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Updated: Feb 28, 2026

Electrochemical Impedance Spectroscopy as a Tool for Electrochemical Rate Constant Estimation
Published on: October 10, 2018
Computational Approach to Fast Analysis of Electrochemical Impedance Spectroscopy
Cristiano Lo Pò1, Stefano Boscarino1, Francesco Ruffino1,2,3
1Dipartimento di Fisica e Astronomia "Ettore Majorana", Università di Catania, Via S. Sofia 64, 95123 Catania, Italy.
Abstract:
Electrochemical Impedance Spectroscopy (EIS) is a widely used technique for characterizing the electrode-electrolyte interface. EIS analysis can be very complex and tedious. In this work, a fitting algorithm written in C is implemented on OriginPro software to avoid the data import/export operation and speed up the analysis. An automated fitting procedure that assigns the initial parameters is implemented for the simplest equivalent circuit. In addition, the possibility of using a custom error function is explored, with results comparable to that of reference software. The developed algorithm is tested on two different case studies.
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