Effect of NH2 and CF3 functionalization on the hydrogen sorption properties of MOFs |
| |
| Authors: | Zlotea Claudia Phanon Delphine Mazaj Matjaz Heurtaux Daniela Guillerm Vincent Serre Christian Horcajada Patricia Devic Thomas Magnier Emmanuel Cuevas Fermin Férey Gérard Llewellyn Philip L Latroche Michel |
| |
| Institution: | Institut de Chimie et des Matériaux de Paris-Est, CNRS UMR 7182, 2-8, Rue Henri Dunant, 94320, Thiais, France. |
| |
| 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. |
| |
| Keywords: | |
| 本文献已被 PubMed 等数据库收录！ |
|
