Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 22, Issue 14, Pages 4695-4699Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201504836
Keywords
covalent organic frameworks; gas separation; membranes; microporous materials; pore modulation
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Funding
- UGC
- CSIR (New Delhi, India)
- CSIR [CSC0122, CSC0102]
- DST Indo-Singapore Project [INT/SIN/P-05]
- DST Nano-mission Project [SR/NM/NS-1179/2012G]
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Highly flexible, TpPa-1@PBI-BuI and TpBD@PBI-BuI hybrid membranes based on chemically stable covalent organic frameworks (COFs) could be obtained with the polymer. The loading obtained was substantially higher (50%) than generally observed with MOFs. These hybrid membranes show an exciting enhancement in permeability (about sevenfold) with appreciable separation factors for CO2/N-2 and CO2/CH4. Further, we found that with COF pore modulation, the gas permeability can be systematically enhanced.
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