期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 55, 期 22, 页码 6502-6505出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201600686
关键词
electrocatalysis; hydrogen-evolution reaction; molybdenum disulfides; nanoframes
资金
- National Natural Science Foundation of China [21475007, 21275015]
Increasing the active edge sites of molybdenum disulfide (MoS2) is an efficient strategy to improve the overall activity of MoS2 for the hydrogen-evolution reaction (HER). Herein, we report a strategy to synthesize the ultrasmall donut-shaped Cu7S4@MoS2 hetero-nanoframes with abundant active MoS2 edge sites as alternatives to platinum (Pt) as efficient HER electrocatalysts. These nanoframes demonstrate an ultra-high activity with 200 mAcm(-2) current density at only 206 mV overpotential using a carbon-rod counter electrode. The finding may provide guidelines for the design and synthesis of efficient and non-precious chalcogenide nanoframe catalysts.
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