| 학회 |
한국화학공학회 |
| 학술대회 |
2007년 가을 (10/26 ~ 10/27, 한국과학기술원) |
| 권호 |
13권 2호, p.1772 |
| 발표분야 |
에너지/환경 |
| 제목 |
Highly CO tolerant Pt/WC methanol electro-oxidation catalyst |
| 초록 |
Commercial tungsten carbide (WC) was used as a new support for methanol electro-oxidation. Synthesized Pt/WC catalyst (20 wt.% Pt) was analyzed by XRD, TEM, CV, CO-stripping and methanol electro-oxidation. From XRD and TEM, uniform Pt particle size of 7.5 nm was obtained. From CV and CO stripping analysis spill-over behavior of H+ was observed in Pt/WC catalyst. In CO stripping results, CO electro-oxidation peak potential decreased from 0.80 V of Pt/C to 0.68 V in Pt/WC. The amount of H+ spill-over was determined to be 1.5 times of H+ adsorbed on Pt. In methanol electro-oxidation the Pt/WC catalyst exhibited 30 % higher specific activity than that of Pt/C. |
| 저자 |
전민구1, 이기락2, 신중원2, 우성일2
|
| 소속 |
1한국과학기술원 생명화학공학과 & 초미세 화학공정시스템 연구센터, 2한국과학기술원 생명화학공학과 & 초미세 화학공정시스템 연구센터 |
| 키워드 |
methanol electro-oxidation; tungsten carbide; direct methanol fuel cell
|
| E-Mail |
|
| 원문파일 |
초록 보기 |
