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

Abstract EN

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.