| 학회 |
한국화학공학회 |
| 학술대회 |
2010년 가을 (10/21 ~ 10/22, 대전컨벤션센터) |
| 권호 |
16권 2호, p.2056 |
| 발표분야 |
재료 |
| 제목 |
Composite Fuel Cell Membranes Based on Proton Conducting Hybrid Silica Paticles |
| 초록 |
The compositemembranes were prepared by inserting polystyrenesulfonic acid-grafted silica particles into polymer matrix of sulfonated poly(arylene ether sulfone) copolymer. Atom transfer radical polymerization techniques are used in order to obtain modified silica particles grafted with sodium 4-styrenesulfonate, referred to as PSSA-g-SiO2.Sulfonated poly(arylene ether sulfone) copolymer is synthesized via nucleophilic step polymerization of sulfonated 4,4’-dichlorodiphenyl sulfone, 4,4’-dichlorodiphenyl sulfone. The copolymer is blended with various amounts of PSSA-g-SiO2 nano-particles to form organic-inorganic composite membranes.The composition and incorporation of the sulfonated repeat unit are confirmed by 1H NMR. The water uptake, proton conductivity, and thermal decomposition temperature of the membranes are measured. The silica content in the polymer matrixis evaluated as a function of membrane performances. All composite membranes show better water uptake and proton conductivity than the unmodified membrane. Moreover, the membranes are tested in a commercial single cell in humidified H2/air conditions. |
| 저자 |
박기태, 전정환, 김상곤, 이지영, 박시영, 전병희, 김성현
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| 소속 |
고려대 |
| 키워드 |
PEMFC; Electrolyte; Silica; Composite membrane
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| E-Mail |
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| 원문파일 |
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