Au nanoparticles dispersed on functionalized mesoporous silica for selective oxidation of cyclohexane

被引：31

作者：

Wu, Pingping ^{[1
,2
]}

Bai, Peng ^{[1
]}

Loh, Kian Ping ^{[2
,3
]}

Zhao, X. S. ^{[1
,2
]}

机构：

[1] Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 117576, Singapore

[2] Natl Univ Singapore, Nanosci & Nanotechnol Initiat, Singapore 117576, Singapore

[3] Natl Univ Singapore, Dept Chem, Singapore 117543, Singapore

来源：

CATALYSIS TODAY | 2010年 / 158卷 / 3-4期

关键词：

Gold nanoparticle; Functionalization; Mesoporous silica; Cyclohexane oxidation; LIQUID-PHASE OXIDATION; GOLD NANOPARTICLES; CATALYTIC-OXIDATION; THERMAL-STABILITY; MOLECULAR-OXYGEN; SIZE; CO; ALUMINOPHOSPHATES; PERFORMANCE; ALPHA-FE2O3;

D O I：

10.1016/j.cattod.2010.03.027

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A one-pot method was used to synthesize vinyl-functionalized mesoporous silica with highly dispersed gold nanoparticles. Samples were characterized using physical adsorption of nitrogen, X-ray diffraction, transmission electronic microscope, solid-state nuclear magnetic resonance, X-ray photoelectron spectrometer, and ultraviolet-visible spectrometer. It was found that Au was anchored on the vinyl functionality as highly dispersed and uniform nanoparticles. Catalytic results showed that such Au nanoparticles displayed very high catalytic activity and selectivity in solvent-free selective oxidation of cyclohexane with molecular oxygen. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：220 / 227

页数：8

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