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Issue 18, 2011
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Effect of NH2 and CF3 functionalization on the hydrogen sorption properties of MOFs

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Abstract

The hydrogen adsorption capacity and heat of adsorption at 77 K have been evaluated for several porous metal terephthalate MOFs (MIL-53(Fe), MIL-125(Ti) and UiO-66(Zr)), as well as in their –NH2 and –(CF3)2 functionalized isoreticular structures. The capacity of hydrogen is basically related to the textural properties of the solids and not to their composition. The heats of adsorption at low coverage are on the whole close to those usually reported for MOFs (6–7 kJ mol−1), except for the UiO-66(Zr) and MIL-53(Fe)-(CF3)2 analogues, whereas the presence of Lewis acid sites and/or a confinement effect enhances significantly the strength of interaction with hydrogen.

Graphical abstract: Effect of NH2 and CF3 functionalization on the hydrogen sorption properties of MOFs

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Publication details

The article was received on 20 Jan 2011, accepted on 01 Mar 2011 and first published on 22 Mar 2011


Article type: Paper
DOI: 10.1039/C1DT10115C
Dalton Trans., 2011,40, 4879-4881

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    Effect of NH2 and CF3 functionalization on the hydrogen sorption properties of MOFs

    C. Zlotea, D. Phanon, M. Mazaj, D. Heurtaux, V. Guillerm, C. Serre, P. Horcajada, T. Devic, E. Magnier, F. Cuevas, G. Férey, P. L. Llewellyn and M. Latroche, Dalton Trans., 2011, 40, 4879
    DOI: 10.1039/C1DT10115C

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