학술논문
Influence of promoters on the performance of Au/MnOx and Pt/SnOx /SiO2 low-temperature CO oxidation catalysts
Document Type
Original Paper
Source
Reaction Kinetics and Catalysis Letters. May 1996 58(1):19-26
Subject
Language
English
ISSN
0133-1736
1588-2837
1588-2837
Abstract
The influence of promoters on Pt/SnOx /SiO2 and Au/MnOx low-temperature CO oxidation catalysts has been investigated under stoichiometric reaction conditions with no CO2 added to the feed gas. The performance of Pt/SnOx /SiO2 catalysts is improved significantly by the addition of 1 wt.% Fe but reduced by the addition of 5 wt.%Fe, 1 wt.% Sb, 5 wt.% Sb, 1 wt.% As, 5 wt.%As and 1.8 wt.% P. The performance of Au/MnOx is improved significantly by the addition of 1 at.% Ce but reduced by the addition of 1 at.% Co. For the catalysts and conditions examined, the Au/MnOx catalysts are superior to the Pt/SnOx /SiO2 catalysts with respect to both activity and decay characteristics.