Stable polyoxometalate insertion within the mesoporous metal organic framework MIL-100(Fe)

被引：257

作者：

Canioni, Romain ^{[1
]}

Roch-Marchal, Catherine ^{[1
]}

Secheresse, Francis ^{[1
]}

Horcajada, Patricia ^{[1
]}

Serre, Christian ^{[1
]}

Hardi-Dan, Menaschi ^{[1
]}

Ferey, Gerard ^{[1
]}

Greneche, Jean-Marc ^{[2
]}

Lefebvre, Frederic ^{[3
]}

Chang, Jong-San ^{[4
]}

Hwang, Young-Kyu ^{[4
]}

Lebedev, Oleg ^{[5
]}

Turner, Stuart ^{[6
]}

Van Tendeloo, Gustaaf ^{[6
]}

机构：

[1] Univ Versailles St Quentin Yvelines, ILV, Inst Lavoisier Versailles, UMR 8180, F-78035 Versailles, France

[2] Univ Maine, CNRS, Lab Phys Etat Condense LPEC, UMR 6087, F-72085 Le Mans, France

[3] CPE Lyon, Lab C2P2, Equipe Chim Organometall Surface, LCOMS,UMR 526, F-69616 Villeurbanne, France

[4] Korea Res Inst Chem Technol, Catalysis Ctr Mol Engn, Taejon 305600, South Korea

[5] CNRS ENSICAEN, Lab CRISMAT, UMR 6508, F-14050 Caen 4, France

[6] Univ Antwerp, Electron Microscopy Mat Res EMAT, B-2020 Antwerp, Belgium

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2011年 / 21卷 / 04期

关键词：

OXIDATION; CATALYSTS; PORES; ACID; CARBOXYLATE; MOLYBDATE; ELECTRON; CRYSTAL;

D O I：

10.1039/c0jm02381g

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Successful encapsulation of polyoxometalate (POM) within the framework of a mesoporous iron trimesate MIL-100(Fe) sample has been achieved by direct hydrothermal synthesis in the absence of fluorine. XRPD, P-31 MAS NMR, IR, EELS, TEM and Fe-57 Mossbauer spectrometry corroborate the insertion of POM within the cavities of the MOF. The experimental Mo/Fe ratio is 0.95, in agreement with the maximum theoretical amount of POM loaded within the pores of MIL-100(Fe), based on steric hindrance considerations. The POM-MIL-100(Fe) sample exhibits a pore volume of 0.373 cm(3) g(-1) and a BET surface area close to 1000 m(2) g(-1), indicating that small gas molecules can easily diffuse inside the cavities despite the presence of heavy phosphomolybdates. These latter contribute to the decrease in the overall surface area, due to the increase in molar weight, by 65%. Moreover, the resulting Keggin containing MIL-100(Fe) solid is stable in aqueous solution with no POM leaching even after more than 2 months. In addition, no exchange of the Keggin anions by tetrabutylammonium perchlorate in organic media has been observed.

引用

页码：1226 / 1233

页数：8

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