| 학회 | 한국재료학회 |
| 학술대회 | 2019년 가을 (10/30 ~ 11/01, 삼척 쏠비치 호텔&리조트) |
| 권호 | 25권 2호 |
| 발표분야 | E. 환경/센서 재료 분과 |
| 제목 | Fabrication of uniformly dispersed nickel-cobalt nanoalloy catalysts/graphene hybrid and improved activity of hydrogen evolution reaction |
| 초록 | Recently, there are many researches about non-precious metal-based catalysts for hydrogen evolution. The most promising materials are nickel and cobalt-based metals, and there are many trials for higher stability using carbon-based supports. However, most carbon-based nickel and cobalt catalysts have larger particle sizes and they are not uniform, so they have lower efficiency than expected. In this research, we fabricated graphene-supported a few-nano sized uniform nickel-cobalt catalyst alloys. Morphology, particle size and elemental analysis were evaluated by TEM and EDS. Quantitative measurement of nickel, cobalt was evaluated by XPS, ICP-MS. Finally, Catalytic activity and durability of hydrogen evolution reaction were measured by electrochemical analysis like linear sweep voltammetry, cyclic voltammetry, etc. |
| 저자 | 조승근, 이정우 |
| 소속 | 부산대 |
| 키워드 | Hydrogen evolution; uniform dispersion; nickel-cobalt nanoalloys; graphene-based catalysts |
