A Metal Chelating Porous Polymeric Support: The Missing Link for a Defect-free Metal-Organic Framework Composite Membrane

Handle URI:
http://hdl.handle.net/10754/623782
Title:
A Metal Chelating Porous Polymeric Support: The Missing Link for a Defect-free Metal-Organic Framework Composite Membrane
Authors:
Barankova, Eva ( 0000-0003-0683-1545 ) ; Tan, Xiaoyu ( 0000-0001-7146-1718 ) ; Villalobos, Luis Francisco ( 0000-0002-0745-4246 ) ; Litwiller, Eric ( 0000-0001-5366-0967 ) ; Peinemann, Klaus-Viktor ( 0000-0003-0309-9598 )
Abstract:
Since 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.
KAUST Department:
Advanced Membranes and Porous Materials Research Center
Citation:
Barankova 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.
Publisher:
Wiley-Blackwell
Journal:
Angewandte Chemie International Edition
Issue Date:
6-Feb-2017
DOI:
10.1002/anie.201611927; 10.1002/ange.201611927
Type:
Article
ISSN:
1433-7851
Sponsors:
The 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.
Additional Links:
http://onlinelibrary.wiley.com/doi/10.1002/anie.201611927/abstract
Appears in Collections:
Articles; Advanced Membranes and Porous Materials Research Center

Full metadata record

DC FieldValue Language
dc.contributor.authorBarankova, Evaen
dc.contributor.authorTan, Xiaoyuen
dc.contributor.authorVillalobos, Luis Franciscoen
dc.contributor.authorLitwiller, Ericen
dc.contributor.authorPeinemann, Klaus-Viktoren
dc.date.accessioned2017-05-31T11:23:04Z-
dc.date.available2017-05-31T11:23:04Z-
dc.date.issued2017-02-06en
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.en
dc.identifier.issn1433-7851en
dc.identifier.doi10.1002/anie.201611927en
dc.identifier.doi10.1002/ange.201611927en
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.en
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.en
dc.publisherWiley-Blackwellen
dc.relation.urlhttp://onlinelibrary.wiley.com/doi/10.1002/anie.201611927/abstracten
dc.subjectcomposite membranesen
dc.subjectcontra-diffusionen
dc.subjectgas separationen
dc.subjectmetal-organic frameworksen
dc.subjectpropylene/propane separationen
dc.titleA Metal Chelating Porous Polymeric Support: The Missing Link for a Defect-free Metal-Organic Framework Composite Membraneen
dc.typeArticleen
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Centeren
dc.identifier.journalAngewandte Chemie International Editionen
kaust.authorBarankova, Evaen
kaust.authorTan, Xiaoyuen
kaust.authorVillalobos, Luis Franciscoen
kaust.authorLitwiller, Ericen
kaust.authorPeinemann, Klaus-Viktoren
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