Since, MC-2 had higher SBET, its electrochemical performance was studied in the organic electrolyte using ionic liquid EMIMBF4 electrolyte. The MC-2 electrode showed a high specific capacitance of 286.8 F g -1 at a current density of 0.25 A g -1 , and displayed a medium rate of 152.3 F g -1 at a high current density of 30 A g -1 , along with the capacitance retention of 4, 246.5, and 311.5 F g -1 at the current density of 1 A g -1 , respectively, and exhibited the capacitance retention of .8 % at high current density of 20 A g -1 . When B atoms were introduced along with dual-heteroatom doped carbon materials, the resulted NSBCP, and NFBCP electrodes showed the specific capacitance of 281.6, and 350.3 F g -1 at 1