| Literature DB >> 21431158 |
Claudia Zlotea1, Delphine Phanon, Matjaz Mazaj, Daniela Heurtaux, Vincent Guillerm, Christian Serre, Patricia Horcajada, Thomas Devic, Emmanuel Magnier, Fermin Cuevas, Gérard Férey, Philip L Llewellyn, Michel Latroche.
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 -NH(2) and -(CF(3))(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)-(CF(3))(2) analogues, whereas the presence of Lewis acid sites and/or a confinement effect enhances significantly the strength of interaction with hydrogen.Entities:
Year: 2011 PMID: 21431158 DOI: 10.1039/c1dt10115c
Source DB: PubMed Journal: Dalton Trans ISSN: 1477-9226 Impact factor: 4.390