Synthesis and Characterization of Cobalt-Doped WS2 Nanorods for Lithium Battery Applications

被引:0
作者
Shiquan Wang
Guohua Li
Guodong Du
Li Li
Xueya Jiang
Chuanqi Feng
Zaiping Guo
Seungjoo Kim
机构
[1] Hubei University,Department of Chemistry
[2] Zhejiang University of Technology,State Key Laboratory Breeding Base of Green Chemistry
[3] University of Wollongong,Synthesis Technology
[4] Ajou University,School of Mechanical, Materials & Mechatronics, Institute for Superconducting & Electronic Materials, Faculty of Engineering
来源
Nanoscale Research Letters | / 5卷
关键词
Tungsten disulfide; Chemical synthesis; Electrochemical properties; Electrode materials; Hydrothermal method;
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摘要
Cobalt-doped tungsten disulfide nanorods were synthesized by an approach involving exfoliation, intercalation, and the hydrothermal process, using commercial WS2 powder as the precursor and n-butyllithium as the exfoliating reagent. XRD results indicate that the crystal phase of the sample is 2H-WS2. 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 WS2 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 WS2 nanorods show enhanced charge capacity and cycling stability compared with the raw WS2 powder.
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