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Solvent-free powder synthesis and MOF-CVD thin films of the large-pore metal-organic framework MAF-6
DOI:
10.1021/acs.chemmater.9b03807
Authors:
Timothee
Stassin
(KU Leuven)
,
Ivo
Stassen
(KU Leuven)
,
Joao
Marreiros
(KU Leuven)
,
Alexander John
Cruz
(KU Leuven)
,
Rhea
Verbeke
(KU Leuven)
,
Min
Tu
(KU Leuven)
,
Helge
Reinsch
(Christian-Albrechts-Universität zu Kiel)
,
Marcel
Dickmann
(Technische Universität München)
,
Werner
Egger
(Universität der Bundeswehr München)
,
Ivo F. J.
Vankelecom
(KU Leuven)
,
Dirk E.
De Vos
(KU Leuven)
,
Rob
Ameloot
(KU Leuven)
Co-authored by industrial partner:
No
Type:
Journal Paper
Journal:
Chemistry Of Materials
State:
Published (Approved)
Published:
January 2020
Diamond Proposal Number(s):
17279
Abstract: A simple solvent- and catalyst-free method is presented for the synthesis of the large-pore metal-organic framework (MOF) MAF-6 (RHO-Zn(eIm)2) based on the reaction of ZnO with 2-ethylimidazole vapor at temperatures ≤ 100 °C. By translating this method to a chemical vapor deposition (CVD) protocol, crystalline films of a large-pore material could be deposited for the first time entirely from the vapor phase. A combination of PALS and Kr physisorption measurements confirmed the porosity of these MOF-CVD films and the size of the MAF-6 supercages (diam. ~2 nm), in close agreement with powder data and calculations. MAF-6 powders and films were further characterized by XRD, TGA, SEM, FTIR, PDF and EXAFS. The exceptional uptake capacity of MAF-6 in comparison to ZIF-8 is demonstrated by vapor-phase loading of a molecule larger than the ZIF-8 windows.
Journal Keywords: Granular materials; Thin films; Oxides; Metal organic frameworks; Chemical vapor deposition
Subject Areas:
Materials,
Chemistry,
Physics
Instruments:
I15-1-X-ray Pair Distribution Function (XPDF)
Other Facilities: Elettra Synchrotron Trieste: ESRF; Advanced Photon Source
Added On:
27/01/2020 11:51
Discipline Tags:
Surfaces
Physics
Chemistry
Materials Science
interfaces and thin films
Metal-Organic Frameworks
Metallurgy
Organometallic Chemistry
Technical Tags:
Scattering
Total Scattering