Gold Nanoparticles Supported on Passivated Silica: Access to an Efficient Aerobic Epoxidation Catalyst and the Intrinsic Oxidation Activity of Gold

被引：109

作者：

Gajan, David ^{[2
,3
]}

Guillois, Kevin ^{[1
]}

Delichere, Pierre ^{[1
]}

Basset, Jean-Marie ^{[2
]}

Candy, Jean-Pierre ^{[2
]}

Caps, Valerie ^{[1
]}

Coperet, Christophe ^{[2
]}

Lesage, Anne ^{[3
]}

Emsley, Lyndon ^{[3
]}

机构：

[1] Univ Lyon, CNRS, Inst Rech Catalyse & Environm Lyon, F-69626 Villeurbanne, France

[2] Univ Lyon 1, Inst Chim Lyon, CNRS,CPE,ESCPE, C2P2 LCOMS UMR 5265, F-69616 Villeurbanne, France

[3] Univ Lyon, CNRS, ENS Lyon, UCB Lyon 1, F-69100 Villeurbanne, France

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2009年 / 131卷 / 41期

关键词：

LOW-TEMPERATURE OXIDATION; CO OXIDATION; HYDROCARBON OXIDATION; LASER VAPORIZATION; HYDROGEN; CARBON; OXYGEN; MECHANISM; AU/TIO2;

D O I：

10.1021/ja903730q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Well-defined and perfectly dispersed [(square SiO)Au-1] surface species supported on silica have been obtained via surface organometallic chemistry and transformed upon mild reduction (H-2, 300 degrees C) into small (1.8 +/- 0.6 nm) Au particles supported on silica passivated with SiMe3 functionalities. improved performance in liquid-phase aerobic epoxidation has been achieved, and the intrinsic activity of gold in oxidation is revealed.

引用

页码：14667 / +

页数：5

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