A true nanocomposite Single crystalline Au nanoparticles on single crystalline Fe3O4 nanoparticles

被引：8

作者：

Cui, Zhi-Min ^{[2
]}

Chen, Zhe ^{[1
]}

Jiang, Ling-Yan ^{[1
]}

Song, Wei-Guo ^{[1
]}

Jiang, Lei ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Inst Chem, Natl Lab Mol Sci, Beijing 100190, Peoples R China

[2] Beihang Univ, Sch Chem & Environm, Beijing 100191, Peoples R China

来源：

MATERIALS LETTERS | 2011年 / 65卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Nanocomposites; Nanocrystalline materials; Crystal structure; CO oxidation; Fe3O4; nanoparticles; LOW-TEMPERATURE OXIDATION; CARBON-MONOXIDE; GOLD CATALYSTS; CO;

D O I：

10.1016/j.matlet.2010.09.032

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An Au/Fe3O4 nanocomposite catalyst was fabricated through a simple deposition-precipitation method The Au/Fe3O4 nanocomposite is a true nanocomposite that has single crystalline Au nanoparticles supported on single crystalline Fe3O4 nanoparticles Lattice fringes from both Au and Fe3O4 single nanoparticles were simultaneously observed by transmission electron microscope (TEM) This nanocomposite catalyst showed much high activity in low temperature CO oxidation reaction The Au/Fe3O4 nanocomposite catalyst reaches 100% CO conversion at 40 C In comparison Au/commercial Fe3O4 catalyst needs 375 C to convert CO This Au/Fe3O4 nanocomposite is an ideal sample to study synergetic effect between the catalyst and the support at nanoscale (C) 2010 Elsevier B V All rights reserved

引用

页码：82 / 84

页数：3

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