Quest for Anionic MOF Membranes: Continuous sod-ZMOF Membrane with CO2 Adsorption-Driven Selectivity

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 th...

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Bibliographic Details
Published in:Journal of the American Chemical Society 2015-02, Vol.137 (5), p.1754-1757
Main Authors: Al-Maythalony, Bassem A, Shekhah, Osama, Swaidan, Raja, Belmabkhout, Youssef, Pinnau, Ingo, Eddaoudi, Mohamed
Format: Article
Language:English
Online Access:Get full text
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Summary: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.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja511495j