Preparation of Pore-Size Controllable Activated Carbon from Rice Husk Using Dual Activating Agent and Its Application in Supercapacitor

Table 1

AC samples prepared under various impregnation ratios.

Sample	Impregnation ratio KOH : NaOH : char (wt. ratio)
RH-K4N0	4 : 0 :1
RH-K0N3	0 : 3 : 1
RH-K1N2	1 : 2 : 1
RH-K1.5N2	1.5 : 2 : 1
RH-K2N2	2 : 2 : 1
RH-K2N1.5	2 : 1.5 : 1
RH-K2N1	2 : 1 : 1