VALIDATION OF EXPERIMENTAL-DATA IN ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY

被引：116

作者：

POPKIROV, GS

SCHINDLER, RN

机构：

[1] Institut für Physikalische Chemie, Universität Kiel, 2300 Kiel

来源：

ELECTROCHIMICA ACTA | 1993年 / 38卷 / 07期

关键词：

IMPEDANCE SPECTROSCOPY; FFT; COATED ELECTRODES; LINEARITY; STABILITY;

D O I：

10.1016/0013-4686(93)87002-U

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Fe, Ag and polymer coated Pt electrodes were investigated using a FFT impedance spectrometer which operates with a sum of properly defined sine waves as a perturbation. Based on an analysis of the discrete response spectra, it is possible to discuss the validation of the measured impedance data. New frequencies are observed in a number of cases, and their distribution gives information about possible causes for impedance Spectrum distortion, eg about a poor linearity and/or instability of the electrode interphase during the measurement. In some cases it is possible to correct the measured data in order to obtain valid impedance spectra.

引用

页码：861 / 867

页数：7

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