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Polyethylenimine functionalized mesoporous silica is a potential alternative of amine based absorption process for CO2 capture from flue gas. By impregnation of high molecular weight polyethylenimine (PEI) into three dimensional mesoporous KIT-6, a novel sorbent was prepared for highly CO2/N2 selective separation at moderate temperature and low partial pressure with high stability. TEM micrograph...
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