Implementation of Bounded Diffusion Impedance in a Model Pyeis to Correctly Simulate Flow Gradient on Channel-Electrode in Microfluidics - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue ECS Meeting Abstracts Année : 2021

Implementation of Bounded Diffusion Impedance in a Model Pyeis to Correctly Simulate Flow Gradient on Channel-Electrode in Microfluidics

Résumé

Here, we proposed to test the limits of the bounded diffusion impedance model by using electrochemical impedance spectroscopy (EIS) measurements in a microfluidic device architecture bearing a set of microelectrodes integrated in microchannel. This EIS Nyquist plot behaviour was currently modelled with the Randles equivalent circuit. In this work, one of the main advantages for using PyEIS (a Python-based Electrochemical Impedance Spectroscopy) software is being able to modify and correct the models with a simple implementation in the source code freely accessible on the website of the author Kristian B. Knudsen. The obtained results after implementing the diffusion-convective equation in the PyEIS code permits to adapt each function to be able to plot, simulate and fit a specific modified Randles for channel-electrode. The modified Randles was used for preliminary tests for optimization of the parameters of flow in the microfluidic channel by comparing the diffusion layer thickness as a function with the volumetric flow.
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Dates et versions

hal-03872856 , version 1 (26-11-2022)

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Citer

Rassen Boukraa, Claire Poujouly, Pedro Gonzalez-Losada, Jean Gamby. Implementation of Bounded Diffusion Impedance in a Model Pyeis to Correctly Simulate Flow Gradient on Channel-Electrode in Microfluidics. ECS Meeting Abstracts, 2021, MA2021-01 (60), pp.1599-1599. ⟨10.1149/MA2021-01601599mtgabs⟩. ⟨hal-03872856⟩
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