Abstract
Though the transition-metal dichalcogenides (TMDs) were proven to have a better performance on the hydrogen evolution reaction (HER), the bulk production of active TMD materials remains a challenging work. This report overcomes those barriers by showing a simple procedure to synthesize TaS2 nanosheets through modifying the arc discharge process. The usage of chloride as the transporting agent reduces the growth period of the formed TaS2 with active edge sites. TaS2 is found to have a uniform thickness (4 nm) with high crystallinity and adopt a 2H polytype (double-layered hexagonal) structure. The as-synthesized TaS2 has superior activity for HER with the potential of 280 mV.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China (Grant Nos. 21576289 and 21322609), the Science Foundation Research Funds Provided to New Recruitments of China University of Petroleum, Beijing (2462014QZDX01) and the Thousand Talents Program.
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Raj, I., Duan, Y., Kigen, D. et al. Catalytically enhanced thin and uniform TaS2 nanosheets for hydrogen evolution reaction. Front. Mater. Sci. 12, 239–246 (2018). https://doi.org/10.1007/s11706-018-0425-0
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DOI: https://doi.org/10.1007/s11706-018-0425-0