Study on the structure and electrochemical performances of amphiphilic carbonaceous material-based porous carbon electrode materials

Abstract

Amphiphilic carbonaceous material was dissolved in the sodium acetate aqueous solution and the resulting liquid was used to synthesize the hierarchical porous carbons (HPCs) in which sodium acetate acted as chemical activation agent. Benefiting from the optimum balance between unique hierarchical porous network and high specific surface area (1389 m2 g−1) the optimal sample presented a remarkable capacity (221F g−1 at 0.05 A g−1) and outstanding cycling stability (only 4.5% loss of the initial capacitance after 10,000 cycles) in 6 mol L-1 KOH. The results provides the potential of developing amphiphilic carbonaceous material-based carbon electrode materials for high-performance supercapacitors.