title: Nitrogen-doped porous carbon nanofiber webs as anodes for lithium ion batteries with a superhigh capacity and rate capability.
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.
authors.affiliation: State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, China.
authors.forename: Long
authors.initials: L
authors.lastname: Qie
authors.forename: Wei-Min
authors.initials: WM
authors.lastname: Chen
authors.forename: Zhao-Hui
authors.initials: ZH
authors.lastname: Wang
authors.forename: Qing-Guo
authors.initials: QG
authors.lastname: Shao
authors.forename: Xiang
authors.initials: X
authors.lastname: Li
authors.forename: Li-Xia
authors.initials: LX
authors.lastname: Yuan
authors.forename: Xian-Luo
authors.initials: XL
authors.lastname: Hu
authors.forename: Wu-Xing
authors.initials: WX
authors.lastname: Zhang
authors.forename: Yun-Hui
authors.initials: YH
authors.lastname: Huang
mesh_terms: D002244:Carbon / Q000737:chemistry*; D025802:Electric Capacitance; D011211:Electric Power Supplies; D004566:Electrodes; D008094:Lithium / Q000737:chemistry*; D057139:Nanofibers / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods*; D009584:Nitrogen / Q000737:chemistry*; D016062:Porosity; D013499:Surface Properties
chemical_list: D002244:Carbon; D008094:Lithium; D009584:Nitrogen