Table 2. Specific capacitances from GCD at different current densities

Current density (Ag−1)	Specific capacitance (Csp) (Fg−1)
	Pr-AC-electrode	1:1	1:2	2:1
1	59.02	82.42	49.04	102.22
2	51.38	68.08	41.73	82.76
3	47.69	62.27	39.23	74.62
5	43.37	55.85	36.43	65.99
10	37.74	48.78	35.41	55.73
15	34.76	45.42	34.01	50.20
20	33.30	43.85	33.63	47.17

Pr-AC: prepared activated carbon.