NDLI: Facile Synthesis of N-Doped $WS_{2}$ Nanosheets as an Efficient and Stable Electrocatalyst for Hydrogen Evolution Reaction in Acidic Media

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Facile Synthesis of N-Doped $WS_{2}$ Nanosheets as an Efficient and Stable Electrocatalyst for Hydrogen Evolution Reaction in Acidic Media

Content Provider	MDPI
Author	Nayak, Arpan Kumar Enhtuwshin, Enhbayar Kim, So Jung Han, Hyuksu
Copyright Year	2020
Description	Transition metal chalcogenides have been widely studied as a promising electrocatalyst for the hydrogen evolution reaction (HER) in acidic conditions. Among various transition metal chalcogenides, tungsten disulfide (WS2) is a distinguishable candidate due to abundant active sites and good electrical properties. Herein, we report a facile and selective synthetic method to synthesize WS2 with an intriguing two-dimensional nanostructure by using cysteine (C3H7NO2S) as a chemical agent. In addition, nitrogen can be incorporated during chemical synthesis from cysteine, which may be helpful for enhancing the HER. The electrocatalytic activity of N-doped WS2 exhibits a promising HER in acidic conditions, which are not only higher than W18O49 nanowires and hex-WO3 nanowires, but also comparable to the benchmark Pt/C. Moreover, excellent electrocatalytic stability is also demonstrated for acidic HER during long-term tests, thus highlighting its potential use of practical applications as an electrolyzer.
Starting Page	1238
e-ISSN	20734344
DOI	10.3390/catal10111238
Journal	Catalysts
Issue Number	11
Volume Number	10
Language	English
Publisher	MDPI
Publisher Date	2020-10-26
Access Restriction	Open
Subject Keyword	Catalysts Inorganic Chemistry Water Splitting Hydrogen Evolution Reaction Electrocatalyst Tungsten Sulfide
Content Type	Text
Resource Type	Article

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