000060612 001__ 60612
000060612 005__ 20200221144333.0
000060612 0247_ $$2doi$$a10.1039/c5ra26076k
000060612 0248_ $$2sideral$$a93630
000060612 037__ $$aART-2016-93630
000060612 041__ $$aeng
000060612 100__ $$0(orcid)0000-0002-0238-3127$$aCacho-Bailo, F.$$uUniversidad de Zaragoza
000060612 245__ $$aMOF-polymer enhanced compatibility: Post-annealed zeolite imidazolate framework membranes inside polyimide hollow fibers
000060612 260__ $$c2016
000060612 5060_ $$aAccess copy available to the general public$$fUnrestricted
000060612 5203_ $$aThermal 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 µm 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 H2 and CH4 permeances, the MOF-polymer adhesion was enhanced. Thus the gas separation selectivity increased without any significant reduction in the gas permeance, and H2/CH4 and CO2/CH4 maximum selectivities of 103 and 18 (ZIF-8) and 101 and 20 (ZIF-93) 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 transport.
000060612 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/MAT2013-40566-R
000060612 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttp://creativecommons.org/licenses/by-nc/3.0/es/
000060612 590__ $$a3.108$$b2016
000060612 591__ $$aCHEMISTRY, MULTIDISCIPLINARY$$b59 / 166 = 0.355$$c2016$$dQ2$$eT2
000060612 592__ $$a0.889$$b2016
000060612 593__ $$aChemistry (miscellaneous)$$c2016$$dQ1
000060612 593__ $$aChemical Engineering (miscellaneous)$$c2016$$dQ1
000060612 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000060612 700__ $$aCaro, G.
000060612 700__ $$aEtxeberría-Benavides, M.
000060612 700__ $$aKarvan, O.
000060612 700__ $$0(orcid)0000-0002-4954-1188$$aTéllez, C.$$uUniversidad de Zaragoza
000060612 700__ $$0(orcid)0000-0003-1512-4500$$aCoronas, J.$$uUniversidad de Zaragoza
000060612 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química
000060612 773__ $$g6, 7 (2016), 5881-5889$$pRSC ADVANCES$$tRSC Advances$$x2046-2069
000060612 8564_ $$s1092162$$uhttps://zaguan.unizar.es/record/60612/files/texto_completo.pdf$$yVersión publicada
000060612 8564_ $$s116397$$uhttps://zaguan.unizar.es/record/60612/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000060612 909CO $$ooai:zaguan.unizar.es:60612$$particulos$$pdriver
000060612 951__ $$a2020-02-21-13:46:12
000060612 980__ $$aARTICLE