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Journal of Nanomaterials
Volume 2016, Article ID 4305437, 7 pages
Research Article

Free-Standing Porous Carbon Nanofiber Networks from Electrospinning Polyimide for Supercapacitors

1Department of Electrical Engineering and Automation, Luoyang Institute of Science and Technology, Luoyang 471023, China
2Laboratory of Optical Information Technology, School of Science, Wuhan Institute of Technology, Wuhan 430205, China
3School of Electrical Information and Engineering, Jiangsu University of Technology, Changzhou 213001, China

Received 23 May 2016; Revised 16 August 2016; Accepted 6 September 2016

Academic Editor: Santanu Das

Copyright © 2016 Bo Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Free-standing porous carbon nanofiber networks (CFNs) were synthesized by electrospinning method and carbonization procedure. We study the implementation of porous CFNs as supercapacitor electrodes and electrochemical measurements demonstrated that porous CFNs exhibit a specific capacitance (205 F/g at the scan rate of 5 mV/s) with high flexibility and good rate capability performance (more than 70% of its initial capacitance from 5 mV/s to 200 mV/s). Furthermore, porous CFNs exhibited an excellent cycling stability (just 12% capacitance loss after 10,000 cycles). These results suggest that porous CFNs are very promising candidates as flexible supercapacitor electrodes.