Preparation and Electrochemical Properties of MoS2/C Hollow Microspheres

被引:0
|
作者
Yin P. [1 ]
Wang Z. [1 ]
Yang H. [1 ]
Guo X. [1 ]
机构
[1] School of Materials Science and Engineering, Zhejiang University, Hangzhou
关键词
Carbon; Hollow microspheres; Lithium-ion battery; Molybdenum disulfide;
D O I
10.14062/j.issn.0454-5648.2017.11.15
中图分类号
学科分类号
摘要
MoS2 and carbon (C) were firstly formed on the surface of SiO2 nanoparticles prepared by sol-gel method as sacrificial template with hexadecyltrimethylammonium bromide (CTAB), and then molybdenum disulfide/carbon hollow microspheres were prepared by alkali liquor etching silica microsphere matrix microspheres. The products were characterized, and the electrochemical properties of the products as electrode materials were investigated by constant current charging and discharging, magnification performance, cyclic voltammetry and AC impedance testing. The results show that the size of as-prepared MoS2/C hollow microspheres is approxinmately 200-300 nm, and its surface is wrapped with petaloid MoS2 lamellae and amorphous carbon. As a lithium battery anode material, the resultant product shows the first charge and discharge capacity of more than 1 400 mA·h/g at a current density of 100 mA/g, and the capacity can still maintain 460 mA·h/g after 60 cycles. © 2017, Editorial Department of Journal of the Chinese Ceramic Society. All right reserved.
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页码:1665 / 1672
页数:7
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共 24 条
  • [1] Whittingham M.S., Lithium batteries and cathode materials, Chem Inform, 35, pp. 4271-4301, (2004)
  • [2] Yoshino A., The birth of the lithium-ion battery, Angew Chem Int Ed, 51, pp. 5798-5800, (2012)
  • [3] Matte H.S., Gomathi A., Manna A.K., Et al., MoS<sub>2</sub> and WS<sub>2</sub> analogues of grapheme, Angew Chem Int Ed, 49, pp. 4059-4062, (2010)
  • [4] Radisavljevic B., Radenovic A., Brivio J., Single-layer MoS<sub>2</sub> transistors, Nat Nanotechnol, 6, pp. 147-150, (2011)
  • [5] Yin Z., Li H., Jiang L., Et al., Single-Layer MoS<sub>2</sub> phototransistors, Acs Nano, 6, pp. 74-80, (2012)
  • [6] Guo X., Wang Z., Zhu W., Et al., The novel and facile preparation of multilayer MoS<sub>2</sub> crystals by a chelation-assisted sol-gel method and their electrochemical performance, RSC Adv, 7, pp. 9009-9014, (2017)
  • [7] Chang K., Chen W., Single-layer MoS<sub>2</sub>/grapheme dispersed in amorphous carbon: towards high electrochemical performances in rechargeable lithium ion batteries, J Mater Chem, 21, pp. 17175-17184, (2011)
  • [8] Xu X., Fan Z., Ding S., Et al., Fabrication of MoS<sub>2</sub> nanosheet@TiO<sub>2</sub> nanotube hybrid nanostructures for lithium storage, Nanoscale, 6, pp. 5245-5250, (2014)
  • [9] Deng Z., Hu Y., Ren D., Et al., Reciprocal hybridization of MoO<sub>2</sub> nanoparticles and few-layer MoS<sub>2</sub> for stable lithium-ion batteries, Chemical Communications, 51, pp. 13838-13841, (2015)
  • [10] Yin Z., Li H., Li H., Et al., Single-Layer MoS2 Phototransistors, Acs Nano, 6, pp. 74-80, (2012)