Journal article
Hyper-Cross-linked Porous Organic Frameworks with Ultramicropores for Selective Xenon Capture
ACS applied materials & interfaces, Vol.11(14), pp.13279-13284
04/10/2019
DOI: 10.1021/acsami.9b01619
PMID: 30888146
Abstract
Exceptionally stable ultramicroporous C-C-bonded porous organic frameworks (IISERP-POF6, 7, 8) have been prepared using simple Friedel-Crafts reaction. These polymers exhibit permanent porosity with a Brunauer-Emmett-Teller surface area of 645-800 m(2)/g. Xe/Kr adsorptive separation has been carried out with these polymers, and they display selective Xe capture (s(Xe/Kr) = 6.7, 6.3, and 6.3) at 298 K and 1 bar pressure. Interestingly, these polymers also show remarkable Xe/N-2 (s(Xe/N-2) = 200, 180, and 160 at 298 K and 1 bar) and Xe/CO2 selectivity (s(Xe/CO2) = 5.6, 7.4, and 5.6) for a 1:99 composition of Xe-N-2/Xe-CO2. Selective removal of Xe at such low concentrations is extremely challenging; the observed selectivities are higher compared to those observed in porous carbons and metal-organic frameworks. Breakthrough studies were performed using the composition relevant to the nuclear off-gas mixture with the polymers, and we find that the polymers hold Xe for a longer time in the column, which illustrates the Xe/Kr separation performance under dynamic conditions.
Details
- Title: Subtitle
- Hyper-Cross-linked Porous Organic Frameworks with Ultramicropores for Selective Xenon Capture
- Creators
- Debanjan Chakraborty - Indian Institute of Science Education and Research PuneShyamapada Nandi - Indian Institute of Science Education and Research PuneMichael A. Sinnwell - Pacific Northwest National LaboratoryJian Liu - Pacific Northwest National LaboratoryRinku Kushwaha - Indian Institute of Science Education and Research PunePraveen K. Thallapally - Pacific Northwest National LaboratoryRamanathan Vaidhyanathan - Indian Institute of Science Education and Research Pune
- Resource Type
- Journal article
- Publication Details
- ACS applied materials & interfaces, Vol.11(14), pp.13279-13284
- DOI
- 10.1021/acsami.9b01619
- PMID
- 30888146
- NLM abbreviation
- ACS Appl Mater Interfaces
- ISSN
- 1944-8244
- eISSN
- 1944-8252
- Publisher
- Amer Chemical Soc
- Number of pages
- 6
- Grant note
- DST; Department of Science & Technology (India) IISER Pune DST-Inspire; Department of Science & Technology (India)
- Language
- English
- Date published
- 04/10/2019
- Academic Unit
- Chemistry
- Record Identifier
- 9984936617202771
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