| Téléchargement | - Voir le manuscrit accepté : Durable sulfonated poly(arylene sulfide sulfone nitrile)s containing naphthalene units for direct methanol fuel cells (DMFCs) (PDF, 1.1 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.1021/ma400154t |
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| Auteur | Rechercher : Shin, Dong Won; Rechercher : Lee, So Young; Rechercher : Kang, Na Rae; Rechercher : Lee, Kang Hyuck; Rechercher : Guiver, Michael D.1; Rechercher : Lee, Young Moo |
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| Affiliation | - Conseil national de recherches du Canada. Énergie, les mines et l'environnement
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| Format | Texte, Article |
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| Sujet | direct methanol fuel cell (DMFC); proton exchange membrane (PEM); sulfonated poly(arylene sulfide sulfone nitrile); naphthalene units |
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| Résumé | Sulfonated poly(arylene sulfide sulfone nitrile)s (SN) were synthesized to investigate the effects of naphthalene units in the polymer backbone on membrane properties. The small and planar naphthalene in the main chain induced semi-crystallinity in the polymer, as confirmed by molecular simulations and wide angle X-ray diffraction patters. The semi-crystalline SN polymer membranes exhibited excellent chemical and mechanical properties, better than those of their phenylene counterpart (SP). In particular, the water uptake and swelling ration of the SN membranes were much lower than those of the SP membranes. Furthermore, the SN membranes exhibited a greatly reduced methanol permeability (9-17 x 10(-8) cm(sq) s(-1)) compared to Nafion 212(330 x 10(-8) cm(sq) s(-1)) at 30 degrees Celsius in 10 M methanol. Moreover, sulfide- and naphthalene-based chemical structure and semi-crystalline nature of hte SN membranes enhanced their DMFC single cell performance and long-term stability during fuel cell operation. |
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| Date de publication | 2013-04-24 |
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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 du CNRC | NRC-EME-53185 |
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| Numéro NPARC | 21268536 |
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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 | e60179f7-d893-4823-81bf-ded0a8a782ef |
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| Enregistrement créé | 2013-09-17 |
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| Enregistrement modifié | 2020-06-04 |
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