| Téléchargement | - Voir le manuscrit accepté : Using silica nanoparticles for modifying sulfonated poly(phthalazinone ether ketone) membrane for direct methanol fuel cell : A significant improvement on cell performance (PDF, 935 Kio)
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| DOI | Trouver le DOI : https://doi.org/10.1016/j.jpowsour.2005.03.23 |
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| Auteur | Rechercher : Su, Yu-Huei; Rechercher : Liu, Ying-Ling; Rechercher : Sun, Yi-Ming; Rechercher : Lai, Juin-Yih; Rechercher : Guiver, Michael D.1; Rechercher : Gao, Yan1 |
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| Affiliation | - Conseil national de recherches Canada. Institut de technologie des procédés chimiques et de l'environnement du CNRC
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| Format | Texte, Article |
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| Sujet | Sulfonated polymer; Silica nanocomposites; Fuel cell |
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| Résumé | Sulfonated poly(phthalazinone ether ketone) (sPPEK) with a degree of sulfonation of 1.23 was mixed with silica nanoparticles to form hybrid materials for using as proton exchange membranes. The nanoparticles were found homogeneously dispersed in the polymer matrix and a high 30 phr (parts per hundred resin) loading of silica nanoparticles can be achieved. The hybrid membranes exhibited improved swelling behavior, thermal stability, and mechanical properties. The methanol crossover behavior of the membrane was also depressed such that these membranes are suitable for a high methanol concentration in feed (3 M) in cell test. The membrane with 5 phr silica nanoparticles showed an open cell potential of 0.6V and an optimum power density of 52.9mWcm−2 at a current density of 264.6mAcm−2, which is better than the performance of the pristine sPPEK membrane and Nafion® 117. |
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| Date de publication | 2006-04-21 |
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| Dans | |
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| Langue | anglais |
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| Numéro du CNRC | NRCC 47845 |
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| Numéro NPARC | 12401000 |
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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 | cb4d7d0b-79ff-42b2-8d3d-03fa840339f6 |
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| Enregistrement créé | 2009-10-26 |
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| Enregistrement modifié | 2020-04-22 |
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