Heteroatom-doped porous carbon exhibit promising potential as supercapacitor electrodes, but the tradeoff between specific surface area (SSA) and heteroatom-doped level limits its excellent performance. In this work, the activation coupled with doping strategy to synthesize the pitch-based porous carbon (PPC). Different from single activation method to prepare microporous carbon, the PPC prepared by the coupling method has a hierarchical porous structure and high SSA (2020 m