Preparation of highly porous activated carbons from peanut shells as low-cost electrode materials for supercapacitors

The synthesis of three-dimensional porous biomass carbons from the abundant peanut shells is investigated employing K2CO3, KCl, KOH, and NaOH as the activators for the application as low-cost electrode materials for supercapacitors. The results show that KCl-AC and K2CO3-AC are mainly composed of microporous structures, while KOH-AC and NaOH-AC show a well-developed porous structure consisting of both micropores and mesopores, and NaOH...