| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
37권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Polyimide nonwoven fabric-reinforced, flexible phosphosilicate glass composite membranes for high-temperature/low-humidity proton exchange membrane fuel cells |
| 초록 |
We demonstrate polyimide (PI) nonwoven fabric-reinforced, flexible proton-conductive phosphosilicate glass composite membrane (referred to as “PI-GC membrane”) for potential application in high-temperature/low-humidity proton exchange membrane fuel cells (PEMFCs). The PI-GC membrane is fabricated via the impregnation of a 3-glycidyloxypropyl trimethoxysilane (GPTMS)/orthophosphoric acid (H3PO4) mixture into a PI nonwoven substrate followed by in-situ sol-gel synthesis and hydrothermal treatment. Owing to its unique structural design and integrity, the PI-GC membrane provides unprecedented improvement in the mechanical properties (notably flexibility and thickness) over typical bulk phosphosilicate glasses that are highly fragile and thick. Another notable advantage of the PI-GC membrane is higher proton conductivity at dehumidified conditions, as compared to a hydration-dependent polymer electrolyte membrane such as sulfonated poly(arylene ether sulfone) (SPAES). |
| 저자 |
임준묵1, 원지혜1, 이현지1, 이무석2, 고창현3, 이상영1
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| 소속 |
1강원대, 2코오롱인더스트리(주), 3전남대 |
| 키워드 |
proton exchange membrane fuel cells; reinforced phosphosilicate glass composite membranes; polyimide nonwoven fabrics; 3-glycidyloxypropyl trimethoxysilane/orthophosphoric acid; mechanical flexibility; proton conductivity
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| E-Mail |
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