Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 136, Issue 49, Pages 16978-16981Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja509960n
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Funding
- Ministry of Science and Technology of China [2014CB931800, 2013CB933900, 2010CB934700]
- National Natural Science Foundation of China [21431006, 91022032, 91227103, 21061160492, 21371162, 51301159]
- Chinese Academy of Sciences [KJZD-EW-M01-1]
- Fundamental Research Funds for the Central Universities [WK2060190026]
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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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