| 학회 |
한국고분자학회 |
| 학술대회 |
2007년 가을 (10/11 ~ 10/12, 일산킨텍스) |
| 권호 |
32권 2호 |
| 발표분야 |
전지기술과 고분자재료 |
| 제목 |
Modification of Nafion by Layer-by-Layer Self-Assembled Multilayere Films for Polymer Electrolyte |
| 초록 |
Methanol crossover through the proton exchange membrane (PEM) is one of the major obstacles that currently prevents the commercialization of direct methanol fuel cell (DMFC). In this work, multilayered nanofilms were deposited on the Nafion membrane by layer-by-layer(LbL) self-assembly between polyanions and polycations to prevent the methanol crossover. Polyaniline was used as a polycation and sulfonated poly(ethersulfone) as a polyanion, to produce methanol-blocking barriers on the membrane. The linear build-up of the multilayered films were monitored by UV-visible absorption spectroscopy. The morphology and thickness of the multilayered films were visually examined by TEM. We have measured conductivity and methanol permeability of the modified nafion membrane. The performance of direct methanol fuel cell using the modified Nafion membrane was also investigated. |
| 저자 |
옥정림1, 강영구1, 김동욱1, 이창진1, 조성민2
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| 소속 |
1한국화학(연), 2성균관대 |
| 키워드 |
LbL self-assembly; poly(ethersulfone); polymer electrolyte; fuel cell
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| E-Mail |
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