Unprecedented CO2 uptake over highly porous N-doped activated carbon monoliths prepared by physical activation

Highly porous N-doped activated carbon monoliths (ACMs) are fabricated by carbonization and physical activation of mesoporous polyacrylonitrile (PAN) monoliths in the presence of CO2. The monoliths exhibit exceptionally high CO2 uptake; 5.14 mmol g−1 at ambient pressure and temperature and 11.51 mmol g−1 at ambient pressure and 273 K.