79159 20200117221635.0 doi 10.1002/chem.201802124 sideral 107606 ART-2018-107606 eng (orcid)0000-0001-6627-0079 Sánchez-Laínez, J. Universidad de Zaragoza Synthesis of ZIF-93/11 Hybrid Nanoparticles via Post-Synthetic Modification of ZIF-93 and Their Use for H2/CO2 Separation 2018 Access copy available to the general public Unrestricted The present work shows the synthesis of nano-sized hybrid zeolitic imidazolate frameworks (ZIFs) with the rho topology based on a mixture of the linkers benzimidazole (bIm) and 4-methyl-5-imidazolecarboxaldehyde (4-m-5-ica). The hybrid ZIF was obtained by post-synthetic modification of ZIF-93 in a bIm solution. The use of different solvents, MeOH and N, N-dimethylacetamide (DMAc), and reaction times led to differences in the quantity of bIm incorporated to the framework, from 7.4 to 23 % according to solution-state NMR spectroscopy. XPS analysis showed that the mixture of linkers was also present at the surface of the particles. The inclusion of bIm to the ZIF-93 nanoparticles improved the thermal stability of the framework and also increased the hydrophobicity according to water adsorption results. N2 and CO2 adsorption experiments revealed that the hybrid material has an intermediate adsorption capacity, between those of ZIF-93 and ZIF-11. Finally, ZIF-93/11 hybrid materials were applied as fillers in polybenzimidazole (PBI) mixed matrix membranes (MMMs). These MMMs were used for H2/CO2 separation (at 180 °C) reaching values of 207 Barrer of H2 and a H2/CO2 selectivity of 7.7 that clearly surpassed the Robeson upper bound (corrected for this temperature). info:eu-repo/grantAgreement/ES/MINECO/MAT2016-77290-R info:eu-repo/grantAgreement/EC/FP7/608490/EU/Energy efficient MOF-based Mixed Matrix Membranes for CO2 Capture/M4CO2 info:eu-repo/grantAgreement/ES/DGA/T05 info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 5.16 2018 CHEMISTRY, MULTIDISCIPLINARY 36 / 172 = 0.209 2018 Q1 T1 1.842 2018 Catalysis 2018 Q1 Organic Chemistry 2018 Q1 Chemistry (miscellaneous) 2018 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion (orcid)0000-0002-9934-1707 Zornoza, B. Universidad de Zaragoza Orsi, A.F. Lozinska, M.M. Dawson, D.M. Ashbrook, S.E. Francis, S.M. Wright, P.A. Benoit, V. Llewellyn, P.L. (orcid)0000-0002-4954-1188 Téllez, C. Universidad de Zaragoza (orcid)0000-0003-1512-4500 Coronas, J. Universidad de Zaragoza 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 24, 43 (2018), 11211-11219 Chemistry (Weinh.) Chemistry - A European Journal 0947-6539 1150891 http://zaguan.unizar.es/record/79159/files/texto_completo.pdf Postprint 121883 http://zaguan.unizar.es/record/79159/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:79159 articulos driver 2020-01-17-22:01:49 ARTICLE