118806 20240319081005.0 doi 10.1016/j.seppur.2022.121447 sideral 129999 ART-2022-129999 eng Mohsenpour, S. PIM-1 membranes containing POSS - graphene oxide for CO2 separation 2022 Access copy available to the general public Unrestricted PIM-1 mixed matrix membranes (MMMs) were fabricated with polyhedral oligomeric silsesquioxane (POSS) and graphene oxide (GO) functionalized with POSS (GO-POSS), and tested for CO2/N2 (single gas) and CO2/CH4 (1:1, v:v gas mixture). The CO2 permeability of the best performing fresh MMM (containing 0.05 wt% GO-POSS) was ~ 12000 Barrer, which is 69% higher than that of the neat PIM-1 membrane, with about the same selectivity (CO2/CH4 selectivity ~ 12 and CO2/N2 selectivity ~ 20). In both cases, the gas separation data surpass the 2008 Robeson upper bound. In addition to the initial CO2 permeability enhancement, the use of GO-POSS is an efficient strategy to slow down physical aging. The MMM at a filler loading of 0.75 wt% showed less than half of the reduction in CO2 permeability than the neat PIM-1 membrane 160 days after preparation (26% for the MMM vs 58% for the purely polymeric one). © 2022 The Author(s) info:eu-repo/grantAgreement/ES/MICINN/RYC2019-027060-I info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 8.6 2022 ENGINEERING, CHEMICAL 12 / 141 = 0.085 2022 Q1 T1 1.339 2022 Filtration and Separation 2022 Q1 Analytical Chemistry 2022 Q1 12.7 2022 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Ameen, A. W. Leaper, S. Skuse, C. Almansour, F. Budd, P. M. Gorgojo Alonso, P. Universidad de Zaragoza (orcid)0000-0002-6905-714X 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 298 (2022), 490703 [12 pp] Sep. Purif. Technol. Separation and Purification Technology 1383-5866 4340001 http://zaguan.unizar.es/record/118806/files/texto_completo.pdf Versión publicada 2718395 http://zaguan.unizar.es/record/118806/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:118806 articulos driver 2024-03-18-14:33:39 ARTICLE