Influence of the microscopic properties of the support on the catalytic activity of Au/ZnO, Au/ZrO2, Au/Fe2O3, Au/Fe2O3-ZnO, Au/Fe2O3-ZrO2 catalysts for the WGS reaction

被引:154
|
作者
Tabakova, T [1 ]
Idakiev, V [1 ]
Andreeva, D [1 ]
Mitov, I [1 ]
机构
[1] Bulgarian Acad Sci, Inst Catalysis, BU-1113 Sofia, Bulgaria
关键词
gold catalysts; WGS reaction; state and structure of the support;
D O I
10.1016/S0926-860X(00)00463-4
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
It has been established that the gold catalysts on well crystallized supports, Au/Fe2O3 and Au/ZrO2, display higher catalytic activity in the water gas shift (WGS) reaction in comparison with the samples on amorphous and not well crystallized supports - Au/ZnO, Au/ZrO2, Au/Fe2O3-ZnO and Au/Fe2O3-ZrO2 It could be concluded that the catalytic activity of the gold/metal oxide catalysts depends strongly not only on the dispersion of the gold particles but also on the state and the structure of the supports. (C) 2000 Elsevier Science B.V, All rights reserved.
引用
收藏
页码:91 / 97
页数:7
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