A Facile Synthesis of Monodisperse Au Nanoparticles and Their Catalysis of CO Oxidation

被引：382

作者：

Peng, Sheng ^{[1
]}

Lee, Youngmin ^{[1
]}

Wang, Chao ^{[1
]}

Yin, Hongfeng ^{[2
]}

Dai, Sheng ^{[2
]}

Sun, Shouheng ^{[1
]}

机构：

[1] Brown Univ, Dept Chem, Providence, RI 02912 USA

[2] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA

来源：

NANO RESEARCH | 2008年 / 1卷 / 03期

基金：

美国国家科学基金会;

关键词：

Nanoparticle synthesis; Au nanoparticles; catalysis; CO oxidation;

D O I：

10.1007/s12274-008-8026-3

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：

Monodisperse Au nanoparticles (NPs) have been synthesized at room temperature via a burst nucleation of Au upon injection of the reducing agent t-butylamine-borane complex into a 1, 2, 3, 4-tetrahydronaphthalene solution of HAuCl(4)center dot 3H(2)O in the presence of oleylamine. The as-synthesized Au NPs show size-dependent surface plasmonic properties between 520 and 530 nm. They adopt an icosahedral shape and are polycrystalline with multiple-twinned structures. When deposited on a graphitized porous carbon support, the NPs are highly active for CO oxidation, showing 100% CO conversion at -45 degrees C.

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页码：229 / 234

页数：6

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