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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Simon Araya, Samuel
Luxembourg Institute of Science and Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2022Evaluation of performance degradation of high temperature proton exchange membrane fuel cells using a simple start-stop testing protocolcitations
- 2021Effects of impurities on pre-doped and post-doped membranes for high temperature PEM fuel cell stackscitations
- 2019Hydrogen mass transport resistance changes in a high temperature polymer membrane fuel cell as a function of current density and acid dopingcitations
- 2019The influence of ferric ion impurities on a proton exchange membrane electrolyzer operated at varying temperature and current density conditions
- 2019Influence of the operation mode on PEM water electrolysis degradationcitations
- 2019Long-term contamination effect of iron ions on cell performance degradation of proton exchange membrane water electrolysercitations
Places of action
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article
Influence of the operation mode on PEM water electrolysis degradation
Abstract
This paper compares the performance over time of seven different operation modes with the scope of investigating realistic degradation responses of a polymer electrolyte membrane water electrolysis (PEM WE) to different operation modes for grid-balancing services. Among these modes are constant current and constant voltage operations at different temperatures and current cycling operations, including a solar profile. It was found that faster current cycling improved the overall cell performance over the test period of 500 h, mainly due to a decrease in total ohmic resistance, which is also observed during the break-in phase preceding the experiments. Dynamic operation led to more severe fluoride emission from the catalyst binder, which improved the performance in terms of cell potential but could be a concern for long term degradation as membrane thinning promotes higher gas crossover. All other operation modes on the other hand suffered from an increase in total ohmic resistance, leading to an overall performance decrease, which is suspected to be due to the passivation of the Ti components. Higher operating temperatures were found to enhance cell performance, but are detrimental from a durability point of view since they exacerbate both membrane thinning and passivation processes.