4.8 Article

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

Journal

ADVANCED FUNCTIONAL MATERIALS
Volume 23, Issue 28, Pages 3525-3530

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201203288

Keywords

Porous coordination polymer; chemical stability; CO2; CH4 separation; C2 hydrocarbons; CH4 separation; in situ DRIFT spectra

Funding

  1. Japan Society for the Promotion of Science (JSPS)
  2. ACT-C of the Japan Science and Technology Agency (JST)
  3. New Energy and Industrial Technology Development Organization (NEDO)
  4. JX Nippon Oil &Energy Corporation
  5. WPI iCeMS program
  6. World Premier International Research Initiative (WPI) of MEXT, Japan
  7. Grants-in-Aid for Scientific Research [25620043, 11F01340] Funding Source: KAKEN

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A new porous coordination polymer, ([La(BTB)H2O]solvent (1guest)), 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 degrees 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.

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