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Title: Facile synthesis of electrocatalytically active NbS 2 nanoflakes for an enhanced hydrogen evolution reaction (HER)
We report a simple ambient pressure annealing technique for the synthesis of ultrathin niobium disulfide (NbS 2 ) nanoflakes. The structure, morphology and composition of the as-synthesized NbS 2 flakes are well characterized using various microscopic and spectroscopic techniques. The synthesized two-dimensional layered NbS 2 is in stoichiometric proportion, and has a single crystal 3R-NbS 2 polymorph structure with semiconducting behavior and has abundant catalytic defect sites. In this paper, the hydrogen evolution reaction (HER) activity of the NbS 2 nanoflakes/rGO composite having dense exposed basal planes with improved conductivity is explored, and it is found to be a good HER catalyst in terms of low onset potential, low Tafel slope and high exchange current density.  more » « less
Award ID(s):
1748363
PAR ID:
10073286
Author(s) / Creator(s):
; ; ;
Date Published:
Journal Name:
Sustainable Energy & Fuels
Volume:
2
Issue:
1
ISSN:
2398-4902
Page Range / eLocation ID:
96 to 102
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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