A Facile
and General Coating Approach to Moisture/Water-Resistant
Metal–Organic Frameworks with Intact Porosity
Wang Zhang
Yingli Hu
Jin Ge
Hai-Long Jiang
Shu-Hong Yu
10.1021/ja509960n.s001
https://acs.figshare.com/articles/journal_contribution/A_Facile_and_General_Coating_Approach_to_Moisture_Water_Resistant_Metal_Organic_Frameworks_with_Intact_Porosity/2226679
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.
2014-12-10 00:00:00
coating process
HKUST
MOF materials
vapor deposition technique
pore characteristics
Intact PorosityThe moisture sensitivity
PDMS
surface areas
water resistance
gas sorption
General Coating Approach