Zeolite-like metal-organic framework membrane
AssigneeKing Abdullah University of Science and Technology
InventorsMohamed Eddaoudi, Bassem A. Almaythalony, Osama Shekhah, Youssef Belmabkhout
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Abstract
Metal organic framework membranes can be used in gas separation applications.
Claims19
A thin film membrane comprising a substrate and a continuous zeolite-like metal-organic framework (ZMOF) thin film inter-grown on the substrate, wherein the thin film membrane has a selectivity for CO2 over H2.
A method for preparing a zeolite-like metal-organic framework membrane comprising:
- contacting one or more of a carboxylic acid, an imidazole or a pyrimidine, a metal salt, and a nitric acid to form a solution mixture;
- sonicating the solution mixture until the solution mixture is visibly clear;
- immersing a substrate in the solution mixture;
- and
- heating the immersed substrate and solution mixture at two or more temperatures sufficient to induce homogenous nucleation and form a continuous zeolite-like metal-organic framework thin film inter-grown on the substrate.
A method of separating gases comprising passing a mixture of gasses through a thin film membrane comprising a substrate and a continuous zeolite-like metal-organic framework (ZMOF) thin film inter-grown on the substrate, wherein the thin film membrane has a selectivity for CO2 over H2.
Dependencies are inferred from the claim text.