| 학회 |
한국화학공학회 |
| 학술대회 |
2015년 가을 (10/21 ~ 10/23, 일산 KINTEX) |
| 권호 |
21권 2호, p.2126 |
| 발표분야 |
재료 |
| 제목 |
Process Optimization of Electrochemical Deposition of MoS2 catalyst for Electrochemical Hydrogen Evolution Reaction |
| 초록 |
Recently, amorphous molybdenum sulfide (MoSx) has appeared to be an emerging material for electrochemical hydrogen evolution reaction (HER). Although there are several electrochemical deposition methods for MoS2, process parameters for the electrochemical deposition of MoS2 were not optimized for hydrogen evolution reactions. Here, we prepare MoSx catalyst on carbon fiber paper (CFP) by electrochemical deposition method using a freshly-prepared sodium tetrathiomolybdate (Na2MoS4) solution. The process parameters such as precursor concentrations, deposition time, and applied voltage are optimized to improve the HER performance on MoSx catalyst. It is demonstrated that the exchange current density, Tafel slope, and overpotential to reach a cathodic current of 10 mA/cm2 are significantly enhanced by adjusting the deposition time, precursor concentrations, and applied voltage. |
| 저자 |
민요셉, 한승주, 고동현, 신석희, Ranjith Bose, 김성준, 이선영, Zhenyu Jin
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| 소속 |
건국대 |
| 키워드 |
MoS2; Electrochemical deposition; hydrogen evolution reaction; overpotential
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| E-Mail |
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| 원문파일 |
초록 보기 |
