Considerations about the gas fraction in two-phase electrochemical reactors by using a rigorous hydrodynamic model

Colli, Alejandro Nicolás; Bisang, Jose Maria

doi:10.1016/j.ces.2023.118699

Cited by 3 publications

(1 citation statement)

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“…Thus, the do-while loop ensures that the specified electrical conditions are fulfilled at every time step. The algorithm for calculating current distribution under fixed cell potential difference, potentiostatic or galvanostatic control is described in detail elsewhere, 41,[47][48][49] and is hosted on GitHub. 50 Dynamic meshes and mesh motion.-Traditional Computational Fluid Dynamics (CFD) involves solving fluid equations on a fixed grid.…”

Section: Mathematical Modelmentioning

confidence: 99%

Modeling Electrode Shape Changes in Electrodeposition and Electrochemical Dissolution

Colli,

Dominguez-Benetton,

Fransaer

2024

J. Electrochem. Soc.

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In the fields of metal production, surface finishing, and electronic device manufacturing, achieving precise control over electrochemical processes is crucial for product quality, efficiency, and cost-effectiveness. This paper introduces an open-source modeling tool based on a dynamic mesh technique built on the finite volume method using the C++ toolbox OpenFOAM. This tool has been validated against both newly proposed analytical solutions and existing numerical and experimental results in various conditions and kinetic controls. The analytical solution predicts the electrode surface position, current, or cell voltage difference for confined electrodes. It considers primary and secondary current distributions with linear kinetics under different electric control modes. Notably, the validation highlights the congruence of the new method with prior studies and underscores its potential to offer enhanced predictive capabilities. Furthermore, this work extends beyond traditional modeling approaches by incorporating pulse reverse plating, which has been successfully modeled using the dynamic mesh method. Additionally, a modified Wagner number ("W" "a" _"PR" ) is proposed to predict in advance the optimal conditions for achieving a more uniform deposit. This innovative approach contributes to the advancement of theoretical understanding and will improve practical applications in electrochemical deposition and dissolution processes.

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Section: Mathematical Modelmentioning

confidence: 99%