Monolithic electrode for electric double-layer capacitors based on macro/meso/microporous S-Containing activated carbon with high surface area

Abstract

Macro/meso/microporous carbon monoliths doped with sulfur have been prepared from sulfonated poly(divinylbenzene) networks followed by the activation with CO₂ resulted in the activated carbon monoliths with high surface area of 2400 m² g⁻¹. The monolithic electrode of the activated carbon shows remarkably high specific capacitance (175 F g⁻¹ at 5 mV s⁻¹ and 206 F g⁻¹ at 0.5 A g⁻¹).