Tailoring the separation properties of flexible metal-organic frameworks using mechanical pressure.

ABSTRACT: Metal-organic frameworks are widely considered for the separation of chemical mixtures due to their adjustable physical and chemical properties. However, while much effort is currently devoted to developing new adsorbents for a given separation, an ideal scenario would involve a single adsorbent for multiple separations. Porous materials exhibiting framework flexibility offer unique opportunities to tune these properties since the pore size and shape can be controlled by the application of external stimuli. Here, we establish a proof-of-concept for the molecular sieving separation of species with similar sizes (CO₂/N₂ and CO₂/CH₄), via precise mechanical control of the pore size aperture in a flexible metal-organic framework. Besides its infinite

SUBMITTER: Chanut N 

PROVIDER: S-EPMC7058087 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature