Bifunctional HNO3 catalytic synthesis of N-doped porous carbons for CO2 capture

摘要: N-doped porous carbons have been successfully fabricated via a facile one-pot evaporation induced self-assembly (EISA) method under acidic conditions. In this process, the used HNO3 not only promoted polymerization as catalyst, but also served nitrogen source. The as-resulted possessed high specific surface area and content (up to 6.73 wt%) consequently they exhibited excellent CO2 capture performance. Particularly, CN-950 sample with of 1979 m2 g−1 shows highest adsorption capacity 4.30 mmol at 298 K 1 atm. Furthermore, it was observed that selectivity for CO2/N2 separation, which is promising industrial production.