Carborane-based metal-organic framework with high methane and hydrogen storage capacities

Robert D. Kennedy, Vaiva Krungleviciute, Daniel J. Clingerman, Joseph E. Mondloch, Yang Peng, Christopher E. Wilmer, Amy A. Sarjeant, Randall Q. Snurr, Joseph T. Hupp, Taner Yildirim, Omar K. Farha, Chad A. Mirkin

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Abstract

A Cu-carborane-based metal-organic framework (MOF), NU-135, which contains a quasi-spherical para-carborane moiety, has been synthesized and characterized. NU-135 exhibits a pore volume of 1.02 cm3/g and a gravimetric BET surface area of ca. 2600 m2/g, and thus represents the first highly porous carborane-based MOF. As a consequence of the unique geometry of the carborane unit, NU-135 has a very high volumetric BET surface area of ca. 1900 m2/cm3. CH4, CO2, and H2 adsorption isotherms were measured over a broad range of pressures and temperatures and are in good agreement with computational predictions. The methane storage capacity of NU-135 at 35 bar and 298 K is ca. 187 v STP/v. At 298 K, the pressure required to achieve a methane storage density comparable to that of a compressed natural gas (CNG) tank pressurized to 212 bar, which is a typical storage pressure, is only 65 bar. The methane working capacity (5-65 bar) is 170 vSTP/v. The volumetric hydrogen storage capacity at 55 bar and 77 K is 49 g/L. These properties are comparable to those of current record holders in the area of methane and hydrogen storage. This initial example lays the groundwork for carborane-based materials with high surface areas.

Original languageEnglish
Pages (from-to)3539-3543
Number of pages5
JournalChemistry of Materials
Volume25
Issue number17
DOIs
Publication statusPublished - Sep 10 2013

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Keywords

  • MOF
  • boron
  • carborane
  • coordination polymer
  • hydrogen
  • metal-organic framework
  • methane
  • porous

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

Cite this

Kennedy, R. D., Krungleviciute, V., Clingerman, D. J., Mondloch, J. E., Peng, Y., Wilmer, C. E., Sarjeant, A. A., Snurr, R. Q., Hupp, J. T., Yildirim, T., Farha, O. K., & Mirkin, C. A. (2013). Carborane-based metal-organic framework with high methane and hydrogen storage capacities. Chemistry of Materials, 25(17), 3539-3543. https://doi.org/10.1021/cm4020942