University of Minnesota
School of Physics & Astronomy
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Eric Ganz

New isoreticular metal-organic framework materials for high hydrogen storage capacity
T. Sagara, J. Ortony, and E. Ganz, Journal of Chemical Physics

Abstract

We propose new isoreticular metal-organic framework IRMOF materials to increase the hydrogen storage capacity at room temperature. Based on the potential-energy surface of hydrogen molecules on IRMOF linkers and the interaction energy between hydrogen molecules, we estimate the saturation value of hydrogen sorption capacity at room temperature. We discuss design criteria and propose new IRMOF materials that have high gravimetric and volumetric hydrogen storage densities. These new IRMOF materials may have gravimetric storage density up to 6.5 wt % and volumetric storage density up to 40 kg H2/m3 at room temperature.