A 2D metal-organic framework composed of a bi-functional ligand with ultra-micropores for post-combustion CO2 capture

摘要

A two-dimensional (2D) metal-organic framework (MOF) named NUS-5 was synthesized using a bifunctional ligand 4-pyrazolecarboxylic acid (PyC) containing both carboxylate and pyrazole moieties. NUS-5 is composed of porous grids stacked together into a 2D layered structure exhibiting ultramicropores. It displays remarkable thermostability and excellent selectivity towards sorption of CO2 over N-2, making it a good material candidate for post-combustion CO2 capture.