| DOI | Trouver le DOI : https://doi.org/10.1149/2.0251506jes |
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| Auteur | Rechercher : Strong, Aaron1; Rechercher : Britton, Benjamin1; Rechercher : Edwards, Dave2; Rechercher : Peckham, Timothy J.; Rechercher : Lee, Hsu-Feng; Rechercher : Huang, Wen Y.; Rechercher : Holdcroft, Steven1 |
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| Affiliation | - Conseil national de recherches du Canada. Énergie, les mines et l'environnement
- Conseil national de recherches du Canada. Construction
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| Format | Texte, Article |
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| Sujet | Catalysts; Ethers; Fuel cells; Hydrocarbons; Ionomers; Alcohol soluble; Catalyst coated membranes; Electrochemical surface area; Fuel cell performance; High boiling solvents; Hydrocarbon ionomers; Polar aprotic solvent; Polyarylene ethers; Proton exchange membrane fuel cells (PEMFC) |
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| Résumé | Novel sulfonated poly(arylene ether)s, characterized as being highly sterically encumbered, were synthesized for investigation as the ionomer in proton exchange membrane fuel cell (PEMFC) catalyst layers. Catalyst-coated membranes were prepared via their incorporation into alcohol-based catalyst inks, devoid of the high-boiling, polar aprotic solvents typically required for hydrocarbon-based ionomer inks. Catalyst layers thicknesses increased from 8.5 to 9.1 μm when the hydrocarbon ionomer loading was increased from 20 to 40 wt%, but resulted in a 77% loss in pore volume for fully hydrated electrodes. The catalyst layers possessed similar electrochemical surface areas and net ionic conductivity, yet catalyst layers containing 20 wt% ionomer yielded the highest overall fuel cell performance and considerably outperformed catalyst layers prepared from inks that contained high-boiling solvents. |
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| Date de publication | 2015-02-27 |
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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 | 21275639 |
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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 | 437b2724-444e-4159-90d7-c4877ee2f24f |
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| Enregistrement créé | 2015-07-14 |
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| Enregistrement modifié | 2020-04-22 |
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