Microporous metal-organic frameworks with high gas sorption and separation capacity

Jeong Yong Lee, David H. Olson, Long Pan, Thomas J. Emge, Jing Li

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272 Citations (Scopus)

Abstract

The design, synthesis, and structural characterization of two microporous metal-organic framework structures, [M(bdc)(ted)0.5] ·2DMF·0.2H2 (M = Zn (1), Cu (2); H2bdc = 1,4-benzenedicarboxylic acid; ted = triethylenediamine; DMF: tyN-dimethylformamide) is reported. The pore characteristics and gas sorption properties of these compounds are investigated at cryogenic temperatures, room temperature, and higher temperatures by experimentally measuring argon, hydrogen, and selected hydrocarbon adsorption/desorption isotherms. These studies show that both compounds are highly porous with a pore volume of 0.65 (1) and 0.52 cm3 g-1 (2). The amount of the hydrogen uptake, 2.1 wt % (1) and 1.8 wt % (2) at 77 K (1 atm; 1 atm = 101325 Pa), places them among the group of metal-organic frameworks (MOFs) having the highest H2 sorption capacity. [Zn(bdc)(ted)0.5]·2 DMF·0.2 H2O adsorbs a very large amount of hydrocarbons, including methanol, ethanol, dimethylether (DME), n-hexane, cyclohexane, and benzene, giving the highest sorption values among all metal-organic based porous materials reported to date. In addition, these materials hold great promise for gas separation.

Original languageEnglish
Pages (from-to)1255-1262
Number of pages8
JournalAdvanced Functional Materials
Volume17
Issue number8
DOIs
Publication statusPublished - May 21 2007

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ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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