Structural Contraction of Zeolitic Imidazolate Frameworks: Membrane Application on Porous Metallic Hollow Fibers for Gas Separation

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dc.contributor.authorCacho-Bailo, Fernando
dc.contributor.authorEtxeberría-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.accessioned2024-07-24T12:11:37Z
dc.date.available2024-07-24T12:11:37Z
dc.date.issued2017-06-21
dc.descriptionPublisher Copyright: © 2017 American Chemical Society.
dc.description.abstractPositive thermal expansion coefficients (TECs) of 52 × 10-6 and 35 × 10-6 K-1 were experimentally calculated in the -116 to 250 °C range for the III-phases of zeolitic imidazolate frameworks (ZIF) ZIF-9(Co) and ZIF-7(Zn), respectively, by means of the unit cell dimensions and volume of the materials in the monoclinic crystal system calculated from the XRD patterns. The unit cell dimensions and volume showed a significant expansion phenomenon as the temperature increased, by as much as 5.5% for ZIF-9-III in the studied range. To exploit the advantages of such thermal behavior, a new approach to the fabrication of ZIF-9-III membranes on thin, flexible, and highly porous nickel hollow fiber (Ni HF) supports by a versatile and easy-controllable microfluidic setup is herein reported. These Ni HF supports result from the sintering of 25-μm Ni particles and display very positive mechanical properties and bending resistance. As compared to the traditional polymer-based HF membranes, the ZIF metal-supported membrane exhibited good durability and robustness throughout its operation in a wide temperature range and after heating and cooling cycles. These benefits derive from (1) the pore-plugging membrane configuration resulting from the high porosity of the support and (2) the similarity between the TECs of the ZIF and the metallic support, both positive, which enhances their mutual compatibility. An increase in the H2/CO2 separation selectivity at low temperatures (as high as 22.2 at -10 °C, along with 102 GPU permeance of H2) was achieved, in agreement with the structural variations observed in the ZIF material.en
dc.description.sponsorshipFinancial support (Grants MAT2013-40556-R, MAT2016-77290-R) from the Spanish MINECO and FEDER, the Aragón Government (DGA, Grant T05) ,and the European Social Fund is gratefully acknowledged. F.C.-B. acknowledges his DGA predoctoral fellowship.
dc.description.statusPeer reviewed
dc.format.extent10
dc.identifier.citationCacho-Bailo , F , Etxeberría-Benavides , M , David , O , Téllez , C & Coronas , J 2017 , ' Structural Contraction of Zeolitic Imidazolate Frameworks : Membrane Application on Porous Metallic Hollow Fibers for Gas Separation ' , ACS applied materials & interfaces , vol. 9 , no. 24 , pp. 20787-20796 . https://doi.org/10.1021/acsami.7b05497
dc.identifier.doi10.1021/acsami.7b05497
dc.identifier.issn1944-8244
dc.identifier.urihttps://hdl.handle.net/11556/4204
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85021140208&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofACS applied materials & interfaces
dc.relation.projectIDFederación Española de Enfermedades Raras, FEDER
dc.relation.projectIDMinisterio de Economía y Competitividad, MINECO
dc.relation.projectIDEuropean Social Fund, ESF
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsMOF
dc.subject.keywordsgas separation
dc.subject.keywordsmembrane
dc.subject.keywordsmetallic hollow fiber
dc.subject.keywordsnickel
dc.subject.keywordsGeneral Materials Science
dc.subject.keywordsSDG 13 - Climate Action
dc.titleStructural Contraction of Zeolitic Imidazolate Frameworks: Membrane Application on Porous Metallic Hollow Fibers for Gas Separationen
dc.typejournal article
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