000086123 001__ 86123
000086123 005__ 20200716101443.0
000086123 0247_ $$2doi$$a10.1039/c8nj04769c
000086123 0248_ $$2sideral$$a109723
000086123 037__ $$aART-2019-109723
000086123 041__ $$aeng
000086123 100__ $$0(orcid)0000-0001-6627-0079$$aSánchez-Laínez, J.$$uUniversidad de Zaragoza
000086123 245__ $$aThin supported MOF based mixed matrix membranes of Pebax® 1657 for biogas upgrade
000086123 260__ $$c2019
000086123 5060_ $$aAccess copy available to the general public$$fUnrestricted
000086123 5203_ $$aThis work shows the preparation of thin mixed matrix membranes (MMMs) with a 2-3 µm thick Pebax® 1657 layer on two different supports: a porous asymmetric polyimide P84® and dense polytrimethylsilylpropyne (PTMSP). Nanoparticles of metal-organic frameworks (MOFs) ZIF-8, MIL-101(Cr), UiO-66 and ZIF-7/8 core-shells were selected as fillers for the Pebax® 1657 based MMMs, all of them being MOFs with high CO2 adsorption capacity but different pore size distribution. All the membranes were characterized by SEM, FTIR, Raman, TGA and XRD analyses, showing in all cases a perfect compatibility of the Pebax® layer with both supports and also a good dispersion of the fillers in the polymeric matrix. These membranes were applied for the separation of equimolar CO2/CH4 mixtures at 35 °C under feed pressures between 3 and 5 bar, where an improvement in the gas separation performance with increasing pressure was noticed, thanks to the favored solubility of CO2. The synergistic compatibility between Pebax® 1657 and P84® gave rise to a 470% enhancement in CO2/CH4 selectivity, reaching a maximum value of 114 while the CO2 permeance increased by 40% up to 7.5 GPU. The addition of fillers in the Pebax® polymeric phase produced an improvement in the gas separation performance of the membranes, especially in terms of permeance, where the MMMs containing a 10 wt% loading of UiO-66 reached the optimum value of 11.5 GPU of CO2 (together with a CO2/CH4 selectivity of 55.6).
000086123 536__ $$9info:eu-repo/grantAgreement/ES/DGA/T43-17R$$9info:eu-repo/grantAgreement/ES/MEC/FPU2014$$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/MAT2016-77290-R
000086123 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000086123 590__ $$a3.288$$b2019
000086123 591__ $$aCHEMISTRY, MULTIDISCIPLINARY$$b68 / 177 = 0.384$$c2019$$dQ2$$eT2
000086123 592__ $$a0.712$$b2019
000086123 593__ $$aMaterials Chemistry$$c2019$$dQ1
000086123 593__ $$aChemistry (miscellaneous)$$c2019$$dQ2
000086123 593__ $$aCatalysis$$c2019$$dQ3
000086123 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000086123 700__ $$aGracia-Guillén, I.
000086123 700__ $$0(orcid)0000-0002-9934-1707$$aZornoza, B.
000086123 700__ $$0(orcid)0000-0002-4954-1188$$aTéllez, C.$$uUniversidad de Zaragoza
000086123 700__ $$0(orcid)0000-0003-1512-4500$$aCoronas, J.$$uUniversidad de Zaragoza
000086123 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química
000086123 773__ $$g43, 1 (2019), 312-319$$pNew j. chem.$$tNEW JOURNAL OF CHEMISTRY$$x1144-0546
000086123 8564_ $$s1030708$$uhttps://zaguan.unizar.es/record/86123/files/texto_completo.pdf$$yPostprint
000086123 8564_ $$s113855$$uhttps://zaguan.unizar.es/record/86123/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000086123 909CO $$ooai:zaguan.unizar.es:86123$$particulos$$pdriver
000086123 951__ $$a2020-07-16-09:00:30
000086123 980__ $$aARTICLE