Journal
CHEMICAL COMMUNICATIONS
Volume 56, Issue 93, Pages 14701-14704Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0cc05888b
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Funding
- National Natural Science Foundation of China [21773216, 51173170, 11774078]
- Innovation Talents Award of Henan Province [114200510019]
- Key Program of Science and Technology from the Zhengzhou Bureau of Science and Technology [121PZDGG213]
- centre for modern analysis and computation of Zhengzhou University
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Cost-effective and durable electrocatalysts for the alkaline hydrogen evolution reaction (HER) are urgently required. The slow HER kinetics suppressed by water dissociation hinder the application of catalysts in alkaline media. Herein, we constructed an amorphous heterostructure that combined amorphous-MoO3-x (A-MoO3-x) and MoS2 by in situ oxidizing amorphization of S-vacancy MoS2. The optimal A-MoO3-x/MoS2 catalyst exhibited a competitive HER overpotential of -146 mV at eta = -10 mA cm(-2). DFT calculations indicate that A-MoO3-x can reduce the energy barriers of water dissociation and H-2 formation, and the heterointerfaces can facilitate charge transfer.
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