Rational design of stable sulfur vacancies in molybdenum disulfide for hydrogen evolution
文献类型：期刊论文
| 作者 | Zhao, Yunxing; Tang, Michael T.; Wu, Sudong; Geng, Jing; Han, Zhaojun; Chan, Karen; Gao, Pingqi; Li, Hong |
| 刊名 | JOURNAL OF CATALYSIS
 |
| 出版日期 | 2020 |
| 卷号 | 382页码:320-328 |
| 关键词 | MOS2 MONOLAYER ACTIVE-SITES S VACANCIES BASAL-PLANE EFFICIENT CATALYST GRAPHENE SULFIDE HYDRODEOXYGENATION ELECTROCATALYSTS |
| DOI | 10.1016/j.jcat.2019.12.028 |
| 英文摘要 | Sulfur (S) vacancies in MoS2 have been found to act as a new active center, which shows an unprecedented intrinsic HER activity under elastic strain. However, such S-vacancies are unstable and the activities are very sensitive to the vacancy concentration. A strategy to stabilize these abundant active sites is thus highly desirable. Herein, we rationally design a catalyst system to stabilize S-vacancies in the basal plane of 2H-MoS2 supported on defective vertical graphene network (VGN). The energetically favorable line-shaped S-vacancies in MoS2 show a consistently high HER activity that is insensitive to S-vacancy concentration. Moreover, the defective graphene support effectively stabilizes these S-vacancies. The optimized catalyst exhibits a superior HER activity with overpotential of 128 mV at 10 mA cm(-2) and Tafel slope of 50 mV dec(-1). Most importantly, the catalyst shows greatly increased stability over 500 h; benchmarking the most stable nonprecious HER catalyst in acidic media to date. (C) 2019 Elsevier Inc. All rights reserved. |
| 学科主题 | Chemistry ; Engineering |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/20046]  |
| 专题 | 2020专题 2020专题_期刊论文 |
| 作者单位 | 1.Gao, PQ 2.Chan, K 3.Li, H (corresponding author), Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore 639798, Singapore. |
| 推荐引用方式 GB/T 7714 | Zhao, Yunxing,Tang, Michael T.,Wu, Sudong,et al. Rational design of stable sulfur vacancies in molybdenum disulfide for hydrogen evolution[J]. JOURNAL OF CATALYSIS,2020,382:320-328. |
| APA | Zhao, Yunxing.,Tang, Michael T..,Wu, Sudong.,Geng, Jing.,Han, Zhaojun.,...&Li, Hong.(2020).Rational design of stable sulfur vacancies in molybdenum disulfide for hydrogen evolution.JOURNAL OF CATALYSIS,382,320-328. |
| MLA | Zhao, Yunxing,et al."Rational design of stable sulfur vacancies in molybdenum disulfide for hydrogen evolution".JOURNAL OF CATALYSIS 382(2020):320-328. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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