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dc.contributor.authorBarankova, Eva
dc.contributor.authorTan, Xiaoyu
dc.contributor.authorVillalobos, Luis Francisco
dc.contributor.authorLitwiller, Eric
dc.contributor.authorPeinemann, Klaus-Viktor
dc.date.accessioned2017-05-31T11:23:04Z
dc.date.available2017-05-31T11:23:04Z
dc.date.issued2017-02-06
dc.identifier.citationBarankova E, Tan X, Villalobos LF, Litwiller E, Peinemann K-V (2017) A Metal Chelating Porous Polymeric Support: The Missing Link for a Defect-Free Metal-Organic Framework Composite Membrane. Angewandte Chemie International Edition 56: 2965–2968. Available: http://dx.doi.org/10.1002/anie.201611927.
dc.identifier.issn1433-7851
dc.identifier.doi10.1002/anie.201611927
dc.identifier.doi10.1002/ange.201611927
dc.identifier.urihttp://hdl.handle.net/10754/623782
dc.description.abstractSince the discovery of size-selective metal-organic frameworks (MOFs), researchers have tried to incorporate these materials into gas separation membranes. Impressive gas selectivities were found, but these MOF membranes were mostly made on inorganic supports, which are generally too bulky and expensive for industrial gas separation. Forming MOF layers on porous polymer supports is industrially attractive but technically challenging. Two features to overcome these problems are described: 1) a metal chelating support polymer to bind the MOF layer, and 2) control of MOF crystal growth by contra-diffusion, aiming at a very thin nanocrystalline MOF layer. Using a metal chelating polythiosemicarbazide (PTSC) support and adjusting the metal and organic ligand concentrations carefully, a very compact ZIF-8 (ZIF=zeolitic imidazolate framework) layer was produced that displayed interference colors because of its smooth surface and extreme thinness-within the range of visible light. High performances were measured in terms of hydrogen/propane (8350) and propylene/propane (150) selectivity.
dc.description.sponsorshipThe authors gratefully acknowledge financial support from King Abdullah University of Science and Technology (KAUST) and they thank Rahul Shevate for measuring the zinc binding capacity of PTSC.
dc.publisherWiley-Blackwell
dc.relation.urlhttp://onlinelibrary.wiley.com/doi/10.1002/anie.201611927/abstract
dc.subjectcomposite membranes
dc.subjectcontra-diffusion
dc.subjectgas separation
dc.subjectmetal-organic frameworks
dc.subjectpropylene/propane separation
dc.titleA Metal Chelating Porous Polymeric Support: The Missing Link for a Defect-free Metal-Organic Framework Composite Membrane
dc.typeArticle
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentChemical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalAngewandte Chemie International Edition
kaust.personBarankova, Eva
kaust.personTan, Xiaoyu
kaust.personVillalobos, Luis Francisco
kaust.personLitwiller, Eric
kaust.personPeinemann, Klaus-Viktor
dc.date.published-online2017-02-06
dc.date.published-print2017-03-06


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