Mechanochemical synthesis of carbon-based nanocomposites for supercapacitors

Abstract

Abstract. New nanoporous carbon-SiO 2 composite materials were synthesized from organic raw materials (rice shells) and their electrochemical properties were investigated by cyclic voltammetry in liquid electrolytes (6 M KOH or 1 M H 2 SO 4 ). A correlation between specific capacitance and specific surface area was observed. Due to high specific capacitance of 90 F/g the carbon materials under study may be regarded as promising electrode materials for electrochemical supercapacitors.