A NEW APPROACH TO THE PROBLEM OF GOOD AND BAD IMPEDANCE DATA IN ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY

被引：40

作者：

POPKIROV, GS

SCHINDLER, RN

机构：

[1] Institut für Physikalische Chemie, Universität Kiel, 24098 Kiel

来源：

ELECTROCHIMICA ACTA | 1994年 / 39卷 / 13期

关键词：

ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY; FFT IMPEDANCE ANALYSIS; DATA VALIDATION;

D O I：

10.1016/0013-4686(94)85083-6

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Time resolved impedance spectra measurements were performed on potential-stepped Ag electrodes using a FFT impedance spectrometer which operates with a sum of properly defined sine waves as a perturbation. New frequencies were observed in the current response spectra in cases when current relaxation had not decayed before the perturbation was applied. The analysis of the amplitude spectra of the response current allows one to determine whether the obtained impedance spectra were ''good'' or ''bad''. Possibilities are outlined for the correction of the measured current data in order to obtain valid impedance spectra.

引用

页码：2025 / 2030

页数：6

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