| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 봄 (04/11 ~ 04/12, 대전컨벤션센터) |
| 권호 |
38권 1호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Molecular Composite Membranes for High Temperature PEMFC |
| 초록 |
We used nano-sized material whose diameter is 1~3 nm ranges and molecular composite with Nafion for high temperature PEMFC. We grafted phosphonic acid moities to nanoparticles and we modified organic vertex groups of POSS by grafting phosphonic acid moieties (POSS-P) for improved proton conductivity at high temperature condition. Because phosphonic acid is a good candidate for high temperature proton carriers as well as solvents under anhydrous condition, Nafion molecular composites showed highly improved proton conductivities at high temperature (0.045 S/cm at 120 oC/＜40% RH) and anhydrous condition (0.025 S/cm at 120 oC/0% RH). When compounded with nanocomposites, they yielded a simultaneous increase in stain and strength. |
| 저자 |
윤태웅, 김상우, 길이진, 이희우
|
| 소속 |
서강대 |
| 키워드 |
molecular composite; nanoparticle; PEMFC; Nafion
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| E-Mail |
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