Electrochemical impedance spectroscopy in the presence of non-linear distortions and non-stationary behaviour
Electrochemical impedance spectroscopy in the presence of non-linear distortions and non-stationary behaviour
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DOI：
10.1016/j.electacta.2004.05.039
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发表时间：
2004-10
影响因子：
6.6
通讯作者：
E. V. Gheem;R. Pintelon;A. Hubin;J. Schoukens;P. Verboven;O. Blajiev;J. Vereecken
中科院分区：
文献类型：
--
作者：
E. V. Gheem;R. Pintelon;A. Hubin;J. Schoukens;P. Verboven;O. Blajiev;J. Vereecken
为了研究非线性和非平稳的电化学体系，这两篇系列论文描述了一种新的电化学阻抗谱(EIS)测量方法，它使用专门设计的宽带激励信号。在一次实验中，同时测量了阻抗、干扰噪声的电平、非线性失真的电平和非平稳行为的电平。论文的第一部分提出了测量策略，并在线性电路和非线性电路上进行了验证。在第二部分中，所描述的测量策略被应用于铝(99.5wt.%)在充气氯化钠溶液中的点蚀。
In order to investigate non-linear and non-stationary electrochemical systems, this series of two papers describes a new measurement method for electrochemical impedance spectroscopy (EIS), using specially designed broadband excitation signals. During one single experiment, the impedance, the level of the disturbing noise, the level of the non-linear distortions, and the level of the non-stationary behaviour are simultaneously measured. Part I of the paper presents the measurement strategy and validates it on a linear and a non-linear electrical circuit. In part II the described measurement strategy is applied to the pitting corrosion of aluminium (99.5 wt.%) immersed in an aerated sodium chloride solution.