title: Quest for anionic MOF membranes: continuous sod-ZMOF membrane with CO2 adsorption-driven selectivity.
abstract: We report the fabrication of the first continuous zeolite-like metal-organic framework (ZMOF) thin-film membrane. A pure phase sod-ZMOF, sodalite topology, membrane was grown and supported on a porous alumina substrate using a solvothermal crystallization method. The absence of pinhole defects in the film was confirmed and supported by the occurrence of quantifiable time-lags, for all studied gases, during constant volume/variable pressure permeation tests. For both pure and mixed gas feeds, the sod-ZMOF-1 membrane exhibits favorable permeation selectivity toward carbon dioxide over relevant industrial gases such as H2, N2, and CH4, and it is mainly governed by favorable CO2 adsorption.
authors.affiliation: Functional Materials Design, Discovery & Development Research Group (FMD3), Advanced Membranes & Porous Materials Center (AMPMC), Division of Physical Sciences and Engineering (PSE), 4700 King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia.
authors.forename: Bassem A
authors.initials: BA
authors.lastname: Al-Maythalony
authors.forename: Osama
authors.initials: O
authors.lastname: Shekhah
authors.forename: Raja
authors.initials: R
authors.lastname: Swaidan
authors.forename: Youssef
authors.initials: Y
authors.lastname: Belmabkhout
authors.forename: Ingo
authors.initials: I
authors.lastname: Pinnau
authors.forename: Mohamed
authors.initials: M
authors.lastname: Eddaoudi