Volume 46, Issue 3 pp. 3295-3323
RESEARCH ARTICLE

Analytical study of over-voltages in alkaline electrolysis and their parametric dependencies through a multi-physical model

Gregory De Dominici

Corresponding Author

Gregory De Dominici

Expleo Group, South-East R&D department, Hub'Side Cap Horizon, Vitrolles, France

Correspondence

Gregory De Dominici, Expleo Group, South-East R&D department, Hub'Side Cap Horizon, 2 Impasse de Chasles, 13127, Vitrolles, France.

Email: [email protected]

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Bertrand Gabriel

Bertrand Gabriel

Expleo Group, South-East R&D department, Hub'Side Cap Horizon, Vitrolles, France

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First published: 19 October 2021
Citations: 12

Funding information: Expleo Group

Summary

This work is an attempt to develop a model of alkaline electrolysis to compare AEM and conventional electrolysis cells performances over several operating conditions, including a change in electrolytes' composition for hydrogen production. It shows that over-potential behaves differently with whether an AEM/conventional electrolyser is used, or NaOH/KOH electrolyte is used. This model of the electrolytic cell will be a benchmark for developing a further complete representation for alkaline electrolysis which can be used for simulation as well for developing control algorithms-controlled hydrogen production.

CONFLICT OF INTEREST

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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