Impact of Gas Bubble Evolution Dynamics on Electrochemical Reaction Overpotentials in Water Electrolyser Systems
University of Warwick · École Polytechnique Fédérale de Lausanne · +1 more institution
Abstract
This study establishes a theoretical framework to elucidate the impact of gas bubble evolution dynamics on the reaction overpotentials in electrolytic hydrogen and oxygen production. By distinguishing between ohmic, activation, and concentration overpotentials, we formulate governing equations to determine the influence of gas bubble growth and detachment on each overpotential component. Additionally, we employ SHapley Additive exPlanations (SHAP) analysis to interpret the patterns identified by a regression neural network trained on our analytical equations. Our findings indicate that gas bubble evolution dynamics impact reaction overpotentials to different degrees, leading to divergent escalation rates and…
Citation impact
- FWCI
- 25.80
- Percentile
- 100%
- References
- 55
Authors
3Topics & keywords
- Bubble
- Electrochemistry
- Materials science
- Environmental science
- Mechanics
- Chemistry
- Electrode
- Physics