| DOI | Resolve DOI: https://doi.org/10.1149/2.0251506jes |
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| Author | Search for: Strong, Aaron1; Search for: Britton, Benjamin1; Search for: Edwards, Dave2; Search for: Peckham, Timothy J.; Search for: Lee, Hsu-Feng; Search for: Huang, Wen Y.; Search for: Holdcroft, Steven1 |
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| Affiliation | - National Research Council of Canada. Energy, Mining and Environment
- National Research Council of Canada. Construction
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| Format | Text, Article |
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| Subject | 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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| Abstract | 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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| Publication date | 2015-02-27 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21275639 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 437b2724-444e-4159-90d7-c4877ee2f24f |
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| Record created | 2015-07-14 |
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| Record modified | 2020-04-22 |
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