dc.contributor.author | Nabais, Ana R. | |
dc.contributor.author | Martins, Ana P.S. | |
dc.contributor.author | Alves, Vítor D. | |
dc.contributor.author | Crespo, João G. | |
dc.contributor.author | Marrucho, Isabel M. | |
dc.contributor.author | Tomé, Liliana C. | |
dc.contributor.author | Neves, Luísa A. | |
dc.date.accessioned | 2020-10-01T17:00:35Z | |
dc.date.available | 2020-10-01T17:00:35Z | |
dc.date.issued | 2019-04-06 | |
dc.identifier.citation | Separation and Purification Technology, 222 : 68-176 (2019) | es_ES |
dc.identifier.issn | 1383-5866 | |
dc.identifier.uri | http://hdl.handle.net/10810/46342 | |
dc.description | Unformatted preprint | es_ES |
dc.description.abstract | Poly(ionic liquid)s (PIL) have emerged as a class of versatile polyelectrolites, that can be used to prepare new materials able to achieve superior performances compared to conventional polymers. The combination of PILs with ionic liquids (ILs) may serve as a suitable matrix for the preparation of membranes for gas separation. In this work, mixed matrix membranes (MMMs) combining a pyrrolidinium-based PIL, an IL and three highly CO2-selective metal organic frameworks (MOFs) were prepared. The different MOFs (MIL-53, Cu3(BTC)2 and ZIF-8) were used as fillers, aiming to maximize the membranes performance towards the purification of syngas. The influence of different MOFs and loadings (0, 10, 20 and 30 wt.%) on the thermal and mechanical stabilities of the membranes and their performance in terms of CO2 permeability and CO2/H2 ideal selectivity was assessed. The compatibility between the materials was confirmed by SEM-EDS and FTIR spectroscopy. The prepared MMMs revealed to be thermally stable within the temperature range of the syngas stream, with a loss of mechanical stability upon the MOF incorporation. The increasing MOF content in the MMMs, resulted in an improvement of both CO2 permeability and CO2/H2 ideal selectivity. Among the three MOFs studied, membranes based on ZIF-8 showed the highest permeabilities (up to 97.2 barrer), while membranes based on MIL-53 showed the highest improvement in selectivity (up to 13.3). Remarkably, all permeation results surpass the upper bound limit for the CO2/H2 separation, showing the membranes potential for the desired gas separation. | es_ES |
dc.description.sponsorship | This work was partially supported by R&D Units UID/Multi/04551/2013 (Green-it), UID/QUI/00100/2013 (CQE), and the Associated Laboratory Research Unit for Green Chemistry, Technologies and Clean Processes, LAQV which is financed by national funds from FCT/MCTES(UID/QUI/50006/2013) and co-financed by the ERDF under the PT2020 Partnership Agreement (POCI-01-0145-FEDER-007265). Ana R. Nabais, Luísa A. Neves and Liliana C. Tomé acknowledge FCT/MCTES for financial support through project PTDC/CTM-POL/2676/2014, FCT Investigator Contract IF/00505/2014 and Post-doctoral research grant SFRH/BDP/101793/2014, respectively. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 745734. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/745734 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.subject | Poly(Ionic Liquids) | es_ES |
dc.subject | Hydrogen purification | es_ES |
dc.subject | Metal Organic Frameworks | es_ES |
dc.subject | Mixed Matrix Membranes | es_ES |
dc.title | Poly(ionic liquid)-based engineered mixed matrix membranes for CO2/H2 separation | es_ES |
dc.type | info:eu-repo/semantics/preprint | es_ES |
dc.rights.holder | © 2019 Elsevier B.V. All rights reserved. | es_ES |
dc.relation.publisherversion | https://doi.org/10.1016/j.seppur.2019.04.018 | es_ES |
dc.identifier.doi | 10.1016/j.seppur.2019.04.018 | |
dc.contributor.funder | European Commission | |
dc.departamentoes | Ciencia y tecnología de polímeros | es_ES |
dc.departamentoeu | Polimeroen zientzia eta teknologia | es_ES |