Abstract. The capacitive behavior of activated carbons with different pore structures in two kinds of electrolytes, Bu4NBF4 and Et4NBF4 in propylene carbonate (PC) was studied using three kinds of cell configuration. The correlations between adsorbed ion size and pore size on the positive and negative electrodes were investigated. The matching of pore size and cation size was more predomina…
Abstract. The positive and negative capacitance behaviors of heat-treated activated carbons are separately studied in a three-electrode configuration using 6 M KOH and 1 M H2SO4 as electrolytes. Heat treatment of activated carbons at 400–800 oC causes slight changes in surface area accompanied by a significant removal of oxygen-containing functional groups. Consequently, the specific sur…