Electrochemical impedance spectroscopy in the presence of non-linear distortions and non-stationary behaviour Part I: theory and validation

Van Gheem, E; Pintelon, R; Vereecken, J; Schoukens, Joannes; Hubin, A; Verboven, P; Blajiev, O

doi:10.1016/j.electacta.2004.05.039

Electrochemical impedance spectroscopy in the presence of non-linear distortions and non-stationary behaviour Part I: theory and validation

Author:

Van Gheem, E

Pintelon, R ; Vereecken, J ; Schoukens, Joannes ; Hubin, A ; Verboven, P ; Blajiev, O

Keywords:

aluminium, corrosion, electrochemical impedance, broadband periodic random excitation signal, non-linear distortions, metal matrix composites, measurement models, chloride solution, pure aluminum, corrosion behavior, anodized aluminum, sodium-chloride, ion additives, al-alloys, passivation, Science & Technology, Physical Sciences, Electrochemistry, METAL MATRIX COMPOSITES, MEASUREMENT MODELS, CHLORIDE SOLUTION, PURE ALUMINUM, CORROSION BEHAVIOR, ANODIZED ALUMINUM, SODIUM-CHLORIDE, ION ADDITIVES, AL-ALLOYS, PASSIVATION, 02 Physical Sciences, 03 Chemical Sciences, 09 Engineering, Energy, 34 Chemical sciences, 40 Engineering, 51 Physical sciences

Abstract:

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.