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dc.contributor.authorCacho-Bailo, Fernando
dc.contributor.authorCaro, Guillermo
dc.contributor.authorEtxeberria-Benavides, Miren
dc.contributor.authorKarvan, Oguz
dc.contributor.authorTellez, Carlos
dc.contributor.authorCoronas, Joaquin
dc.date.accessioned2016-06-06T14:04:30Z
dc.date.available2016-06-06T14:04:30Z
dc.date.issued2016
dc.identifier.citationRSC ADVANCES, Vol. 6 (2016), pp. 5881-5889en
dc.identifier.issn2046-2069en
dc.identifier.urihttp://hdl.handle.net/11556/238
dc.description.abstractThermal annealing, a commonly used procedure for improving the performance of polymeric membranes, is in this work exploited in the presence of a metal-organic framework (MOF) supported layer. MOFs and polymers are materials with a common organic character, suggesting an enhanced affinity between them when used together in membrane separation. Zeolite-like imidazolate frameworks (ZIFs) ZIF-8 and ZIF-93 with sod and rho structures and pore apertures of 0.34 and 0.36 nm, respectively, have been grown inside 356 mm OD co-polyimide P84 hollow fibers by microfluidics, leading to continuous supported membranes. When these membranes were thermally in situ annealed below the glass transition temperature, while monitoring both H-2 and CH4 permeances, the MOF-polymer adhesion was enhanced. Thus the gas separation selectivity increased without any significant reduction in the gas permeance, and H-2/CH4 and CO2/CH4 maximum selectivities of 103 and 18 (ZIF-8) and 101 and 20 (ZIF93) were respectively measured. The good compatibility between MOF and polymer made improvements possible in the annealing of the membrane once it was prepared. If the annealing of the polymer was carried out before the MOF synthesis, the polymer chain rearrangement and surface smoothing prevented an optimum MOF-polymer interaction and the separation performance worsened. These results proved the compatibility between both materials and their synergistic contribution to gas selective transporten
dc.description.sponsorshipSpanish MINECO MAT2013-40556-R, Aragon Government (DGA), European Social Fund, DGA fellowshipen
dc.language.isoengen
dc.publisherROYAL SOC CHEMISTRYen
dc.titleMOF-polymer enhanced compatibility: post-annealed zeolite imidazolate framework membranes inside polyimide hollow fibersen
dc.typearticleen
dc.identifier.doi10.1039/c5ra26076ken
dc.isiYesen
dc.rights.accessRightsembargoedAccessen
dc.subject.keywordsMetal-organic frameworksen
dc.subject.keywordsMixed Matrix Membranesen
dc.subject.keywordsGas-transport propertiesen
dc.subject.keywordsCarbon-dioxide captureen
dc.subject.keywordsCo-polyimideen
dc.subject.keywordsPervaporation dehydrationen
dc.subject.keywordsComposite membranesen
dc.subject.keywordsCross-linkingen
dc.subject.keywordsP84 polyimideen
dc.subject.keywordsThin-filmen


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