Ultrahigh CO2adsorption capacity on carbon molecular sieves at room temperature

Abstract

Although metal–organic framework (MOF) materials have been postulated as superior to any other sorbent for CO₂ adsorption at room temperature, here we prove that the appropriate selection of the raw material and the synthesis conditions allows the preparation of carbon molecular sieves (CMSs) with adsorption capacity, on a volumetric basis, highly exceeding those reported in the literature for MOFs. Furthermore, the excellent sorption properties of CMSs over the whole pressure range (up to 50 bar) are fully reversible after different adsorption/desorption cycles.