Journal of the American Chemical Society · 2014 · 582 citations · 37 references
Natural SciencesMaterials EngineeringMaterials ScienceMaterials ChemistrySurface EngineeringSurface ScienceCoating TechnologyCoatingsMoisture-resistant MaterialsPorous MaterialsSurface HydrophobicitySurface ModificationConformal CoatingGas SorptionHydrophobic ModificationHydrophobicityMetal-organic FrameworksMoisture SensitivitySorptionSurface Hydrophobicity Modification
The moisture sensitivity of many metal-organic frameworks (MOFs) poses a critical issue for their large-scale real application. One of the most effective methods to solve this problem is to convert the surface of MOFs from hydrophilic to hydrophobic. Herein, we develop a general strategy to modify hydrophobic polydimethysiloxane (PDMS) on the surface of MOF materials to significantly enhance their moisture or water resistance by a facile vapor deposition technique. MOF-5, HKUST-1, and ZnBT as representative vulnerable MOFs were successfully coated by PDMS, and these coated samples well inherited their original crystalline nature and pore characteristics. Strikingly, the surface areas of these MOFs were nearly 100% retained upon PDMS-coating. Such a coating process might render MOFs applicable in the presence of water or humidity in extended fields such as gas sorption and catalysis.
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The Chemistry and Applications of Metal-Organic Frameworks
Hiroyasu Furukawa, Kyle E. Cordova, M. O’Keeffe et al. · Science · 2013 · 16.5K citations
Design and synthesis of an exceptionally stable and highly porous metal-organic framework
Hailian Li, Mohamed Eddaoudi, M. O’Keeffe et al. · Nature · 1999 · 8.4K citations · Full text