Vital role of moisture in the catalytic activity of supported gold nanoparticles

被引：593
|
作者：
Daté, M
Okumura, M
Tsubota, S
Haruta, M
机构：
[1] Natl Inst Adv Ind Sci & Technol, Res Inst Green Technol, AIST, Tsukuba, Ibaraki 3058569, Japan
[2] Osaka Univ, Dept Chem, Grad Sch Sci, Toyonaka, Osaka 5600043, Japan
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2004年 / 43卷 / 16期
关键词：
gold; heterogeneous catalysis; nanotechnology; oxidation;
D O I：
10.1002/anie.200453796
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Supported gold nanoparticles exhibit high catalytic activity not only at low temperatures, but also under the presence of moisture. The effect of moisture on CO oxidation over Au/TiO2, Au/Al2O 3, and Au/SiO2 was studied at 273 K. It was found that the catalytic activities are enhanced by moisture by up to two orders of magnitude, and that the moisture effect depends on the type of oxide support (see picture, TOF = turnover frequency).
引用
收藏
页码：2129 / 2132
页数：4
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