NDLI: A strategy to synergistically increase the number of active edge sites and the conductivity of MoS<sub>2</sub> nanosheets for hydrogen evolution

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Nanoscale Vol - 7 Issue - 9

Nanoscale Vol - 7 Issue - 8

Nanoscale Vol - 7 Issue - 7

Nanoscale Vol - 7 Issue - 6

Nanoscale Vol - 7 Issue - 5

A strategy to synergistically increase the number of active edge sites and the conductivity of MoS₂ nanosheets for hydrogen evolution

Content Provider	Royal Society of Chemistry (RSC)
Author	Yu, Hailong Yu, Xianbo Zhang, Shen Gao, Peng Li, Chunyan Chen, Yujin
Copyright Year	2015
Abstract	Nanostructured MoS2 is very promising as an electrocatalyst for hydrogen evolution due to a greater number of active edge sites. However, a very large resistance between basal planes decreases the overall efficiency of hydrogen evolution, and greatly limits its application in industry. Herein we develop a facile strategy to synergistically increase the number of active edge sites and the conductivity of MoS2. MoS2 nanosheet arrays can be grown vertically on a carbon fiber cloth (CFC) substrates by a facile strategy. On the one hand, ammonium fluoride in the reaction system could effectively etch the inert basal plane of the MoS2 nanosheets, leading to the formation of pits in the inert basal plane of the MoS2 nanosheets. Thereby the number of active edge sites is significantly increased. On the other hand, the vertical growth of MoS2 nanosheet arrays on CFCs can significantly decrease the resistance of MoS2-based electrocatalysts. As a result, the MoS2-based electrocatalysts exhibit excellent catalytic activity for hydrogen evolution reactions, with a small Tafel slope and a large cathodic current density. Moreover, the CFC can be repeatedly utilized as a template to grow ultrathin MoS2 nanosheet arrays for HERs. The excellent activity and recyclable utilization, as well as mass production, indicate that the composite has promising applications in industry.
Starting Page	8731
Ending Page	8738
Page Count	8
File Format	HTM / HTML PDF
ISSN	20403364
Volume Number	7
Issue Number	19
Journal	Nanoscale
DOI	10.1039/c5nr00670h
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Carbon nanotube Ammonium Nanosheet Fluoride Hydrogen Partial current Tafel Crystal structure
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology

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