题名 | Engineering MoS2 Basal Planes for Hydrogen Evolution via Synergistic Ruthenium Doping and Nanocarbon Hybridization |
作者 | |
通讯作者 | Liang, Yongye; Wang, Ruihu |
发表日期 | 2019-05-17
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DOI | |
发表期刊 | |
ISSN | 2198-3844
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EISSN | 2198-3844
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卷号 | 6期号:10 |
摘要 | Promoting the intrinsic activity and accessibility of basal plane sites in 2D layered metal dichalcogenides is desirable to optimize their catalytic performance for energy conversion and storage. Herein, a core/shell structured hybrid catalyst, which features few-layered ruthenium (Ru)-doped molybdenum disulfide (MoS2) nanosheets closely sheathing around multiwalled carbon nanotube (CNT), for highly efficient hydrogen evolution reaction (HER) is reported. With 5 at% (atomic percent) Ru substituting for Mo in MoS2, Ru-MoS2/CNT achieves the optimum HER activity, which displays a small overpotential of 50 mV at -10 mA cm(-2) and a low Tafel slope of 62 mV dec(-1) in 1 M KOH. Theoretical simulations reveal that Ru substituting for Mo in coordination with six S atoms is thermodynamically stable, and the in-plane S atoms neighboring Ru dopants represent new active centers for facilitating water adsorption, dissociation, and hydrogen adsorption/desorption. This work provides a multiscale structural and electronic engineering strategy for synergistically enhancing the HER activity of transition metal dichalcogenides.;Promoting the intrinsic activity and accessibility of basal plane sites in 2D layered metal dichalcogenides is desirable to optimize their catalytic performance for energy conversion and storage. Herein, a core/shell structured hybrid catalyst, which features few-layered ruthenium (Ru)-doped molybdenum disulfide (MoS2) nanosheets closely sheathing around multiwalled carbon nanotube (CNT), for highly efficient hydrogen evolution reaction (HER) is reported. With 5 at% (atomic percent) Ru substituting for Mo in MoS2, Ru-MoS2/CNT achieves the optimum HER activity, which displays a small overpotential of 50 mV at -10 mA cm(-2) and a low Tafel slope of 62 mV dec(-1) in 1 M KOH. Theoretical simulations reveal that Ru substituting for Mo in coordination with six S atoms is thermodynamically stable, and the in-plane S atoms neighboring Ru dopants represent new active centers for facilitating water adsorption, dissociation, and hydrogen adsorption/desorption. This work provides a multiscale structural and electronic engineering strategy for synergistically enhancing the HER activity of transition metal dichalcogenides. |
关键词 | |
相关链接 | [来源记录] |
收录类别 | |
语种 | 英语
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重要成果 | ESI高被引
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学校署名 | 通讯
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资助项目 | Shenzhen fundamental research funding[JCYJ20160608140827794]
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WOS研究方向 | Chemistry
; Science & Technology - Other Topics
; Materials Science
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WOS类目 | Chemistry, Multidisciplinary
; Nanoscience & Nanotechnology
; Materials Science, Multidisciplinary
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WOS记录号 | WOS:000468187200011
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出版者 | |
EI入藏号 | 20192106956090
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EI主题词 | Atoms
; Carbon Disulfide
; Carbon Nanotubes
; Electrocatalysis
; Energy Conversion
; Gas Adsorption
; Layered Semiconductors
; Molybdenum Compounds
; Multiwalled Carbon Nanotubes (Mwcn)
; Nanotubes
; Potassium Hydroxide
; Transition Metals
; Yarn
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EI分类号 | Energy Conversion Issues:525.5
; Metallurgy And Metallography:531
; Nanotechnology:761
; Chemical Reactions:802.2
; Chemical Operations:802.3
; Inorganic Compounds:804.2
; Fiber Products:819.4
; Atomic And Molecular Physics:931.3
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来源库 | Web of Science
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引用统计 |
被引频次[WOS]:209
|
成果类型 | 期刊论文 |
条目标识符 | //www.snoollab.com/handle/2SGJ60CL/25891 |
专题 | 工学院_材料科学与工程系 |
作者单位 | 1.Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China 2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
第一作者单位 | 材料科学与工程系 |
通讯作者单位 | 材料科学与工程系 |
推荐引用方式 GB/T 7714 |
Zhang, Xing,Zhou, Feng,Zhang, Shen,et al. Engineering MoS2 Basal Planes for Hydrogen Evolution via Synergistic Ruthenium Doping and Nanocarbon Hybridization[J]. Advanced Science,2019,6(10).
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APA |
Zhang, Xing,Zhou, Feng,Zhang, Shen,Liang, Yongye,&Wang, Ruihu.(2019).Engineering MoS2 Basal Planes for Hydrogen Evolution via Synergistic Ruthenium Doping and Nanocarbon Hybridization.Advanced Science,6(10).
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MLA |
Zhang, Xing,et al."Engineering MoS2 Basal Planes for Hydrogen Evolution via Synergistic Ruthenium Doping and Nanocarbon Hybridization".Advanced Science 6.10(2019).
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条目包含的文件 | 条目无相关文件。 |
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