Hybrid Zeolitic Imidazolate Frameworks: Controlling Framework Porosity and Functionality by Mixed-Linker Synthesis

Handle URI:
http://hdl.handle.net/10754/598529
Title:
Hybrid Zeolitic Imidazolate Frameworks: Controlling Framework Porosity and Functionality by Mixed-Linker Synthesis
Authors:
Thompson, Joshua A.; Blad, Catherine R.; Brunelli, Nicholas A.; Lydon, Megan E.; Lively, Ryan P.; Jones, Christopher W.; Nair, Sankar
Abstract:
Zeolitic imidazolate frameworks (ZIFs) are a subclass of nanoporous metal-organic frameworks (MOFs) that exhibit zeolite-like structural topologies and have interesting molecular recognition properties, such as molecular sieving and gate-opening effects associated with their pore apertures. The synthesis and characterization of hybrid ZIFs with mixed linkers in the framework are described in this work, producing materials with properties distinctly different from the parent frameworks (ZIF-8, ZIF-90, and ZIF-7). NMR spectroscopy is used to assess the relative amounts of the different linkers included in the frameworks, whereas nitrogen physisorption shows the evolution of the effective pore size distribution in materials resulting from the framework hybridization. X-ray diffraction shows these hybrid materials to be crystalline. In the case of ZIF-8-90 hybrids, the cubic space group of the parent frameworks is continuously maintained, whereas in the case of the ZIF-7-8 hybrids there is a transition from a cubic to a rhombohedral space group. Nitrogen physisorption data reveal that the hybrid materials exhibit substantial changes in gate-opening phenomena, either occurring at continuously tunable partial pressures of nitrogen (ZIF-8-90 hybrids) or loss of gate-opening effects to yield more rigid frameworks (ZIF-7-8 hybrids). With this synthetic approach, significant alterations in MOF properties may be realized to suit a desired separation or catalytic process. © 2012 American Chemical Society.
Citation:
Thompson JA, Blad CR, Brunelli NA, Lydon ME, Lively RP, et al. (2012) Hybrid Zeolitic Imidazolate Frameworks: Controlling Framework Porosity and Functionality by Mixed-Linker Synthesis. Chem Mater 24: 1930–1936. Available: http://dx.doi.org/10.1021/cm3006953.
Publisher:
American Chemical Society (ACS)
Journal:
Chemistry of Materials
KAUST Grant Number:
KUS-Il-011-21
Issue Date:
22-May-2012
DOI:
10.1021/cm3006953
Type:
Article
ISSN:
0897-4756; 1520-5002
Sponsors:
This work was supported by King Abdullah University of Science and Technology under Award No. KUS-I1-011-21.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorThompson, Joshua A.en
dc.contributor.authorBlad, Catherine R.en
dc.contributor.authorBrunelli, Nicholas A.en
dc.contributor.authorLydon, Megan E.en
dc.contributor.authorLively, Ryan P.en
dc.contributor.authorJones, Christopher W.en
dc.contributor.authorNair, Sankaren
dc.date.accessioned2016-02-25T13:31:38Zen
dc.date.available2016-02-25T13:31:38Zen
dc.date.issued2012-05-22en
dc.identifier.citationThompson JA, Blad CR, Brunelli NA, Lydon ME, Lively RP, et al. (2012) Hybrid Zeolitic Imidazolate Frameworks: Controlling Framework Porosity and Functionality by Mixed-Linker Synthesis. Chem Mater 24: 1930–1936. Available: http://dx.doi.org/10.1021/cm3006953.en
dc.identifier.issn0897-4756en
dc.identifier.issn1520-5002en
dc.identifier.doi10.1021/cm3006953en
dc.identifier.urihttp://hdl.handle.net/10754/598529en
dc.description.abstractZeolitic imidazolate frameworks (ZIFs) are a subclass of nanoporous metal-organic frameworks (MOFs) that exhibit zeolite-like structural topologies and have interesting molecular recognition properties, such as molecular sieving and gate-opening effects associated with their pore apertures. The synthesis and characterization of hybrid ZIFs with mixed linkers in the framework are described in this work, producing materials with properties distinctly different from the parent frameworks (ZIF-8, ZIF-90, and ZIF-7). NMR spectroscopy is used to assess the relative amounts of the different linkers included in the frameworks, whereas nitrogen physisorption shows the evolution of the effective pore size distribution in materials resulting from the framework hybridization. X-ray diffraction shows these hybrid materials to be crystalline. In the case of ZIF-8-90 hybrids, the cubic space group of the parent frameworks is continuously maintained, whereas in the case of the ZIF-7-8 hybrids there is a transition from a cubic to a rhombohedral space group. Nitrogen physisorption data reveal that the hybrid materials exhibit substantial changes in gate-opening phenomena, either occurring at continuously tunable partial pressures of nitrogen (ZIF-8-90 hybrids) or loss of gate-opening effects to yield more rigid frameworks (ZIF-7-8 hybrids). With this synthetic approach, significant alterations in MOF properties may be realized to suit a desired separation or catalytic process. © 2012 American Chemical Society.en
dc.description.sponsorshipThis work was supported by King Abdullah University of Science and Technology under Award No. KUS-I1-011-21.en
dc.publisherAmerican Chemical Society (ACS)en
dc.subjectcrystal growthen
dc.subjecthybrid structuresen
dc.subjectmetal organic frameworksen
dc.subjectnanocrystalsen
dc.subjectnucleationen
dc.subjectzeolitic imidazolate frameworksen
dc.titleHybrid Zeolitic Imidazolate Frameworks: Controlling Framework Porosity and Functionality by Mixed-Linker Synthesisen
dc.typeArticleen
dc.identifier.journalChemistry of Materialsen
dc.contributor.institutionGeorgia Institute of Technology, Atlanta, United Statesen
dc.contributor.institutionAlgenol Biofuels, , United Statesen
kaust.grant.numberKUS-Il-011-21en
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