Journal
MATERIALS LETTERS
Volume 261, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2019.126987
Keywords
Molybdenum carbide; Carbide; Nanosheets; Catalysis; HER; Hydrogen evolution
Funding
- Toyota Research Institute through the Accelerated Materials Design and Discovery program, United States
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A method was developed for the synthesis of multi-layered and single-layered molybdenum carbide (beta-Mo2C) nanosheets through exfoliation and centrifugation of a layered oxide precursor. The single-layer materials displayed higher intrinsic activity for the hydrogen evolution reaction (59.3 +/- 6 mA/mg vs 5.3 +/- 2 mA/mg) compared to the multi-layered carbide nanosheets. This effect was attributed both to high surface areas and to a more reactive surface where the binding energy of *H is optimized for the HER. (C) 2019 Elsevier B.V. All rights reserved.
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