Gate-opening upon CO2 adsorption on a metal-organic framework that mimics a natural stimuli-response system

Abstract

A dynamic metal-organic framework that consists of D-champhoratebased homochiral protuberant-grid-type networks can successively participate in gate-opening and closing processes for many cycles, which were triggered by the stimuli of the adsorption and desorption of CO2 to highly and specifically recognize CO2 over N-2 and H-2 with a high CO2 uptake of 90 mg g(-1) under 35 bar at 298 K. It is highly thermally stable and the structure remains intact at least for ten reversible gate-opening and - closing processes. Thus, it is a potential candidate for industrial CO2 capture and facile release.