Rational Design of Efficient Electrocatalysts for Hydrogen Evolution Reaction: Single Layers of WS2 Nanoplates Anchored to Hollow Nitrogen-Doped Carbon Nanofibers

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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.
Publisher
AMER CHEMICAL SOC
Issue Date
2015-12
Language
English
Article Type
Article
Keywords

TRANSITION-METAL DICHALCOGENIDES; ACTIVE-SITES; MOS2; PERFORMANCE; NANOMATERIALS; CATALYST; LITHIUM

Citation

ACS APPLIED MATERIALS INTERFACES, v.7, no.51, pp.28116 - 28121

ISSN
1944-8244
DOI
10.1021/acsami.5b09447
URI
http://hdl.handle.net/10203/208047
Appears in Collection
EEW-Journal Papers(저널논문)MS-Journal Papers(저널논문)
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