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DC Field | Value | Language |
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dc.citation.endPage | 37 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 30 | - |
dc.citation.title | SOLID STATE IONICS | - |
dc.citation.volume | 190 | - |
dc.contributor.author | Seol, Jong-Heon | - |
dc.contributor.author | Won, Ji-Hye | - |
dc.contributor.author | Yoon, Kyung-Suk | - |
dc.contributor.author | Hong, Young Taik | - |
dc.contributor.author | Lee, Sang-Young | - |
dc.date.accessioned | 2023-12-22T06:11:04Z | - |
dc.date.available | 2023-12-22T06:11:04Z | - |
dc.date.created | 2014-09-17 | - |
dc.date.issued | 2011-05 | - |
dc.description.abstract | We demonstrate a new reinforcing porous substrate for a proton-conducting composite membrane targeting proton exchange membrane fuel cells (PEMFC) applications. This porous substrate is based on hygroscopic SiO2 nanoparticles-coated poly(paraphenylene terephthalamide) (PPTA) nonwovens. The SiO2 nanoparticles (530 nm), which are interconnected by tetraethoxy silane (TEOS)-based silicate binders, play a crucial role in improving mechanical properties, hydrophilicity, and water retention capability of the substrate. The PPTA nonwoven serves as a support layer offering flexibility and toughness to the substrate. The SiO2 nanoparticles-coated PPTA nonwoven substrate is subsequently impregnated with sulfonated poly(arylene ether sulfone) (SPAES, degree of sulfonation = 49.3%) that acts as a proton-conducting electrolyte. In comparison to a pristine SPAES membrane, the porous substrate-reinforced SPAES composite membrane presents the substantially improved dimensional change, and more intriguingly, is effective in suppressing the steep decline of proton conductivity at a low humidity condition of 30 °C/50% RH. | - |
dc.identifier.bibliographicCitation | SOLID STATE IONICS, v.190, no.1, pp.30 - 37 | - |
dc.identifier.doi | 10.1016/j.ssi.2011.03.015 | - |
dc.identifier.issn | 0167-2738 | - |
dc.identifier.scopusid | 2-s2.0-79956062129 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/6152 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=79956062129 | - |
dc.identifier.wosid | 000291847400005 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.title | SiO2 nanoparticles-coated poly(paraphenylene terephthalamide) nonwovens as reinforcing porous substrates for proton-conducting, sulfonated poly(arylene ether sulfone)-impregnated composite membranes | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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