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-champhorate-based 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 N₂ and H₂ 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.