期刊
ACS APPLIED MATERIALS & INTERFACES
卷 7, 期 51, 页码 28116-28121出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b09447
关键词
single layer; tungsten disulfide; hydrogen evolution reaction; electrocatalyst; hollow carbon nanofiber
资金
- Korea CCS R&D Center (KCRC) - Korean government (Ministry of Science, ICT & Future Planning) [NRF-2014M1A8A1049303]
To exploit the benefits of nanostructuring for enhanced hydrogen evolution reaction (HER), we employed coaxial electrospinning to synthesize single-layered WS2 nanoplates anchored to hollow nitrogen-doped carbon nanofibers (WS2@HNCNFs) as efficient electrocatalysts. For comparison, bulk WS2 powder and single layers of WS2 embedded in nitrogen-doped carbon nanofibers (WS2@NCNFs) were synthesized and electrochemically tested. The distinctive design of the WS2@HNCNEs enables remarkable electrochemical performances showing a low overpotential with reduced charge transfer resistance, a small Tafel slope, and excellent durability. The experimental results highlight the importance of nanostructure engineering in electrocatalysts for enhanced HER.
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