IMPEDANCE SPECTROSCOPY STUDIES OF ELECTRODE ELECTROLYTE SYSTEMS

被引：6

作者：

VELLE, OJ

NORBY, T

机构：

[1] Center for Materials Research, Department of Chemistry, University of Oslo, N-0371 Oslo 3

来源：

SOLID STATE IONICS | 1992年 / 52卷 / 1-3期

关键词：

D O I：

10.1016/0167-2738(92)90094-6

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：

Impedance spectra have been recorded for three different electrode systems (Pt, Pt/SrCeO3:Yb and Pt/CaTiO3) with ZrO2:8Y2O3 as a common electrolyte. The systems have been investigated as a function of temperature (650-875-degrees-C) and oxygen partial pressure (10(-5)-1 atm). The measured impedance spectra have been deconvoluted by means of an NLLS program and are well described by a Randles type equivalent circuit, in which the electrode resistance is the sum of a charge transfer resistance and a diffusion resistance. The cathodic reaction is apparently limiting in all three systems. In all three systems the presence of a PtOx compound is suggested.

引用

页码：93 / 97

页数：5

共 10 条

[1] BERRY RJ, 1982, SURF SCI, V120, pL409
[2] A NONLINEAR LEAST-SQUARES FIT PROCEDURE FOR ANALYSIS OF IMMITTANCE DATA OF ELECTROCHEMICAL SYSTEMS
BOUKAMP, BA
[J]. SOLID STATE IONICS, 1986, 20 (01) : 31 - 44
[3] A PACKAGE FOR IMPEDANCE ADMITTANCE DATA-ANALYSIS
BOUKAMP, BA
[J]. SOLID STATE IONICS, 1986, 18-9 (pt 1) : 136 - 140
[4] DIFFUSION-LIMITED CHARGE TRANSPORT AT PLATINUM-ELECTRODES ON DOPED CEO2
BRAUNSHTEIN, D
TANNHAUSER, DS
RIESS, I
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1981, 128 (01) : 82 - 89
[5] EMF METHOD DETERMINATION OF CONDUCTIVITY CONTRIBUTIONS FROM PROTONS AND OTHER FOREIGN IONS IN OXIDES
NORBY, T
[J]. SOLID STATE IONICS, 1988, 28 : 1586 - 1591
[6] OSBORG PA, 1991, THESIS U OSLO
[7] THE ROLE OF PTOX IN THE ISOTHERMAL RATE OSCILLATIONS OF ETHYLENE OXIDATION ON PLATINUM
VAYENAS, CG
GEORGAKIS, C
MICHAELS, J
TORMO, J
[J]. JOURNAL OF CATALYSIS, 1981, 67 (02) : 348 - 361
[8] THE ELECTRODE SYSTEM O2/PT//ZRO2-8Y2O3 INVESTIGATED BY IMPEDANCE SPECTROSCOPY
VELLE, OJ
NORBY, T
KOFSTAD, P
[J]. SOLID STATE IONICS, 1991, 47 (1-2) : 161 - 167
[9] VELLE OJ, 1991, THESIS U OSLO
[10] CATHODIC AND ANODIC POLARIZATION PHENOMENA AT PLATINUM-ELECTRODES WITH DOPED CEO2 AS ELECTROLYTE .2. TRANSIENT OVERPOTENTIAL AND AC IMPEDANCE
WANG, DY
NOWICK, AS
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1979, 126 (07) : 1166 - 1172

← 1 →