Hollow Zn/Co Zeolitic Imidazolate Framework (ZIF) and Yolk-Shell Metal@Zn/Co ZIF Nanostructures

被引：115

作者：

Roesler, Christoph ^{[1
]}

Aijaz, Arshad ^{[2
]}

Turner, Stuart ^{[3
]}

Filippousi, Maria ^{[3
]}

Shahabi, Azar ^{[1
]}

Xia, Wei ^{[2
]}

Van Tendeloo, Gustaaf ^{[3
]}

Muhler, Martin ^{[2
]}

Fischer, Roland A. ^{[1
]}

机构：

[1] Ruhr Univ Bochum, Chair Inorgan Chem 2, Univ Str 150, D-44780 Bochum, Germany

[2] Ruhr Univ Bochum, Lab Ind Chem, Univ Str 150, D-44780 Bochum, Germany

[3] Univ Antwerp, EMAT, Groenenborgerlaan 171, B-2020 Antwerp, Belgium

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2016年 / 22卷 / 10期

关键词：

metal-organic frameworks; nanoparticles; yolk-shell nanostructures; zeolites; ORGANIC FRAMEWORK; CORE-SHELL; HETEROGENEOUS CATALYSIS; FABRICATION; SIZE; NANOSPHERES; CONVERSION;

D O I：

10.1002/chem.201503619

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Metal-organic frameworks (MOFs) feature a great possibility for a broad spectrum of applications. Hollow MOF structures with tunable porosity and multifunctionality at the nanoscale with beneficial properties are desired as hosts for catalytically active species. Herein, we demonstrate the formation of well-defined hollow Zn/Co-based zeolitic imidazolate frameworks (ZIFs) by use of epitaxial growth of Zn-MOF (ZIF-8) on preformed Co-MOF (ZIF-67) nanocrystals that involve in situ self-sacrifice/excavation of the Co-MOF. Moreover, any type of metal nanoparticles can be accommodated in Zn/Co-ZIF shells to generate yolk-shell metal@ZIF structures. Transmission electron microscopy and tomography studies revealed the inclusion of these nanoparticles within hollow Zn/Co-ZIF with dominance of the Zn-MOF as shell. Our findings lead to a generalization of such hollow systems that are working effectively to other types of ZIFs.

引用

页码：3304 / +

页数：8

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