Journal of Shanghai University(Natural Science Edition) ›› 2020, Vol. 26 ›› Issue (6): 972-979.doi: 10.12066/j.issn.1007-2861.2111

• Research Articles • Previous Articles     Next Articles

Composite of covalent organic framework-derived nitrogen-doped carbon with carbon nanotubes for lithium-storage

TANG Xuxu, YANG Qingsi, YANG Jianwei, SUN Weiwei()   

  1. School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
  • Received:2018-12-05 Online:2020-12-31 Published:2020-12-29
  • Contact: SUN Weiwei E-mail:vivisun@shu.edu.cn

Abstract:

The covalent organic framework, obtained by the facile room-temperature method, was selected as the precursor for fabricating the nitrogen-doped carbon/carbon nanotube composite (N-C-CNT), in with the nitrogen-doped carbon was derived directly from the covalent organic framework, while the carbon nanotubes were formed in situ from acetylene under catalysis by metallic cobalt. Due to N-doping, the carbon layer provides more active sites for lithium storage; therefore, the N-C-CNT composite exhibits high specific capacity and excellent cycle stability (reversible capacity of 652 mA·h·g-1 after300 cycles) as an anode material for lithium ion batteries.

Key words: covalent organic framework (COF), carbon nanotube, lithium-ion battery, anode materials, composite

CLC Number: