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Selective CO 2 Adsorption By Methyl‐Functionalized Metal‐Organic Framework
Author(s) -
Ma Deyun,
Li Zhi,
Jiang Fei,
Ma Yanhua,
Lin Wanchun,
Wen Meiling,
Liu Bei,
Xu Jun
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201701610
Subject(s) - sorption , adsorption , selectivity , thermal stability , metal organic framework , molecule , water vapor , powder diffraction , chemistry , metal , porosity , ethanol , selective adsorption , materials science , chemical engineering , inorganic chemistry , organic chemistry , crystallography , catalysis , engineering
A hydrophobic porous MOF functionalized by methyl groups with a chemical formula {[Cd 2 (oba) 2 (dmbpy)(H 2 O)]⋅2(EtOH)⋅4(H 2 O)} n ( 1 ) (oba=4,4′‐oxydibenzoate, dmbpy=3,3′‐dimethyl‐4,4′‐bipyridine, EtOH=ethanol) was synthesized and structurally characterized. 1 exhibits a 3D framework with a 1D channel parallel to the c axis. TGA, PXRD, and water vapor sorption results show high thermal and water stability for the framework. More importantly, 1 shows a very high adsorption selectivity to CO 2 as compared to other small gas molecules (e. g. CH 4 , N 2 , O 2 , CO and H 2 ) at 298 K based on the results of simulations and experiments.