{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,14]],"date-time":"2026-02-14T02:05:14Z","timestamp":1771034714914,"version":"3.50.1"},"reference-count":76,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2022,1,9]],"date-time":"2022-01-09T00:00:00Z","timestamp":1641686400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Luxembourg National Research Fund","award":["INTER\/ANR\/19\/13358226"],"award-info":[{"award-number":["INTER\/ANR\/19\/13358226"]}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","doi-asserted-by":"publisher","award":["UIDB\/00100\/2020"],"award-info":[{"award-number":["UIDB\/00100\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","doi-asserted-by":"publisher","award":["2021.05450.BD"],"award-info":[{"award-number":["2021.05450.BD"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>This work aims to explore the gas permeation performance of two newly-designed ionic liquids, [C2mim][CF3BF3] and [C2mim][CF3SO2C(CN)2], in supported ionic liquid membranes (SILM) configuration, as another effort to provide an overall insight on the gas permeation performance of functionalized-ionic liquids with the [C2mim]+ cation. [C2mim][CF3BF3] and [C2mim][CF3SO2C(CN)2] single gas separation performance towards CO2, N2, and CH4 at T = 293 K and T = 308 K were measured using the time-lag method. Assessing the CO2 permeation results, [C2mim][CF3BF3] showed an undermined value of 710 Barrer at 293.15 K and 1 bar of feed pressure when compared to [C2mim][BF4], whereas for the [C2mim][CF3SO2C(CN)2] IL an unexpected CO2 permeability of 1095 Barrer was attained at the same experimental conditions, overcoming the results for the remaining ILs used for comparison. The prepared membranes exhibited diverse permselectivities, varying from 16.9 to 22.2 for CO2\/CH4 and 37.0 to 44.4 for CO2\/N2 gas pairs. The thermophysical properties of the [C2mim][CF3BF3] and [C2mim][CF3SO2C(CN)2] ILs were also determined in the range of T = 293.15 K up to T = 353.15 K at atmospheric pressure and compared with those for other ILs with the same cation and anion\u2019s with similar chemical moieties.<\/jats:p>","DOI":"10.3390\/molecules27020413","type":"journal-article","created":{"date-parts":[[2022,1,9]],"date-time":"2022-01-09T23:06:15Z","timestamp":1641769575000},"page":"413","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Tunning CO2 Separation Performance of Ionic Liquids through Asymmetric Anions"],"prefix":"10.3390","volume":"27","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2640-8146","authenticated-orcid":false,"given":"Bruna F.","family":"Soares","sequence":"first","affiliation":[{"name":"Centro de Qu\u00edmica Estrutural, Departamento de Engenharia Qu\u00edmica,  Institute of Molecular Sciences, Instituto Superior T\u00e9cnico de Lisboa, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal"}]},{"given":"Daniil R.","family":"Nosov","sequence":"additional","affiliation":[{"name":"Luxembourg Institute of Science and Technology (LIST), 5 Avenue des Hauts-Fourneaux, L-4362 Esch-sur-Alzette, Luxembourg"},{"name":"Department of Physics and Materials Science, University of Luxembourg, 2 Avenue de l\u2019Universit\u00e9, L-4365 Esch-sur-Alzette, Luxembourg"}]},{"given":"Jos\u00e9 M.","family":"Pires","sequence":"additional","affiliation":[{"name":"Centro de Qu\u00edmica Estrutural, Departamento de Engenharia Qu\u00edmica,  Institute of Molecular Sciences, Instituto Superior T\u00e9cnico de Lisboa, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal"}]},{"given":"Andrey A.","family":"Tyutyunov","sequence":"additional","affiliation":[{"name":"A.N. Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences (INEOS RAS), Vavilov Str. 28, GSP-1, 119991 Moscow, Russia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8304-3310","authenticated-orcid":false,"given":"Elena I.","family":"Lozinskaya","sequence":"additional","affiliation":[{"name":"A.N. Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences (INEOS RAS), Vavilov Str. 28, GSP-1, 119991 Moscow, Russia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2703-381X","authenticated-orcid":false,"given":"Dmitrii Y.","family":"Antonov","sequence":"additional","affiliation":[{"name":"A.N. Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences (INEOS RAS), Vavilov Str. 28, GSP-1, 119991 Moscow, Russia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7789-2663","authenticated-orcid":false,"given":"Alexander S.","family":"Shaplov","sequence":"additional","affiliation":[{"name":"Luxembourg Institute of Science and Technology (LIST), 5 Avenue des Hauts-Fourneaux, L-4362 Esch-sur-Alzette, Luxembourg"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8733-1958","authenticated-orcid":false,"given":"Isabel M.","family":"Marrucho","sequence":"additional","affiliation":[{"name":"Centro de Qu\u00edmica Estrutural, Departamento de Engenharia Qu\u00edmica,  Institute of Molecular Sciences, Instituto Superior T\u00e9cnico de Lisboa, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2022,1,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"6040","DOI":"10.1021\/jp050430h","article-title":"On the Critical Temperature, Normal Boiling Point, and Vapor Pressure of Ionic Liquids","volume":"109","author":"Rebelo","year":"2005","journal-title":"J. Phys. Chem. B"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"93","DOI":"10.1016\/j.fluid.2004.02.003","article-title":"Room temperature ionic liquids and their mixtures\u2014A review","volume":"219","author":"Marsh","year":"2004","journal-title":"Fluid Phase Equilib."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"9580","DOI":"10.1021\/ie101441s","article-title":"Thermophysical Properties of Pure Ionic Liquids: Review of Present Situation","volume":"49","author":"Aparicio","year":"2010","journal-title":"Ind. Eng. Chem. 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