Switching Kr/Xe Selectivity with Temperature in a Metal-Organic Framework
Journal Article
·
· Journal of the American Chemical Society
Krypton (Kr) and xenon (Xe) adsorption on two partially fluorinated metal-organic frameworks (FMOFCu and FMOFZn) with different cavity size and topologies were reported. FMOFCu shows an inversion in sorption selectivity toward Kr at temperatures below 0 C while FMOFZn does not. The 1D microtubes packed along the (101) direction connected through small bottleneck windows in FMOFCu appear to be the reason for this peculiar behavior. The FMOFCu shows an estimated Kr/Xe selectivity of 36 at 0.1 bar.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1044480
- Report Number(s):
- PNNL-SA-85894; JACSAT; AF5805000; TRN: US201214%%455
- Journal Information:
- Journal of the American Chemical Society, Vol. 134, Issue 22; ISSN 0002-7863
- Country of Publication:
- United States
- Language:
- English
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