| 학회 |
한국화학공학회 |
| 학술대회 |
2008년 봄 (04/23 ~ 04/25, 제주ICC) |
| 권호 |
14권 1호, p.715 |
| 발표분야 |
에너지/환경 |
| 제목 |
A study on the effect of ionic liquids as a proton carrying solvent in sulfonated polymers on membrane properties |
| 초록 |
Composite membranes consisting of ionic liquid and sulfonated polymers were prepared and their physical and electrochemical properties were measured under unhumidified conditions for their application to the high temperature fuel cells (PEFCs). The various mole fractions of ionic liquid embedding in sulfonated polymer with different ion-exchange capacity (IEC) were employed to investigate the effect of sulfonic group in composite membrane. The thermal properties and ionic conductivities were explored by thermogravimetric analyzer (TGA), differential scanning calorimetry (DSC), and impedance spectroscopy. For various mole fraction of ionic liquid, the proton conductivity was found to increase with increasing ionic liquid contents, and the proton conductivity of composite membrane increases with elevating temperature. These ionic liquid-based membranes are proposed as new polymer electrolytes for high temperature PEFCs. |
| 저자 |
조은경1, 박진수2, 이원용2, 김창수2, 박승빈3
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| 소속 |
1KAIST / 한국에너지기술(연), 2한국에너지기술(연), 3KAIST |
| 키워드 |
composite membrane; fuel cell; ionic liquid
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| E-Mail |
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| 원문파일 |
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