current constriction on the impedance of polarizable electrodes - Application to fuel cell electrodes [J].

Fleig, J ;

Maier, J .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (11) :L302-L305

[3]

Kato T, 1997, ELEC SOC S, V97, P1150

[4]

KATO T, 1998, 3 EUR SOL OX FUEL CE, P105

[5] DEPENDENCE OF OBSERVED OVERVOLTAGES ON THE POSITIONING OF THE REFERENCE ELECTRODE ON THE SOLID-ELECTROLYTE [J].

NAGATA, M ;

ITOH, Y ;

IWAHARA, H .

SOLID STATE IONICS, 1994, 67 (3-4) :215-224

[6] Geometric requirements of solid electrolyte cells with a reference electrode [J].

Winkler, J ;

Hendriksen, PV ;

Bonanos, N ;

Mogensen, M .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1998, 145 (04) :1184-1192

← 1 →