Fundamental Theory and Analysis of Electrochemical Impedance Spectroscopy

摘要

Electrochemical impedance spectroscopy (EIS) is a powerful tool for analyzing electrode reaction mechanisms. This review begins with the history of EIS, then defines electrochemical impedance and introduces the general concept of transfer functions, and the method of measuring electrochemical impedance using a transfer function analyzer. Methods, of analyzing impedance spectra using electrical equivalent circuits and the kinetic theory of electrochemical reactions are described. Finally, the future scope of EIS is discussed briefly.