Fine pore engineering in a series of isoreticular metal-organic frameworks for efficient C₂H₂/CO₂ separation.

ABSTRACT: The separation of C₂H₂/CO₂ is not only industrially important for acetylene purification but also scientifically challenging owing to their high similarities in physical properties and molecular sizes. Ultramicroporous metal-organic frameworks (MOFs) can exhibit a pore confinement effect to differentiate gas molecules of similar size. Herein, we report the fine-tuning of pore sizes in sub-nanometer scale on a series of isoreticular MOFs that can realize highly efficient C₂H₂/CO₂ separation. The subtle structural differences lead to remarkable adsorption performances enhancement. Among four MOF analogs, by integrating appropriate pore size and specific binding sites, [Cu(dps)₂(SiF₆)] (SIFSIX-dps-Cu, SIFS

SUBMITTER: Wang J 

PROVIDER: S-EPMC8752597 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature