Acta Phys. -Chim. Sin. ›› 2010, Vol. 26 ›› Issue (12): 3169-3174.doi: 10.3866/PKU.WHXB20101203

• ELECTROCHEMISTRY • Previous Articles     Next Articles

Preparation of Porous Carbon Nanofibers by Electrospinning and Their Electrochemical Capacitive Behavior

ZHANG Xiao-Bo1, CHEN Ming-Hai3, ZHANG Xiao-Gang2, LI Qing-Wen3   

  1. 1. College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, P. R. China;
    2. College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China;
    3. Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215123, Jiangsu Province, P. R. China
  • Received:2010-07-01 Revised:2010-09-29 Published:2010-12-01
  • Contact: ZHANG Xiao-Gang, LI Qing-Wen E-mail:azhangxg@163.com, qwli2007@sinano.ac.cn
  • Supported by:

    The project was supported by the National Key Basic Research Program of China (973) (2007CB209703) and National Natural Science Foundation of China (20633040, 20873064).

Abstract:

Zinc acetate/polyacrylonitrile nanofibers were prepared by an electrospinning method. The as-prepared nanofibers were carbonized under argon and washed with acid to obtain porous carbon nanofibers. The surface morphology and microstructure of the porous carbon nanofibers were examined by scanning electron microscopy and X-ray diffraction. The surface area was found to be 413 m2·g-1 by the Brunauer-Emmett-Teller (BET) method. The electrochemical performance of the electrodes was characterized by cyclic voltammetry and by chronopotentiogram tests. The results showed that the specific capacitance of the as-repapered carbon porous nanofiber electrode was 275 F·g-1 under 1 A·g-1, which is 162% higher than that of the carbon nanofibers without a porous structure.

Key words: Supercapacitor, Electrospinning, Porous carbon nanofiber

MSC2000: 

  • O646