| 학회 |
한국고분자학회 |
| 학술대회 |
2008년 봄 (04/10 ~ 04/11, 컨벤션 뷰로(대전)) |
| 권호 |
33권 1호 |
| 발표분야 |
고분자 가공/복합재료 |
| 제목 |
Preparation of Nafion/sulfonated poly(phenylsilsesquioxane) proton exchange nanocomposite membrane for high temperature |
| 초록 |
Nafion/sulfonated poly(phenylmethyl silsesquioxane) (PPSQ) composite membranes are fabricated using homogeneous dispersive mixing and solvent casting method for direct dimethyl ether fuel cell (DDMEFC) applications operated above 100oC. Sulfonation reactions were carried out by changing the molar ratio of chlorosulfonic acid. With the increasement of molar ratio of chlorosulfonic acid, degree of sulfonation(DS), ion exchange capacity(IEC), water uptake, and proton conductivity of composite membrane increased. Also the composite membrane showed lower fuel crossover and higher proton conductivity compared to Nafion membrane at high temperature. The Nafion/sPPSQ composite membranes have better single cell performance than Nafion 115 at temperature ranging from 100oC to 120oC. |
| 저자 |
남승은1, 김상옥1, 강영구1, 이재욱2, 이규호1
|
| 소속 |
1한국화학(연), 2서강대 |
| 키워드 |
Direct dimethyl ether fuel cell; Composite membrane; Proton Conductivity; Nafion; Sulfonated Poly phenyl silsesquioxane
|
| E-Mail |
|
