Significantly boosting the energy storage capacity of N-doped graphene by non-covalent modification of fused heterocyclic small molecules

The effect of different substituents of indoles on the performance of functionalized GN was explored. The as-obtained 5-AIFGN had a high specific capacitance of 831.5 F g⁻¹. 5-AIFGN//5-AIFGN exhibited a high energy density of 43.4 W h kg⁻¹ at a power density of 800 W kg⁻¹.