| 학회 |
한국화학공학회 |
| 학술대회 |
2014년 가을 (10/22 ~ 10/24, 대전 DCC) |
| 권호 |
20권 2호, p.1895 |
| 발표분야 |
재료 |
| 제목 |
Electrochemical deposition of amorphous molybdenum sulfide for hydrogen evolution catalysis |
| 초록 |
Recently, amorphous molybdenum sulfide has attracted attention as a chemically active electrocatalyst for hydrogen evolution reaction (HER). In this work, we describe an amorphous molybdenum sulfide (MoSx) film coated on electrochemically pre-treated carbon fiber paper (EP-CFP) by using a simple electrochemical deposition method. The performance of MoSx catalyst on EP-CFP can be dramatically improved by adjusting the number of cycle for the electrochemical deposition. The MoSx/EP-CFP exhibits a high cathodic current density (10 mA/cm2) even at a low overpotential of 208 mV versus reversible hydrogen electrode. Furthermore a low Tafel slope of 41 mV per decade of the amorphous MoSx catalyst reveals a rate-determining desorption step in the Volmer – Heyrovsky mechanism of the HER. |
| 저자 |
Ranjith Bose, 신석희, Zhenyu Jin, 권도현, 한승주, 민요셉
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| 소속 |
건국대 |
| 키워드 |
Molybdenum sulfide; electrochemical deposition; hydrogen evolution
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| E-Mail |
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| 원문파일 |
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