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New programs for fitting using an equivalent circuit model and data visualization of electrochemical impedance spectroscopy were developed using Python and its open-source libraries. Executable programs have a graphical user interface and can run on a Microsoft Windows operating system without utilizing other platform applications. Many practical functions were implemented, e.g., supporting various file formats, graphical support functions to obtain a good initial guess, display interactive three-dimensional plots of the spectrum, a modified logarithmic Hilbert integral transform test, display multiple spectra data, etc. The developed executable programs were released by free of charge for use under the MIT license.

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Keyword: model fitting, free software, electrochemical impedance, data visualization

Date published: 2021-03-05

Publisher: The Electrochemical Society of Japan

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Manuscript type: Author's original (Submitted manuscript)

MDR DOI: https://doi.org/10.34968/nims.1435

First published URL: https://doi.org/10.5796/electrochemistry.21-00010

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Updated at: 2024-01-05 22:11:18 +0900

Published on MDR: 2021-08-13 01:19:57 +0900