Molecular-Sieve Membrane with Hydrogen Permselectivity: ZIF-22 in LTA Topology Prepared with 3-Aminopropyltriethoxysilane as Covalent Linker

摘要

Microporous metal-organic frameworks (MOFs) have attracted intense interest due to their potential applications for gas adsorption and storage, molecular separation, and catalysis. To date, research has mainly been directed towards the synthesis of novel MOF structures through assembly of molecular building blocks to construct tailored frameworks with tunable sizes, morphologies, structures, and desired properties. On the other hand, their highly diverse structures and pore size, as well as large surface areas and specific adsorption affinities, make MOFs candidates for fabrication of superior molecular sieve membranes for gas separation. Therefore, a great deal of research has focused on the preparation of supported MOF membranes.