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

被引：266

作者：

Zlotea, Claudia ^{[1
]}

Phanon, Delphine ^{[2
]}

Mazaj, Matjaz ^{[3
,4
]}

Heurtaux, Daniela ^{[3
]}

Guillerm, Vincent ^{[3
]}

Serre, Christian ^{[3
]}

Horcajada, Patricia ^{[3
]}

Devic, Thomas ^{[3
]}

Magnier, Emmanuel ^{[3
]}

Cuevas, Fermin ^{[1
]}

Ferey, Gerard ^{[3
]}

Llewellyn, Philip L. ^{[2
]}

Latroche, Michel ^{[1
]}

机构：

[1] CNRS, UMR 7182, Inst Chim & Mat Paris Est, F-94320 Thiais, France

[2] CNRS, UMR 6264, Lab Chim Provence, F-13397 Marseille, France

[3] Univ Versailles St Quentin, CNRS, UMR 8180, Inst Lavoisier, F-78035 Versailles, France

[4] Natl Inst Chem, Ljubljana 1000, Slovenia

来源：

DALTON TRANSACTIONS | 2011年 / 40卷 / 18期

关键词：

METAL-ORGANIC FRAMEWORKS; POSTSYNTHETIC COVALENT MODIFICATION; ADSORPTION PROPERTIES; POROUS SOLIDS; STORAGE; SITES; OXIDE;

D O I：

10.1039/c1dt10115c

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

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.

引用

页码：4879 / 4881

页数：3

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