| Download | - View accepted manuscript: A capillary water retention effect to improve medium-temperature fuel cell performance (PDF, 1007 KiB)
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| DOI | Resolve DOI: https://doi.org/10.1016/j.elecom.2013.03.018 |
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| Author | Search for: Lee, So Young; Search for: Shin, Dong Won; Search for: Wang, Chenyi; Search for: Lee, Kang Hyuck; Search for: Guiver, Michael D.1; Search for: Lee, Young Moo |
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| Affiliation | - National Research Council of Canada. Energy, Mining and Environment
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| Format | Text, Article |
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| Subject | Fuel cell; Polymer electrolyte membrane; Medium-temperature; Sulfonated poly(arylene ether sulfone); Morphology |
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| Abstract | We demonstrate that small and narrow hydrophilic conducting morphology in sulfonated aromatic membranes leads to much better fuel cell performance at medium temperature and low humidity conditions than those with larger hydrophilic domains. A comparison of three types of sulfonated poly(arylene ether sulfone)s (SPAES) with random, block, and graft architecture indicates that small hydrophilic domain sizes (less than 5 nm) appear to be important in supporting water retention under low relative humidity (RH) conditions intended for medium temperature (less than 100 degrees Celsius) fuel cell applications. The graft copolymer outperformed both a random copolymer and multiblock copolymer at 120 degrees Celsius and 35% RH fuel cell operating conditions due to capillary condensation of water within the 3-5 nm hydrophilic domains. |
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| Publication date | 2013-03-22 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Identifier | S1388248113001094 |
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| NRC number | NRCC 53179 |
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| NPARC number | 21268533 |
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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 | 3ac5b5ba-6df7-46d1-99f3-b7f50dfa10ac |
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| Record created | 2013-09-13 |
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| Record modified | 2020-06-04 |
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