Porous Organic Cages for Sulfur Hexafluoride Separation

Tom Hasell; Marcin Miklitz; Andrew Stephenson; Marc A. Little; Samantha Y. Chong; Rob Clowes; Linjiang Chen; Daniel Holden; Gareth A. Tribello; Kim E. Jelfs; Andrew I. Cooper

doi:10.1021/jacs.5b11797

Porous Organic Cages for Sulfur Hexafluoride Separation

Tom Hasell, Marcin Miklitz, Andrew Stephenson, Marc A. Little, Samantha Y. Chong, Rob Clowes, Linjiang Chen, Daniel Holden, Gareth A. Tribello, Kim E. Jelfs, Andrew I. Cooper^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

195 Citations (Scopus)

Abstract

A series of porous organic cages is examined for the selective adsorption of sulfur hexafluoride (SF₆) over nitrogen. Despite lacking any metal sites, a porous cage, CC3, shows the highest SF₆/N₂ selectivity reported for any material at ambient temperature and pressure, which translates to real separations in a gas breakthrough column. The SF₆ uptake of these materials is considerably higher than would be expected from the static pore structures. The location of SF₆ within these materials is elucidated by X-ray crystallography, and it is shown that cooperative diffusion and structural rearrangements in these molecular crystals can rationalize their superior SF₆/N₂ selectivity.

Original language	English
Pages (from-to)	1653-1659
Number of pages	7
Journal	Journal of the American Chemical Society
Volume	138
Issue number	5
DOIs	https://doi.org/10.1021/jacs.5b11797
Publication status	Published - 10 Feb 2016

ASJC Scopus subject areas

Catalysis
General Chemistry
Biochemistry
Colloid and Surface Chemistry

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title = "Porous Organic Cages for Sulfur Hexafluoride Separation",

abstract = "A series of porous organic cages is examined for the selective adsorption of sulfur hexafluoride (SF6) over nitrogen. Despite lacking any metal sites, a porous cage, CC3, shows the highest SF6/N2 selectivity reported for any material at ambient temperature and pressure, which translates to real separations in a gas breakthrough column. The SF6 uptake of these materials is considerably higher than would be expected from the static pore structures. The location of SF6 within these materials is elucidated by X-ray crystallography, and it is shown that cooperative diffusion and structural rearrangements in these molecular crystals can rationalize their superior SF6/N2 selectivity.",

author = "Tom Hasell and Marcin Miklitz and Andrew Stephenson and Little, {Marc A.} and Chong, {Samantha Y.} and Rob Clowes and Linjiang Chen and Daniel Holden and Tribello, {Gareth A.} and Jelfs, {Kim E.} and Cooper, {Andrew I.}",

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AU - Hasell, Tom

AU - Miklitz, Marcin

AU - Stephenson, Andrew

AU - Little, Marc A.

AU - Chong, Samantha Y.

AU - Clowes, Rob

AU - Chen, Linjiang

AU - Holden, Daniel

AU - Tribello, Gareth A.

AU - Jelfs, Kim E.

AU - Cooper, Andrew I.

PY - 2016/2/10

Y1 - 2016/2/10

N2 - A series of porous organic cages is examined for the selective adsorption of sulfur hexafluoride (SF6) over nitrogen. Despite lacking any metal sites, a porous cage, CC3, shows the highest SF6/N2 selectivity reported for any material at ambient temperature and pressure, which translates to real separations in a gas breakthrough column. The SF6 uptake of these materials is considerably higher than would be expected from the static pore structures. The location of SF6 within these materials is elucidated by X-ray crystallography, and it is shown that cooperative diffusion and structural rearrangements in these molecular crystals can rationalize their superior SF6/N2 selectivity.

AB - A series of porous organic cages is examined for the selective adsorption of sulfur hexafluoride (SF6) over nitrogen. Despite lacking any metal sites, a porous cage, CC3, shows the highest SF6/N2 selectivity reported for any material at ambient temperature and pressure, which translates to real separations in a gas breakthrough column. The SF6 uptake of these materials is considerably higher than would be expected from the static pore structures. The location of SF6 within these materials is elucidated by X-ray crystallography, and it is shown that cooperative diffusion and structural rearrangements in these molecular crystals can rationalize their superior SF6/N2 selectivity.

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Porous Organic Cages for Sulfur Hexafluoride Separation

Abstract

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