| 학회 |
한국화학공학회 |
| 학술대회 |
2007년 가을 (10/26 ~ 10/27, 한국과학기술원) |
| 권호 |
13권 2호, p.1853 |
| 발표분야 |
에너지/환경 |
| 제목 |
Platinized WC nanoporous as an anode catalyst for PEMFC : Activity and CO tolerance in half cell system |
| 초록 |
Tungsten carbides have been considered as an electrocatalysts for hydrogen oxidation because of their platinum-like catalysis and high CO resistance in various reactions. In this study, a mesoporous tungsten carbide of WC phase was synthesized by using ammonium meta tungstate as tungsten precursor and resorcinol-formaldehyde polymer as carbon source in the presence of a surfactant. The platinum supported on this material with a low loading (7.5wt%) served as an effective CO tolerant electroanode catalyst. The Pt/WC catalyst showed two times higher activity per mass of Pt for hydrogen electro-oxidation compared to a commercial Pt/C catalyst (E-Teck). In addition, it exhibited much improved resistance to CO poisoning relative to the Pt/C (E-Tech) catalyst. Since the catalyst is also stable in electrochemical environment, it could become an alternative anode catalyst for PEMFC. |
| 저자 |
함동진, 한승현, 배강홍, 이재성
|
| 소속 |
포항공과대 |
| 키워드 |
Mesoporous WC; platinized WC; PEMFC
|
| E-Mail |
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| 원문파일 |
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