Activated Carbon Nanocomposite for Supercapacitor Electrodes

Abstract

Activated carbon (AC) with high surface area has been used in supercapacitors extensively, but it has limited capacitance value due to the low electrical conductivity. In this study, we concern to find the best conductive agent by incorporate different conductive agent such as carbon black (CB), carbon nanotubes (CNT), and reduced graphene oxide (RGO). As a result, the AC/CB possess the highest specific capacitance of 62 F/g and excellent ESR of 2.40 . This might due to the excellent connectivity of AC and CB particle as seen from SEM image. On contrary, CNT and RGO have agglomeration that impact on resistance and capacitance.