Details
| Original language | English |
|---|---|
| Article number | 153179 |
| Journal | International Journal of Hydrogen Energy |
| Volume | 203 |
| Early online date | 29 Dec 2025 |
| Publication status | Published - 23 Jan 2026 |
Abstract
This work presents experimentally determined H2 in O2 concentrations from the first approximately 1000 h of atmospheric operation of proton exchange membrane water electrolysis lab short-stacks. These exhibit a run-in effect in the form of increasing H2 gas permeation over the first few hundred hours, followed by stabilization. A model-based interpretation of the H2 in O2 data indicates an approximate doubling of both mass transfer coefficients, for the membrane and the cathode catalyst layer. Using two different membrane types with remarkably different electro-osmotic drag coefficients demonstrates that the consideration of convection in the model significantly influences the determined cathode mass transfer coefficient. However, the relative increase over time remains unchanged.
ASJC Scopus subject areas
- Energy(all)
- Renewable Energy, Sustainability and the Environment
- Energy(all)
- Fuel Technology
- Physics and Astronomy(all)
- Condensed Matter Physics
- Energy(all)
- Energy Engineering and Power Technology
Sustainable Development Goals
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In: International Journal of Hydrogen Energy, Vol. 203, 153179, 23.01.2026.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Analysis of temporal changes in hydrogen permeation during run-in phase of PEM water electrolysis lab short-stacks considering electro-osmotic drag
AU - Anschütz, Lucas
AU - Ise, Martin
AU - Gottschalk, Torben
AU - Trinke, Patrick
AU - Bensmann, Boris
AU - Hanke-Rauschenbach, Richard
AU - Suermann, Michel
N1 - Publisher Copyright: © 2025 The Authors
PY - 2026/1/23
Y1 - 2026/1/23
N2 - This work presents experimentally determined H2 in O2 concentrations from the first approximately 1000 h of atmospheric operation of proton exchange membrane water electrolysis lab short-stacks. These exhibit a run-in effect in the form of increasing H2 gas permeation over the first few hundred hours, followed by stabilization. A model-based interpretation of the H2 in O2 data indicates an approximate doubling of both mass transfer coefficients, for the membrane and the cathode catalyst layer. Using two different membrane types with remarkably different electro-osmotic drag coefficients demonstrates that the consideration of convection in the model significantly influences the determined cathode mass transfer coefficient. However, the relative increase over time remains unchanged.
AB - This work presents experimentally determined H2 in O2 concentrations from the first approximately 1000 h of atmospheric operation of proton exchange membrane water electrolysis lab short-stacks. These exhibit a run-in effect in the form of increasing H2 gas permeation over the first few hundred hours, followed by stabilization. A model-based interpretation of the H2 in O2 data indicates an approximate doubling of both mass transfer coefficients, for the membrane and the cathode catalyst layer. Using two different membrane types with remarkably different electro-osmotic drag coefficients demonstrates that the consideration of convection in the model significantly influences the determined cathode mass transfer coefficient. However, the relative increase over time remains unchanged.
UR - http://www.scopus.com/inward/record.url?scp=105026179163&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2025.153179
DO - 10.1016/j.ijhydene.2025.153179
M3 - Article
AN - SCOPUS:105026179163
VL - 203
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
SN - 0360-3199
M1 - 153179
ER -