The influence of alkali metals on the activity of supported ruthenium catalysts for the water-gas shift reaction

被引：26
|
作者：
Basinska, A
Domka, F
机构：
来源：
CATALYSIS LETTERS | 1997年 / 43卷 / 1-2期
关键词：
ruthenium catalysts; water-gas shift reaction; impregnation with alkali metals; iron oxides and hydroxides;
D O I：
10.1023/A:1018909715960
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：
This paper presents the results of the studies on the influence of alkali metals on the activity of ruthenium catalysts, which were supported on the products of alpha- and delta-iron oxide-hydroxide calcination. Modification of these supports with alkali metals, in particular potassium, rubidium and cesium, prior to deposition of ruthenium was found to increase the activity of Ru/Fe2O3 catalysts in the water-gas shift reaction. It was also established that the activity and stability of catalysts prepared on iron oxide obtained from alpha-FeOOH increased when the latter was modified with sodium ions. The favourable effect of sodium on the activity of the catalysts was shown to appear at a certain proportion of the base to the active component, i.e. ruthenium.
引用
收藏
页码：59 / 61
页数：3
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