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Enhanced Electrocatalysis for Hydrogen Evolution Reactions from WS 2 Nanoribbons
Author(s) -
Lin Jian,
Peng Zhiwei,
Wang Gunuk,
Zakhidov Dante,
Larios Eduardo,
Yacaman Miguel Jose,
Tour James M.
Publication year - 2014
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201301875
Subject(s) - electrocatalyst , materials science , electrochemistry , nanotechnology , enhanced data rates for gsm evolution , water splitting , chemical engineering , hydrogen , catalysis , electrode , chemistry , computer science , organic chemistry , telecommunications , photocatalysis , engineering
A facile route is developed to boost the electrocatalytic activity of WS 2 by chemically unzipping WS 2 nanotubes to form WS 2 nanoribbons (NRs) with increased edge content. Analysis indicates that the hydrogen evolution reaction activity is strongly associated with the number of exposed active edge sites. The formation of WS 2 NRs is an effective route for controlling the electrochemical properties of the 2D dichalcogenides, enabling their application in electrocatalysis.