Temporal analysis of products (TAP) study on low temperature carbon monoxide oxidation on supported Au catalysts

被引:5
|
作者
Olea, Maria
Tada, Mizuki
Iwasawa, Yasuhiro
机构
[1] Univ Ghent, Dept Chem Engn, Petrochem Tech Lab, B-9000 Ghent, Belgium
[2] Univ Tokyo, Grad Sch Sci, Dept Chem, Bunkyo Ku, Tokyo 1130033, Japan
关键词
supported gold catalysts; carbon monoxide oxidation; reaction mechanism; TAP;
D O I
10.1007/s11244-007-0287-7
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
TAP (temporal analysis of products) technique was used to clarify the controversial mechanism for low-temperature CO oxidation on supported An catalysts involving unidentified moisture effects on the performances. The unique TAP transient technique, along the use of a specially prepared, highly active Au/Ti(OH)(4)* catalyst, provided the information and characterization of each elementary step involving weak and reversible CO adsorption, strong and molecular O-2 adsorption, and their surface reaction, which are suppressed by the coexistence of water vapor.
引用
收藏
页码:137 / 143
页数:7
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