Supercapacitor performance of porous carbon nanofiber composites prepared by electrospinning polymethylhydrosiloxane (PMHS)/polyacrylonitrile (PAN) blend solutions

作者：Kim Bo Hye; Yang Kap Seung^*; Woo Hee Gweon; Oshida Kyoichi

来源：Synthetic Metals, 2011, 161(13-14): 1211-1216.

DOI：10.1016/j.synthmet.2011.04.005

• Porous carbon nanofiber composites
• Electrospinning
• Polymethylhydrosiloxane
• Silica
• Supercapacitor

Porous carbon nanofiber composites (NFCs) were prepared by electrospinning blended solutions of polyacrylonitrile (PAN) and polymethylhydrosiloxane (PMHS) in N,N-dimethylformamide (DMF). A PMHS concentration of 5 wt% was regarded as the optimum concentration to obtain fibers of a uniform size with a homogeneous dispersion of silica, the maximum specific surface area and the highest conductivity (4.91 S cm(-1)) after heat treatment at 800 degrees C. The supercapacitor electrode prepared with 5 wt% PMHS had the highest specific capacitance, 126.86 F/g, and the highest energy density, 17.0-10.0 Wh/kg, in the range of 400-20,000 W/kg in a 6 M KOH aqueous solution.

• 出版日期2011-7