Publication date: Apr 08, 2025
We present a simulation of dynamic electrochemical impedance spectroscopy using numerical methods based on the finite element solution of differential equations. While the study of electrochemical systems during operation is of great interest, one is always confronted with challenges due to non-linearities when exciting the system with both a cyclic voltammetry and a multi-sine. We therefore propose a two-component-model, which first solves for the cyclic voltammetry and then calculates the effect of the multi-sine by means of linearization around the cyclic voltammetry of all the variables. We provide two models: (i) the dynamic transfer function model of DEIS during a redox reaction and (ii) a stationary version of model (i). Both models are based on an existing semi-analytical model described in reference #2.
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File name | Size | Description |
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M1_dynamic_transfer_function_model.mph
MD5md5:af8bd1819502e52d7ccf5684bd826c71
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12.7 MiB | COMSOL file with the dynamic transfer function model |
M1_dynamic_transfer_function_model.java
MD5md5:c4fe99364f56cb419419344760ef6f7f
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492.5 KiB | COMSOL model as Java file with the dynamic transfer function model |
M2-stationary_transfer_function_model.mph
MD5md5:df480872a0cdd95b2af76e42f57a4005
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8.0 MiB | COMSOL file with the stationary transfer function model |
M2-stationary_transfer_function_model.java
MD5md5:86b3a6d16a2dceb0f3dc4a87057ec693
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453.2 KiB | COMSOL model as Java file with the stationary transfer function model |
2025.56 (version v1) [This version] | Apr 08, 2025 | DOI10.24435/materialscloud:fn-1y |