Heteroatom doped porous carbon materials have great application prospects in supercapacitors. In the present study, an approach of preparing N-doped porous carbon (NPC) was proposed from porous poly(resorcinol-formaldehyde-melamine) monoliths which were prepared by high internal phase emulsion (HIPE) template. Melamine was dissolved in the external phase and copolymerized, acting as the N source and porous structure regulator to provide micropore-dominant NPCs. The structure, morphology, specific surface area (SSA), and chemical composition of the samples were systematically studied. With melamine content increasing, N-doping content in NPC increased while the SSA of NPC increased at first and then decreased. When the content of N is 8.42 ​wt%, the obtained NPC showed the highest SSA of about 1670 ​m² ​g⁻¹. Furthermore, high N doping content could improve the electronic conductivity and provide additional pseudocapacitance of NPC. Under the combined influences of proper N content and high porosity, the prepared NPC electrodes revealed excellent specific capacitance (228.0 ​F ​g⁻¹ at 1.0 ​A ​g⁻¹), favorable circling stability, and prominent rate capability in a three-electrode system with 6 ​M KOH solution as the electrolyte.

杂原子掺杂的多孔碳材料在超级电容器中具有广阔的应用前景。在本研究中，提出了一种由高内相乳液（HIPE）模板制备的多孔聚（间苯二酚-甲醛-三聚氰胺）整体材料制备N掺杂多孔碳（NPC）的方法。将三聚氰胺溶解在外相中并进行共聚，充当氮源和多孔结构调节剂，提供以微孔为主的NPC。系统地研究了样品的结构，形态，比表面积（SSA）和化学成分。随着三聚氰胺含量的增加，NPC中的N掺杂含量增加，而NPC的SSA则先升高然后降低。当N含量为8.42 wt％时，所得NPC的最高SSA约为1670 m ²  g^-1。此外，高N掺杂含量可以改善电子电导率并提供NPC的附加伪电容。下的适当的N含量和高孔隙率组合的影响，制得的NPC电极显示了优异的比电容（228.0 F G ^-1 1.0 A G ^-1在三），有利盘旋稳定性，和突出速率能力电极系统，以6 M KOH溶液为电解质。