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

被引：0
|
作者：
Zhengping Hao
Lidun An
Hongli Wang
机构：
[1] Chinese Academy of Sciences,Research Center for Eco
[2] Chinese Academy of Sciences,Environmental Sciences
来源：
Science in China Series B: Chemistry | 2001年 / 44卷
关键词：
gold catalyst; possible catalytic active center; low-temperature CO oxidation;
D O I：
暂无
中图分类号：
学科分类号：
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 (Auζ+).
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页码：596 / 605
页数：9
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