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Functionalized flexible MOFs as fillers in mixed matrix membranes for highly selective separation of CO2 from CH4 at elevated pressures

2011; Royal Society of Chemistry; Volume: 47; Issue: 33 Linguagem: Inglês

10.1039/c1cc13431k

1364-548X

Beatriz Zornoza, Alberto Martinez‐Joaristi, Pablo Serra‐Crespo, Carlos Téllez, Joaquı́n Coronas, Jorge Gascón, Freek Kapteijn,

Inorganic Fluorides and Related Compounds

Mixed matrix membranes (MMMs) composed of a glassy polymer (polysulfone) and the flexible metal organic framework NH(2)-MIL-53(Al) exhibit excellent separation properties. In contrast to most reported membranes, CO(2)/CH(4) separation selectivity increases with pressure, related to the flexibility of the filler.