Core-Satellite Nanocomposite Catalysts Protected by a Porous Silica Shell: Controllable Reactivity, High Stability, and Magnetic Recyclability

被引：527

作者：

Ge, Jianping ^{[1
]}

Zhang, Qiao ^{[1
]}

Zhang, Terui ^{[1
]}

Yin, Yadong ^{[1
]}

机构：

[1] Univ Calif Riverside, Dept Chem, Riverside, CA 92521 USA

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2008年 / 47卷 / 46期

关键词：

gold; mesoporous materials; nanostructures; sol-gel processes; supported catalysts;

D O I：

10.1002/anie.200803968

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(Graph Presented) Limited holeliness: Core-satellite nanocomposite catalysts protected by a layer of mesoporous silica have been fabricated through the combination of simple sol-gel and etching processes. As superparamagnetic components are also incorporated, these composite structures are ideal recyclable catalysts. (see plot for performance in repeated cycles of 4-nitrophenol reduction). © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：8924 / 8928

页数：5

共 43 条

[1] Synthesis and reactivity of gold nanoparticles supported on transition metal doped mesoporous silica
Bore, Mangesh T.
Mokhonoana, M. Peter
Ward, Timothy L.
Coville, Neil J.
Datye, Abhaya K.
[J]. MICROPOROUS AND MESOPOROUS MATERIALS, 2006, 95 (1-3) : 118 - 125
[2] Gold-organic-inorganic high-surface-area materials as precursors of highly active catalysts
Budroni, Gerolamo
Corma, Avelino
[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2006, 45 (20) : 3328 - 3331
[3] COHENSTUART MA, 1982, J COLLOID INTERF SCI, V90, P321
[4] Comotti M., 2004, ANGEW CHEM, V116, P5936
[5] Chemoselective hydrogenation of nitro compounds with supported gold catalysts
Corma, Avelino
Serna, Pedro
[J]. SCIENCE, 2006, 313 (5785) : 332 - 334
[6] Superparamagnetic high-magnetization microspheres with an Fe3O4@SiO2 core and perpendicularly aligned mesoporous SiO2 shell for removal of microcystins
Deng, Yonghui
Qi, Dawei
Deng, Chunhui
Zhang, Xiangmin
Zhao, Dongyuan
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (01) : 28 - +
[7] Hierarchical magnetite/silica nanoassemblies as magnetically recoverable catalyst-supports
Ge, Jianping
Huynh, Tuan
Hu, Yongxing
Yin, Yadong
[J]. NANO LETTERS, 2008, 8 (03) : 931 - 934
[8] Superparamagnetic magnetite colloidal nanocrystal clusters
Ge, Jianping
Hu, Yongxing
Biasini, Maurizio
Beyermann, Ward P.
Yin, Yadong
[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2007, 46 (23) : 4342 - 4345
[9] Synthesis, characterization, and catalytic applications of a palladium-nanoparticle-cored dendrimer
Gopidas, KR
Whitesell, JK
Fox, MA
[J]. NANO LETTERS, 2003, 3 (12) : 1757 - 1760
[10] A general method to coat colloidal particles with silica
Graf, C
Vossen, DLJ
Imhof, A
van Blaaderen, A
[J]. LANGMUIR, 2003, 19 (17) : 6693 - 6700

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