| 학회 |
한국고분자학회 |
| 학술대회 |
2007년 가을 (10/11 ~ 10/12, 일산킨텍스) |
| 권호 |
32권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Sulfonated Poly(arylene ether)/Silica Nanocomposite Membranes for Proton Exchange Membranes for Fuel Cells |
| 초록 |
The sulfonated poly(arylene ether)/silica hybrid membranes were prepared using a tetraethylorthosilicate(TEOS) hydrolysis sol-gel process under acidific conditions and composite membranes with 5%, 10% and 15% additive loadings were prepared by solution casting. Silica nanoparticles affect the characteristics of membranes such as proton conductivity, methanol permeability and water uptake. Therefore the inorganic nanoparticles should be considerately chosen to fabricate hybrid membranes with attractive properties for DMFC. Silica loading in the composite membranes helped to inhibit methanol crossover while higher silica loadings decrease the proton conductivity in spite of the increasing membrane’s water uptake. DMFC performance using the composite membranes with 5wt% silica loading was higher than using an original sulfonated membranes |
| 저자 |
박은선, 이관수, 정명환, 조영무, 이재석
|
| 소속 |
광주과학기술원 |
| 키워드 |
Organic-inorganic hybrid membranes; Silica; Sol-gel process; Proton exchange membrane
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| E-Mail |
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