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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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Article information


Submitted
20 Jan 2011
Accepted
01 Mar 2011
First published
22 Mar 2011

Dalton Trans., 2011,40, 4879-4881
Article type
Paper

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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