Templated interfacial synthesis of metal-organic framework (MOF) nano- and micro-structures with precisely controlled shapes and sizes
Open Access
- 3 June 2021
- journal article
- research article
- Published by Springer Science and Business Media LLC in Communications Chemistry
- Vol. 4 (1), 1-10
- https://doi.org/10.1038/s42004-021-00522-1
Abstract
Metal-organic frameworks (MOF) are an emerging class of microporous materials with promising applications. MOF nanocrystals, and their assembled super-structures, can display unique properties and reactivities when compared with their bulk analogues. MOF nanostructures of 0-D, 2-D, and 3-D dimensions can be routinely obtained by controlling reaction conditions and ligand additives, while formation of 1-D MOF nanocrystals (nanowires and nanorods) and super-structures has been relatively rare. We report here a facile templated interfacial synthesis methodology for the preparation of a series of 1-D MOF nano- and micro-structures with precisely controlled shapes and sizes. Specifically, by applying track-etched polycarbonate (PCTE) membranes as the templates and at the oil/water interface, we rapidly and reproducibly synthesize zeolitic imidazolate framework-8 (ZIF-8) and ZIF-67 nano- and micro structures of sizes ranging from 10 nm to 20 μm. We also identify a size confinement effect on MOF crystal growth, which leads to single crystals under the most restricted conditions and inter-grown polycrystals at larger template pore sizes, as well as surface directing effects that influence the crystallographic preferred orientation. Our findings provide a potentially generalizable method for controlling the size, morphology, and crystal orientations of MOF nanomaterials, as well as offering fundamental understanding into MOF crystal growth mechanisms.Keywords
Funding Information
- National Science Foundation (1453083, 2101535)
This publication has 82 references indexed in Scilit:
- Metal–organic frameworks based membranes for liquid separationChemical Society Reviews, 2017
- The chemistry of metal–organic frameworks for CO2 capture, regeneration and conversionNature Reviews Materials, 2017
- Metal–Organic Frameworks for Heterogeneous Basic CatalysisChemical Reviews, 2017
- Nanoporous Materials for the Onboard Storage of Natural GasChemical Reviews, 2017
- Metal–organic frameworks for membrane-based separationsNature Reviews Materials, 2016
- The Chemistry of Metal-Organic Frameworks: Synthesis, Characterization, and ApplicationsPublished by Wiley ,2016
- Opportunities and challenges of MOF-based membranes in gas separationsSeparation and Purification Technology, 2015
- The Chemistry and Applications of Metal-Organic FrameworksScience, 2013
- Metal–organic framework materials as catalystsChemical Society Reviews, 2009
- Functional Porous Coordination PolymersAngewandte Chemie, 2004