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Updated: May 5, 2026

Synthesis and Characterization of Functionalized Metal-organic Frameworks
Published on: September 5, 2014
Microscale Determination of Binary Gas Adsorption Isotherms in MOFs
Karabi Nath1, Alauddin Ahmed2, Donald J Siegel2,3,4
1Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan48109, United States.
Abstract:
The experimental determination of mixed gas isotherms is challenging and thus rarely performed. Nevertheless, characterizing the performance of adsorbents toward mixtures of gases is critical in most adsorptive separations. Here, the utility of Raman spectroscopy in determining binary gas adsorption isotherms on the microscale with metal-organic framework (MOF) single crystals is demonstrated for quantifying C2H6/CH4 selectivity. The influence of pore size on sorption selectivity is determined experimentally. The technique also allows determination of kinetics of methane adsorption in MOFs, which is critical for refueling times in adsorbed natural gas storage.
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