| 초록 |
In this report, a series of porous activated carbon nanofibers (APCNFs) electrodes were successfully fabricated through electrospinning, activation and carbonization, and KOH activation at various temperatures. The activation temperature had a significant effect on the pore structure, surface area, and electrochemical activities of the fabricated materials. Upon increasing activation temperature, the volume and areas of the micro and meso-pores increased and the dominant micro/meso-pores play significant role in improving overall electrochemical performances. At an optimum temperature (1000 °C), APCNFs possessed high specific capacitance of 103.01 F/g, excellent rate capability, and pronounced cyclic durability after 3000 GCD cycles in neutral electrolytes. The enhanced electrochemical performance of APCNFs possibly due to the high surface area, suitable pore sixe, pore volumes which facilitated proper movement of electrolyte ions |
