Coupling of single-layered WS2 nanoplates with carbon nanofibers exhibiting extraordinary electrochemical performance as anodes for lithium ion batteries and electrocatalysts for hydrogen evolution단일층의 WS2 나노판과 탄소 나노섬유의 결착을 통한 리튬 이온 전지의 음극과 수소 발생 촉매로서 뛰어난 전기화학적 성능

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Transition metal dichalcogenides (TMDs) such as WS2 have drawn tremendous attention due to their fascinating physicochemical properties when they are single-layered or few-layered. Such attention can be ascribed to an interesting phenomenon that a reduction in the dimensionality leads to a variety of exotic characteristics which differ from those of their bulk material counterparts. Unfortunately, their poor intrinsic conductivities hamper their use in energy storage and conversion applications. In this regard, it is an efficient strategy to make a composite, combining single-layered TMDs with highly conductive materials. In this study, we report that single layers of WS2 nanoplates can be uniformly embedded in nitrogen-doped carbon nanofibers (WS2@NCNFs), and also can be anchored to hollow nitrogen-doped carbon nanofibers (WS2@HNCNFs) via electrospinning. These rationally designed materials were electrochemically tested as anode materials for lithium ion batteries and electrocatalysts for hydrogen evolution. The distinctive design of the materials enables outstanding electrochemical performances.
Publisher
한국세라믹학회
Issue Date
2015-11-06
Language
English
Citation

2015 한국세라믹학회 추계학술대회

URI
http://hdl.handle.net/10203/204741
Appears in Collection
MS-Conference Papers(학술회의논문)RIMS Conference Papers
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