New concept of N₂-phobicity for post-combustion CO₂ separation
Novel azo-linked covalent organic polymers were synthesized using a catalyst-free synthetic approach. Unlike any other porous materials, azo-polymers showed increasing CO₂/N₂ selectivity with rising temperature, mainly due to the entropic loss of N₂ gas molecules upon their interaction with azo-groups (N₂-phobicity), thereby leading to the...