Recently, it was a quite interesting that the N-doped graphene electrodes were by the radio frequency inductively coupled plasma for 0.25 h under the frequency of . The same procedure was repeated with pyrrole as the N-dopant. Electrochemical results illustrated that the capacitance of urea derived NRGO was found to about 359 F g -1 at 1 A g -1 in 6 M KOH aqueous solution which is considerably greater than that obtained from pyrrole (280 F g -1 ). This might be attributed to the fact that the nitrogen content of Urea derived NRGO is estimated to about 5.32 at. % which is higher than that obtained from pyrrole (4 at. %). Also, the SBET of urea derived NRGO (109.07 m 2 g -1 ) is higher than pyrrole derived NRGO (39.05 m 2 g -1 ). Further investigation from XPS revealed that the contribution of pyrrolic N from urea derived NRGO is higher compared to pyrrole derived NRGO. Inspiringly, the 98% of capacitance retained from its original value after 10000 cycles at 3 A g -1 for the urea derived . By using this method, the perilous reagents involved in the reduction of GO, the time taking freeze-drying, and template-removing involved for constructing 3D graphene can be minimized. The porous structure of graphene sheet can be effectively optimized by varying the thermal treatment temperature. The B-doped graphene was obtained by thermal annealing of freeze dried of the sample having the mixture of GO and boric acid at 800 °C for 30 minutes (BG-800) and got the highest specific capacitance of 281 F g -1 at 1 A g -1 in 2 M H2SO4 solution.