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

Table 3

EDX analysis of AC samples.

Sample	Mass percentage
	C	O	Si	Cl	Cr	Fe	Total
RH-K1N2	94.67	5.13	0	0.09	0.05	0.06	100
RH-K1.5N2	95.23	4.54	0.08	0.04	0.06	0.05	100
RH-K2N1	94.91	4.92	0.07	—	0.04	0.06	100
RH-K2N1.5	94.38	5.35	0.09	0.08	0.05	0.05	100
RH-K2N2	94.79	5.09	—	—	0.06	0.06	100