000098488 001__ 98488
000098488 005__ 20210902121639.0
000098488 0247_ $$2doi$$a10.1039/c9dt04424h
000098488 0248_ $$2sideral$$a117219
000098488 037__ $$aART-2020-117219
000098488 041__ $$aeng
000098488 100__ $$0(orcid)0000-0001-6627-0079$$aSánchez-Laínez, Javier
000098488 245__ $$aPebax® 1041 supported membranes with carbon nanotubes prepared: Via phase inversion for CO2/N2 separation
000098488 260__ $$c2020
000098488 5060_ $$aAccess copy available to the general public$$fUnrestricted
000098488 5203_ $$aThis work shows the preparation of Pebax® 1041 films from solutions in DMAc and water-DMAc emulsions as alternatives to those prepared by extrusion that can be found in the literature. These membranes were tested in post-combustion CO2 capture, in the separation of a 15/85 (v/v) CO2/N2 mixture. Self-supported membranes of Pebax® 1041 were prepared by solvent evaporation and phase inversion. The characterization of these films defined the intrinsic properties of this polymer in terms of chemical structure, crystallinity, thermal stability and gas separation performance (a CO2 permeability of 30 Barrer with a CO2/N2 selectivity of 21 at 35 °C and 3 bar feed pressure). Supported Pebax® 1041 membranes were also developed to decrease the Pebax® thickness (in the 1.5-10 µm range), resulting in a higher permeance. These membranes were prepared by a phase inversion process consisting of the precipitation of a Pebax® 1041/DMAc solution in water and dispersing it to form a stable emulsion that was drop-cast on PSF asymmetric supports. Once dried, the polymer formed a dense continuous layer. The phase inversion methodology is "greener" than solvent evaporation since dimethylacetamide is not released as toxic vapour during membrane preparation. The amount drop-cast led to a different selective layer thickness, which was enhanced by the dispersion of MWCNTs in the polymer emulsion. The properties of the Pebax® selective layer were studied by thermogravimetry and by measuring the contact angle of the membrane surface, and the optimal CO2/N2 selectivity (22.6) was obtained with a CO2 permeance of 3.0 GPU.
000098488 536__ $$9info:eu-repo/grantAgreement/ES/DGA/T43-17R$$9info:eu-repo/grantAgreement/ES/MEC/FPU2014$$9info:eu-repo/grantAgreement/ES/MINECO/MAT2016-77290-R
000098488 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000098488 590__ $$a4.39$$b2020
000098488 591__ $$aCHEMISTRY, INORGANIC & NUCLEAR$$b8 / 45 = 0.178$$c2020$$dQ1$$eT1
000098488 592__ $$a0.98$$b2020
000098488 593__ $$aInorganic Chemistry$$c2020$$dQ1
000098488 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000098488 700__ $$aBallester-Catalán, Marcos
000098488 700__ $$aJavierre-Ortín, Enrique
000098488 700__ $$0(orcid)0000-0002-4954-1188$$aTéllez, Carlos$$uUniversidad de Zaragoza
000098488 700__ $$0(orcid)0000-0003-1512-4500$$aCoronas, Joaquín$$uUniversidad de Zaragoza
000098488 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química
000098488 773__ $$g49, 9 (2020), 2905-2913$$pDalton Trans.$$tDalton Transactions$$x1477-9226
000098488 8564_ $$s1665779$$uhttps://zaguan.unizar.es/record/98488/files/texto_completo.pdf$$yPostprint
000098488 8564_ $$s2689504$$uhttps://zaguan.unizar.es/record/98488/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000098488 909CO $$ooai:zaguan.unizar.es:98488$$particulos$$pdriver
000098488 951__ $$a2021-09-02-08:58:30
000098488 980__ $$aARTICLE