Téléchargement | - Voir le manuscrit accepté : Effects of open-circuit operation on membrane and catalyst layer degradation in proton exchange membrane fuel cells (PDF, 900 Kio)
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DOI | Trouver le DOI : https://doi.org/10.1016/j.jpowsour.2009.08.070 |
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Auteur | Rechercher : Zhang, Shengsheng1; Rechercher : Yuan, Xiao-Zi1; Rechercher : Hin, Jason Ng Cheng2; Rechercher : Wang, Haijiang1; Rechercher : Wu, Jinfeng1; Rechercher : Friedrich, K. Andreas; Rechercher : Schulze, Mathias |
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Affiliation | - Conseil national de recherches du Canada. Institut d'innovation en piles à combustible du CNRC
- Conseil national de recherches du Canada
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Format | Texte, Article |
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Sujet | PEM fuel cell; Membrane; Catalyst layer; Degradation; Open-circuit operation; Open circuit voltage |
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Résumé | Durability issues have been attracting a great deal of attention in hydrogen/air proton exchange membrane (PEM) fuel cell research. In the present work, membrane electrode assembly (MEA) degradation under open circuit (OC) conditions was carried out for more than 250 h. By means of several on-line electrochemical measurements, the performance of the fuel cell was analysed at different times during the degradation process. The results indicate that structural changes in the PEM and catalyst layers (CLs) are the main reasons for the decline in performance during OC operation. The results also show that degradation due to platinum oxidation or catalyst contamination can be partially recovered by a subsequent potential cycling process, whereas the same cycling process cannot recover the membrane degradation. |
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Date de publication | 2010 |
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Dans | |
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Langue | anglais |
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Publications évaluées par des pairs | Oui |
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Numéro NPARC | 17101722 |
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Exporter la notice | Exporter en format RIS |
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Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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Identificateur de l’enregistrement | c58a5475-8e79-4594-b709-cfdcfc54d94f |
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Enregistrement créé | 2011-03-09 |
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Enregistrement modifié | 2020-04-17 |
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