Abstract
Herein, a novel activated hollow carbon nanospheres (AHCNSs) with enlarged specific surface area (SSA) of 1796 m2ú g-1and pore volume (Vp) of 1.33 cm3ú g-1was synthesized from poly(aniline-co-pyrrole) hollow nanospheres via KOH activation method. The supercapacitor containing AHCNSs displayed high gravimetric capacitance (Cg) of 290 F ú g-1at 1 Aú g-1and 79% capacitance retention even at 20 Aú g-1in ionic liquid EMIMBF4, indicating its excellent rate capability. This study highlights the potential value of novel hollow structure activated carbon in the field of energy storage.
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