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Creators/Authors contains: "Reddy Arava, Leela Mohana"

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  1. ; ; ; ; ; (, Biosensors and Bioelectronics)
    null (Ed.)
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  2. ; ; (, Nano Letters)
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  3. ; ; ; (, Sustainable Energy & Fuels)
    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. 
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