globalchange  > 气候变化与战略
DOI: 10.1016/j.scib.2019.10.024
论文题名:
A highly active and durable electrocatalyst for large current density hydrogen evolution reaction
作者: Xue S.; Liu Z.; Ma C.; Cheng H.-M.; Ren W.
刊名: Science Bulletin
ISSN: 20959273
出版年: 2020
卷: 65, 期:2
起始页码: 123
结束页码: 130
语种: 英语
中文关键词: Alkaline electrolyte ; Co-axial heterostructure ; HER ; Large current density ; MoS2/Ni3S2 nanowire
英文关键词: Electrocatalysts ; Electrolytes ; Layered semiconductors ; Molybdenum compounds ; Nanowires ; Precious metals ; Alkaline electrolytes ; Alkaline solutions ; Co-axial ; Hydrogen evolution reactions ; Large current density ; Large scale productions ; Non-noble metal catalysts ; Splitting waters ; Current density
英文摘要: Splitting water under large current density is essential for efficient large-scale production and commercial utilization of hydrogen. However, the performance of the available electrocatalysts for hydrogen evolution reaction (HER) is far from satisfactory under large current density in alkaline electrolyte. Here we report a remarkably active and durable electrocatalyst, long and dense MoS2/Ni3S2 co-axial heterostructure nanowires on nickel foam (NF). Notably, it requires only 182 and 200 mV overpotential to achieve large current density of 500 and 1000 mA cm−2, respectively, in alkaline solution, which are far superior to those of Pt/C-NF (281 and 444 mV) and the reported best non-noble metal catalysts (191 and 220 mV). The physical origin for this extraordinary HER performance is analyzed, which provides a useful guide for structure design of electrocatalysts to further improve their performance. © 2019 Science China Press
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170108
Appears in Collections:气候变化与战略

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作者单位: School of Materials Science and Engineering, Northeastern University, Shenyang, 110819, China; Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China; School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, China; Tsinghua-Berkeley Shenzhen Institute (TBSI), Tsinghua University, Shenzhen, 518055, China

Recommended Citation:
Xue S.,Liu Z.,Ma C.,et al. A highly active and durable electrocatalyst for large current density hydrogen evolution reaction[J]. Science Bulletin,2020-01-01,65(2)
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