Alkyl-chain-grafted 13X zeolite for steady CO2 capture from humid flue gas

Abstract

13X zeolite shows potential for CO₂ capture, but its performance is diminished by the steam present in real-world flue gas. To overcome this limitation, a facile and efficient approach is to graft straight-chain alkyl groups to the 13X structure. Adsorbents with anchored alkyl groups exhibit both high CO₂ uptake and excellent resistance to humidity.