| 학회 | 한국화학공학회 |
| 학술대회 | 2007년 가을 (10/26 ~ 10/27, 한국과학기술원) |
| 권호 | 13권 2호, p.1788 |
| 발표분야 | 에너지/환경 |
| 제목 | RuSe/C catalysts preparation by polyol method for oxygen reduction reaction |
| 초록 | Fuel cell is one of the best candidates for clean energy. However, there are many problems for commercialization such as fuel cell prize, durability higher power density. Especially platinum catalyst is main reason of fuel cell prize. Then, non-platinum catalysts have been studied by many researchers. Palladium-transition metal, active carbon, and Ru-chalcogen metal are suggested as substitutions for platinum. Among them, RuSe catalysts show good activity for oxygen reduction and low methanol oxidation. So we prepare RuSe/C catalysts by polyol method and test them. We prepared RuSe/C 60wt% catalysts with different Se ratio (5, 10, 15, 20, 30, 50 mol%). RuCl3, Ru(acac) and SeCl3 were used as metal precursors and EG(ethylene glycol) was selected as reducer. After dissolving the precursors in EG, the mixture was heated to below solvent boiling temperature and kept under refluxing condition for 4h. Then, catalysts were cleaned by water and ethanol. Electrochemical studies were performed with Rotating Disk Electrode Se 15~20mol% RuSe/C catalysts show highest activity in oxygen reduction. In methanol tolerance test, all catalysts had good methanol tolerance. |
| 저자 | 이기락1, 전민구2, 우성일1 |
| 소속 | 1한국과학기술원 / 초미세화학공정시스템연구센터, 2한국과학기술원 |
| 키워드 | Fuel cell; cathode catalysts; RuSe |
| 원문파일 | 초록 보기 |
