| Téléchargement | - Voir le manuscrit accepté : Structural influence of hydrophobic diamine in sulfonated poly(sulfide sulfone imide) copolymers on medium temperature PEM fuel cell (PDF, 1.3 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.1016/j.polymer.2013.09.030 |
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| Auteur | Rechercher : Lee, Kang Hyuck; Rechercher : Lee, So Young; Rechercher : Shin, Dong Won; Rechercher : Wang, Chenyi; Rechercher : Ahn, Sang-Hyun; Rechercher : Lee, Kee-Jung; 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 | Medium temperature PEMFC; Polymer electrolyte membrane; Sulfonated polyimide |
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| Résumé | Sulfonated poly(sulfide sulfone imide) copolymers containing flexible sulfide bond and six-membered imide ring were synthesized by random polycondensation. Two types of membranes were prepared by using sulfide (S-PSI) and sulfide sulfone (S-PSFI) based non-sulfonated diamines to investigate the effects of the hydrophobic component. IECw values were controlled to 1.51-1.94 meq g-1 depending on the degree of sulfonation (DS) which was in the range of 50-80%. The membrane series showed good thermal stability up to 310 °C and mechanical properties (tensile strength >30 MPa). Dimensional stabilities were excellent with 23-35% increases, even at 100 °C. Proton conductivities of membranes composed of different hydrophobic diamines display a relatively good correlation with water content and morphology. In fuel cell tests, the S-PSI60 membrane shows relatively high current density of 250 mA cm-2 at 0.6 V and maximum power density of 175 mW cm-2 at 120 °C, 35% RH, 1.5 atm. |
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| Date de publication | 2013-09-25 |
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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-53237 |
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| Numéro NPARC | 21269692 |
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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 | 9bd4f3f5-99e0-4418-ac42-b10f7778d98c |
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| Enregistrement créé | 2013-12-13 |
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| Enregistrement modifié | 2020-06-04 |
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