Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 22, Issue 26, Pages 8751-8755Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201600313
Keywords
high internal phase emulsion; metal-organic frameworks; porous monoliths; self-assembly
Categories
Funding
- Natural Sciences and Engineering Research Council (NSERC) of Canada
- Canada Research Chair (CRC) program of the Federal Government
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3D Hierarchical porous metal-organic framework (MOF) monoliths are prepared by using Pickering high internal phase emulsion (HIPE) template. Pickering HIPEs were stabilized solely by UiO-66 MOF particles with internal phase up to 90% of the volume. The effects of internal phase type and volume, as well as MOF particle concentration on the stability of resulting Pickering HIPEs were investigated. Furthermore, by adding small amount of polyvinyl alcohol (PVA) as binder or polymerization in the continuous aqueous phase, followed by freeze-drying, two types of MOF-based 3D hierarchical porous monoliths with ultralow density (as low as 12 mg cm(-3)) were successfully prepared. This Pickering HIPE template approach provides a facile and practical way for assembling of MOFs into complex structures.
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