Synthesis and Characterization of Cobalt-Doped WS(2) Nanorods for Lithium Battery Applications

Cobalt-doped tungsten disulfide nanorods were synthesized by an approach involving exfoliation, intercalation, and the hydrothermal process, using commercial WS(2) powder as the precursor and n-butyllithium as the exfoliating reagent. XRD results indicate that the crystal phase of the sample is 2H-W...

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Detalles Bibliográficos
Autores principales: Wang, Shiquan, Li, Guohua, Du, Guodong, Li, Li, Jiang, Xueya, Feng, Chuanqi, Guo, Zaiping, Kim, Seungjoo
Formato: Texto
Lenguaje:English
Publicado: Springer 2010
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2897044/
https://www.ncbi.nlm.nih.gov/pubmed/20676209
http://dx.doi.org/10.1007/s11671-010-9642-x
Descripción
Sumario:Cobalt-doped tungsten disulfide nanorods were synthesized by an approach involving exfoliation, intercalation, and the hydrothermal process, using commercial WS(2) powder as the precursor and n-butyllithium as the exfoliating reagent. XRD results indicate that the crystal phase of the sample is 2H-WS(2). TEM images show that the sample consists of bamboo-like nanorods with a diameter of around 20 nm and a length of about 200 nm. The Co-doped WS(2) nanorods exhibit the reversible capacity of 568 mAh g(−1) in a voltage range of 0.01–3.0 V versus Li/Li(+). As an electrode material for the lithium battery, the Co-doped WS(2) nanorods show enhanced charge capacity and cycling stability compared with the raw WS(2) powder.

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