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

• DOI: 10.1002/adfm.201203288
• Publication Date: 2013-02-26T09:28:34Z
• Authors: Jingui Duan; Masakazu Higuchi; Satoshi Horike; Maw Lin Foo; Koya Prabhakara Rao; Yasutaka Inubushi; Tomohiro Fukushima; Susumu Kitagawa
• Keywords: Carboxylate; Diffuse reflection; Selective adsorption; Chemical Stability; Coordination polymer

Abstract A new porous coordination polymer, ([La(BTB)H 2 O]·solvent ( 1 ⊃guest)), is synthesized. Gas adsorption, ideal adsorbed solution theory (IAST) and breakthrough experiments of it exhibits high CH 4 separation capability toward CO C2 hydrocarbons at 273 K. In addition, this also shows good water chemical stability, in particular, stable pH = 14 100 °C, which unprecedented for carboxylate‐based polymers. Furthermore, the effective adsorption site revealed by using an situ diffuse reflectance IR fourier transform (DRIFT) spectra study.