Superior CO2 Adsorption Capacity on N-doped, High-Surface-Area, Microporous Carbons Templated from Zeolite

Zeolite-templated, high-surface-area, microporous, N-doped carbons exhibit the highest CO2 uptake capacity recorded to date for any carbon material and one of the highest for any inorganic or organic porous material of up to 6.9 mmol g(-1) at 273 K and ambient pressure and 4.4 mmol g(-1) at ambient temperature and pressure, along with an initial CO2 adsorption energy of 36 kJ mol(-1) at lower coverage and 20 kJ mol(-1) at higher CO2 coverage. Combined with their ease of preparation, excellent recyclability and regeneration stability, and high selectivity for CO2, the N-doped zeolite-templated carbons are amongst the most promising solid-state absorbents reported so far for CO2 capture and storage.