Catalytic performance and structural characterization of ferric oxide and its composite oxides supported gold catalysts for low-temperature CO oxidation

被引：13
|
作者：
Hao, ZP
An, LD
Wang, HL
机构：
[1] Chinese Acad Sci, Ecoenvironm Sci Res Ctr, Beijing 100085, Peoples R China
[2] Chinese Acad Sci, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China
来源：
SCIENCE IN CHINA SERIES B-CHEMISTRY | 2001年 / 44卷 / 06期
关键词：
gold catalyst; possible catalytic active center; low-temperature CO oxidation;
D O I：
10.1007/BF02891684
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The preparation and catalytic activity of ferric oxide and its composite oxides supported gold catalysts for low-temperature CO oxidation were investigated detailedly, and characterized extensively by XRD, XPS, TPR, EC and XAFS techniques. It was found that containing highly dispersed Au of partially oxidized state, these nano-structured oxides supported Au/Fe2O3 and Au/NiFe2O4 catalysts had higher low-temperature activities. The possible catalytic active center is the gold of partially oxidized state (Auzeta+).
引用
收藏
页码：596 / 605
页数：10
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