| 학회 |
한국화학공학회 |
| 학술대회 |
2005년 가을 (10/21 ~ 10/22, 인하대학교) |
| 권호 |
11권 2호, p.2191 |
| 발표분야 |
에너지/환경 |
| 제목 |
A Pd-impregnated Nafion composite membrane using supercritical CO2 in direct methanol fuel cell (DMFC) |
| 초록 |
A Pd nanoparticle was deposit on Nafion membrane by the impregnation using supercritical carbon dioxide (scCO2) in order to reduce the methanol permeation. Pd(II)(acetylacetonate)2 was dissolved in supercritical CO2 and impregnated on Nafion membrane under 80℃ and 20 MPa for 4 hours. After the impregnation, the pressure decreased slowly by releasing CO2. The impregnated Nafion membrane was converted to Pd deposited Nafion membrane by reducing agent, sodium borohydride (NaBH4) with various concentrations under 50℃ and 2 hours. The prepared Pd-impregnated Nafion (Pd/Nafion) composite membrane were characterized by measuring their methanol permeability, and ion conductivity. Then the result are compared with those of Nafion. Morphologies of surface and Pd distributions of Pd/Nafion composite membrane were investigated by scanning electron microscopy (SEM) and electron prove micro analyzer (EPMA). Cell performance employing Pd/Nafion composite membrane was evaluated using a DMFC single cell. |
| 저자 |
신우균, 변정연, 강유찬, 석준호, 김화용
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| 소속 |
서울대 |
| 키워드 |
DMFC; supercritical fluid; nafion; palladium
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| E-Mail |
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| 원문파일 |
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