| 학회 |
한국화학공학회 |
| 학술대회 |
1999년 가을 (10/22 ~ 10/23, 경남대학교) |
| 권호 |
5권 2호, p.3401 |
| 발표분야 |
에너지/환경 |
| 제목 |
직접 메탄올 연료전지를 위한 anode 전극재료 개발 |
| 초록 |
Direct methanol fuel cell (DMFC) needs better anode electrocatalysts than Pt, which suffers from self CO poisoning phenomena. The improved oxidation kinetics enabled by Pt promoters such as Ru, Sn, Mo, W or Os has been attributed to a bifunctional and/or an electronic effect. The alloy electrode materials were prepared by reduction and colloidal methods. It was generally accepted that binary system such as those based on Pt, these components are much more active in promoting DMFC reactions than pure platinum catalysts. The oxidation onset on pure Pt was 0.45 V and the potentials decreased with alloying. Pt-Ru showed the lowest onset potential. However, chronoamperometry provided high stability at Pt-Mo on CO poisoning, which shows a promising candidate as DMFC anode material. The strategy of ternary or quaternary electrocatalysts, the effects of synthesis and particle sizes will be discussed.
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| 저자 |
박경원, 이설아, 오인환, 남석우, 하흥용, 임태훈, 홍성안, 성영은
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| 소속 |
광주과학기술원 신소재공학과 |
| 키워드 |
fuel cell; methanol; anode; CO
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| E-Mail |
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| 원문파일 |
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