1University of Education Ludwigsburg, Department of Chemistry, Ludwigsburg, Germany
World Journal of Chemical Education.
2021,
Vol. 9 No. 1, 14-21
DOI: 10.12691/wjce-9-1-3
Copyright © 2020 Science and Education PublishingCite this paper: Achim Habekost. Fundamentals and Applications of Electrochemical Impedance Spectroscopy - A Didactic Perspective.
World Journal of Chemical Education. 2021; 9(1):14-21. doi: 10.12691/wjce-9-1-3.
Correspondence to: Achim Habekost, University of Education Ludwigsburg, Department of Chemistry, Ludwigsburg, Germany. Email:
habekost@ph-ludwigsburg.deAbstract
Two experiments are presented to introduce students to the utility of electrochemical impedance spectroscopy (EIS) in finding electrodes suitable for applications such as battery development. We used different metal and carbon nanotube (CNT) screen-printed electrodes (SPEs) and compared EIS with cyclic voltammetry (CV) curves. In addition, we prepared the SPEs with graphene powder to show the different behaviour of modified and unmodified SPEs with CV and EIS.
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