Various amounts of a branched polyethylenimine are impregnated into a porous aromatic framework. PEI (40 wt%) ⊂ PAF-5 shows exceptionally high capacity and selectivity of CO2 adsorption at 313 K. The material also displays fast adsorption/desorption kinetics and low energy penalty for regeneration in addition to water stability.
S. Sung and M. P. Suh, J. Mater. Chem. A, 2014, 2, 13245 DOI: 10.1039/C4TA02861A
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