Using the Distribution of Relaxation Times for analyzing the Kramers-Kronig Relations in Electrochemical Impedance Spectroscopy

Autor: Zeimetz, Bernhard, Flura, Aurelien, Grenier, Jean-Claude, Mauvy, Fabrice
Přispěvatelé: Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB), Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), ZEIMETZ, Bernhard
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Popis: We propose to verify the Kramers-Kronig Relations (KKR) through comparison of two versions of the Distribution of Relaxation Times (DRT), calculated from the real and imaginary part of the impedance. When checking the integrity of impedance spectroscopy data, this method is useful to interpret correctly results when a direct calculation of the KKR integrals shows a deviation from measured data. Our method can distinguish cases (i) where a deviation from the KKR indicates genuine physical problems during the measurement from (ii) a deviation arising when the frequency range accessible by the measurement is insufficiently large.
Databáze: OpenAIRE