Mesoporous nitrogen-doped carbon hollow spheres as high-performance anodes for lithium-ion batteries

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Kaifu Huo
  • Weili An
  • Jijiang Fu
  • Biao Gao
  • Lei Wang
  • Gary J. Cheng

Detail(s)

Original languageEnglish
Pages (from-to)233-238
Journal / PublicationJournal of Power Sources
Volume324
Online published26 May 2016
Publication statusPublished - 30 Aug 2016

Abstract

Nitrogen-doped mesoporous carbon hollow spheres (N-MCHSs) were prepared using mesoporous silica hollow spheres as template and dopamine as carbon precursor. The N-MCHSs demonstrate high specific surface area and vegetable sponge-like mesoporous shell with interconnected "carbon bridges", facilitating continuous electron transport and Li ion diffusion, and making the whole structure more stable. The influence of N contents and N-bonding configuration on the Li storage of N-MCHSs is discussed. The N-MCHSs carbonized at 800 ºC demonstrate high reversible capacity and excellent rate performance, delivering a capacity of 485 mAh g-1 at a current of 0.5 A g-1 after 1,100 cycles. Even up to 4.0 A g-1, a high capacity of 214 mAh g-1 can be remained. The high electrochemical performance of N-MCHSs can be ascribed to mesoporous carbon hollow spheres structure and high level pyridinic nitrogen doping.

Research Area(s)

  • Mesoporous shell, Nitrogen-doping, Carbon hollow spheres, Polydopamine, Anodes, Lithium ion batteries, ELECTROCHEMICAL ENERGY-STORAGE, METAL-ORGANIC FRAMEWORK, POROUS CARBON, RATE CAPABILITY, NANOFIBER WEBS, HIGH-CAPACITY, NANOTUBES, GRAPHENE, NANOSPHERES, SUPERCAPACITORS

Citation Format(s)

Mesoporous nitrogen-doped carbon hollow spheres as high-performance anodes for lithium-ion batteries. / Huo, Kaifu; An, Weili; Fu, Jijiang; Gao, Biao; Wang, Lei; Peng, Xiang; Cheng, Gary J.; Chu, Paul K.

In: Journal of Power Sources, Vol. 324, 30.08.2016, p. 233-238.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review