| 학회 | 한국화학공학회 |
| 학술대회 | 2003년 봄 (04/25 ~ 04/26, 순천대학교) |
| 권호 | 9권 1호, p.776 |
| 발표분야 | 에너지/환경 |
| 제목 | A study on characteristics of the composite Nafion membrane for Direct Methanol Fuel Cells |
| 초록 | In this study, characteristics of the composite membrane such as a Zeolite/Nafion composite membrane are investigated by measuring ion conductivity, methanol permeability, AC impedance and cell performance to reduce the crossover of methanol through the polymer electrolyte membrane at direct methanol fuel cells (DMFC). The methanol crossover in the DMFC can be reduced by casting a thin film containing the mixture of Zeolite and Nafion solution. The thin film-composite membrane exhibits low methanol crossover and the membrane conductance can be improved by the sulfonation treatment. Also, Mechanical strength of the membrane can be enhanced subsequent steps of chemical cross-linkage. This membrane demonstrates a good selectivity of water over methanol and is suitable for the DMFC application. Acknowledgements This work was supported by Korea Research Foundation Grant. (KRF - 2001 - 005 - E00030) |
| 저자 | 최우진, 김홍석, 김도영, 나태경, 이태희 |
| 소속 | 연세대 |
| 키워드 | crossover; direct methanol fuel cell; Nafion membrane |
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