Nanocrystalline MOFs Embedded in the Crystals of Other MOFs and Their Multifunctional Performance for Molecular Encapsulation and Energy-Carrier Storage

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A metal-organic framework (MOP) with a specific construction and pores was demonstrated to have many advanced properties, but still limited to having unique aspects arising from the combination of different MOFs in a single body. Here, we report a facile method to produce MOF-5 crystals with nanocrystalline HKUST-1 (nHKUST-1) embedded into them in what is termed the "nHKUST-1 subset of MOF-5" structure. The results show that the nHKUST-1 subset of MOF-5 structure is capable of Molecular encapsulation by trapping dye molecules in nHKUST-1 particles and embedding them in MOF-5 crystals. Moreover, the gravimetric uptake capacity of nHKUST-1 subset of MOF-5 for methane (CH4) was found to be enhanced as compared to that of MOF-5 or nHKUST-1 alone such that the nHKUST-1 subset of MOF-5 structure exhibits a volumetric capacity of 250% for fuel storage deliverable by the CNG tank at room temperature and 80 bar. Furthermore, it showed robust capacity retention for reversible CH4 uptake cycles at room temperature.
Publisher
AMER CHEMICAL SOC
Issue Date
2015-07
Language
English
Article Type
Article
Citation

CHEMISTRY OF MATERIALS, v.27, no.14, pp.5088 - 5093

ISSN
0897-4756
DOI
10.1021/acs.chemmater.5b01786
URI
http://hdl.handle.net/10203/205644
Appears in Collection
EEW-Journal Papers(저널논문)
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