Green Preparation of Thin Films of Polybenzimidazole on Flat and Hollow Fiber Supports: Application to Hydrogen Separation

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dc.contributor.authorSánchez-Laínez, Javier
dc.contributor.authorEtxeberria-Benavides, Miren
dc.contributor.authorDavid, Oana
dc.contributor.authorTéllez, Carlos
dc.contributor.authorCoronas, Joaquín
dc.contributor.institutionTECNOLOGÍA DE MEMBRANAS E INTENSIFICACIÓN DE PROCESOS
dc.date.accessioned2024-07-24T12:12:37Z
dc.date.available2024-07-24T12:12:37Z
dc.date.issued2021-02-05
dc.descriptionPublisher Copyright: © 2020 Wiley-VCH GmbH
dc.description.abstractThis work shows the preparation of thin films, with thickness from 70 nm to 1 μm, of meta-polybenzimidazole (m-PBI) on polyimide P84 supports. Ethanolic solutions of m-PBI were used to coat flat and hollow fiber supports of asymmetric P84 with m-PBI in a process where the coating and drying was performed at room temperature. A solution of NaOH in EtOH allowed the dissolution of the m-PBI powder, providing the perfect coating solution to build thin films of m-PBI without damaging the polymeric support. It also meant a green alternative, avoiding the use of toxic solvents, such as dimethylacetamide. The resulting membranes have been tested for the separation of H2 mixtures at high temperature at different setups to allow checking their reproducibility. With 100 nm thickness the membranes showed their best gas separation performance. For flat membranes at 180 °C and 3 bar feed pressure a H2 permeance of 48.5 GPU was obtained, with respective H2/CO2 and H2/N2 selectivities of 33.3 and 55.8. Besides, the hollow fibers under a feed pressure of 6 bar and tested at the same temperature showed near 90 GPU of H2 with a H2/CO2 selectivity of 13.5 in the one-fiber module and over 39 GPU of H2 with a H2/CO2 selectivity of 20.2 in the five-fiber module. Finally, the stability of the membranes was proved for 22 days at 180 °C.en
dc.description.sponsorshipFinancial support from the Spanish Research Projects MAT2016‐77290‐R (MINECO/AEI, FEDER/UE), PID2019‐104009RB−I00/AEI/10.13039/501100011033 and T43‐17R (the Aragón Government and the ESF) is gratefully acknowledged. Financial support from the Spanish Research Projects MAT2016-77290-R (MINECO/AEI, FEDER/UE), PID2019-104009RB?I00/AEI/10.13039/501100011033 and T43-17R (the Arag?n Government and the ESF) is gratefully acknowledged.
dc.description.statusPeer reviewed
dc.format.extent9
dc.identifier.citationSánchez-Laínez , J , Etxeberria-Benavides , M , David , O , Téllez , C & Coronas , J 2021 , ' Green Preparation of Thin Films of Polybenzimidazole on Flat and Hollow Fiber Supports : Application to Hydrogen Separation ' , ChemSusChem , vol. 14 , no. 3 , pp. 952-960 . https://doi.org/10.1002/cssc.202002700
dc.identifier.doi10.1002/cssc.202002700
dc.identifier.issn1864-5631
dc.identifier.urihttps://hdl.handle.net/11556/4296
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85097559541&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofChemSusChem
dc.relation.projectIDAragón Government
dc.relation.projectIDFEDER/UE, PID2019‐104009RB−I00/AEI/10.13039/501100011033
dc.relation.projectIDMINECO/AEI
dc.relation.projectIDSpanish Research Projects MAT2016‐77290‐R
dc.relation.projectIDCollege of Environmental Science and Forestry, State University of New York, ESF
dc.relation.projectIDMinisterio de Economía y Competitividad, MINECO
dc.relation.projectIDEuropean Social Fund, ESF
dc.relation.projectIDGobierno de Aragón
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subject.keywordsethanol
dc.subject.keywordsgreen chemistry
dc.subject.keywordshydrogen purification
dc.subject.keywordspolybenzimidazole
dc.subject.keywordssupported membranes
dc.subject.keywordsEnvironmental Chemistry
dc.subject.keywordsGeneral Chemical Engineering
dc.subject.keywordsGeneral Materials Science
dc.subject.keywordsGeneral Energy
dc.titleGreen Preparation of Thin Films of Polybenzimidazole on Flat and Hollow Fiber Supports: Application to Hydrogen Separationen
dc.typejournal article
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