4.3 Article

Catalytically enhanced thin and uniform TaS2 nanosheets for hydrogen evolution reaction

Journal

FRONTIERS OF MATERIALS SCIENCE
Volume 12, Issue 3, Pages 239-246

Publisher

HIGHER EDUCATION PRESS
DOI: 10.1007/s11706-018-0425-0

Keywords

hydrogen evolution reaction; TaS2 nanosheets; arc disharge; active edge sites

Funding

  1. National Natural Science Foundation of China [21576289, 21322609]
  2. China University of Petroleum, Beijing [2462014QZDX01]
  3. Thousand Talents Program

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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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