Synthesis of copolymerized porous organic frameworks with high gas storage capabilities at both high and low pressures

摘要

A series of copolymerized porous organic frameworks (C-POFs) were synthesized with monomers of tetrakis(4-bromophenyl)methane and tris(4-bromophenyl)amine in different ratios by a Yamamoto-type Ullmann cross-coupling reaction. These C-POFs exhibit high physico-chemical stability, large surface areas and excellent H_2 CH_4 and CO_2 adsorption properties both at low and high pressures.