High CO2/CH4 and C2 Hydrocarbons/CH4 Selectivity in a Chemically Robust Porous Coordination Polymer

A new porous coordination polymer, ([La(BTB)H2O]·solvent (1⊃guest)), is synthesized. Gas adsorption, ideal adsorbed solution theory (IAST) and breakthrough experiments of it exhibits high CH4 separation capability toward CO2 and C2 hydrocarbons at 273 K. In addition, this also shows good water and c...

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Bibliographic Details
Published in:Advanced functional materials 2013-07, Vol.23 (28), p.3525-3530
Main Authors: Duan, Jingui, Higuchi, Masakazu, Horike, Satoshi, Foo, Maw Lin, Rao, Koya Prabhakara, Inubushi, Yasutaka, Fukushima, Tomohiro, Kitagawa, Susumu
Format: Article
Language:English
Subjects:
C2 hydrocarbons
CH4 separation
chemical stability
CO2/CH4 separation
in situ DRIFT spectra
Porous coordination polymer
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Summary:A new porous coordination polymer, ([La(BTB)H2O]·solvent (1⊃guest)), is synthesized. Gas adsorption, ideal adsorbed solution theory (IAST) and breakthrough experiments of it exhibits high CH4 separation capability toward CO2 and C2 hydrocarbons at 273 K. In addition, this also shows good water and chemical stability, in particular, it is stable at pH = 14 at 100 °C, which is unprecedented for carboxylate‐based porous coordination polymers. Furthermore, the effective adsorption site for separation is revealed by using an in situ diffuse reflectance IR fourier transform (DRIFT) spectra study. A new porous coordination polymer, ([La(BTB)H2O]·solvent (1⊃guest)), exhibits high CH4 separation capability toward CO2 and C2 hydrocarbons at room temperature. In particular, it shows good water and chemical stability and is stable at pH = 14 at 100 °C.
ISSN:1616-301X
1616-3028
DOI:10.1002/adfm.201203288