Nitrogen-doped porous carbon nanofiber webs as anodes for lithium ion batteries with a superhigh capacity and rate capability

Adv Mater. 2012 Apr 17;24(15):2047-50. doi: 10.1002/adma.201104634. Epub 2012 Mar 16.

Abstract

Nitrogen-doped carbon nanofiber webs (CNFWs) with high surface areas are successfully prepared by carbonization-activation of polypyrrole nanofiber webs with KOH. The as-obtained CNFWs exhibit a superhigh reversible capacity of 943 mAh g(-1) at a current density of 2 A g(-1) even after 600 cycles, which is ascribed to the novel porous nanostructure and high-level nitrogen doping.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Carbon / chemistry*
  • Electric Capacitance
  • Electric Power Supplies*
  • Electrodes
  • Lithium / chemistry*
  • Nanofibers / chemistry*
  • Nanotechnology / methods*
  • Nitrogen / chemistry*
  • Porosity
  • Surface Properties

Substances

  • Carbon
  • Lithium
  • Nitrogen