Mesoporous Fluorinated Metal–Organic Frameworks with Exceptional Adsorption of Fluorocarbons and CFCs |
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| Authors: | Dr Teng‐Hao Chen Dr Ilya Popov Dr Watchareeya Kaveevivitchai Dr Yu‐Chun Chuang Dr Yu‐Sheng Chen Prof Allan J Jacobson Prof Ognjen Š Miljanić |
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| Institution: | 1. Department of Chemistry, University of Houston, 112 Fleming Building, Houston, TX 77204‐5003 (USA);2. National Synchrotron Radiation Research Center, Hsinchu, 30076 (Taiwan);3. Center for Advanced Radiation Source (ChemMatCARS), The University of Chicago, c/o APS/ANL, 9700 South Cass Drive, Argonne, IL 60439 (USA);4. Texas Center for Superconductivity, 202 UH Science Center, Houston, TX 77204‐5002 (USA) |
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| Abstract: | Two mesoporous fluorinated metal–organic frameworks (MOFs) were synthesized from extensively fluorinated tritopic carboxylate‐ and tetrazolate‐based ligands. The tetrazolate‐based framework MOFF‐5 has an accessible surface area of 2445 m2 g?1, the highest among fluorinated MOFs. Crystals of MOFF‐5 adsorb hydrocarbons, fluorocarbons, and chlorofluorocarbons (CFCs)—the latter two being ozone‐depleting substances and potent greenhouse species—with weight capacities of up to 225 %. The material exhibits an apparent preference for the adsorption of non‐spherical molecules, binding unusually low amounts of both tetrafluoromethane and sulfur hexafluoride. |
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| Keywords: | adsorption C H activation chlorofluorocarbons fluorocarbons metal– organic frameworks |
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