Gold based catalysts on ceria and ceria-alumina for WGS reaction (WGS Gold catalysts)

被引：41

作者：

Andreeva, Donka

Ivanov, Ivan

Ilieva, Lyuba

Sobczak, Janusz W.

Avdeev, Georgy

Petrov, Kostadin

机构：

[1] BAS, Inst Catalysis, Sofia 1113, Bulgaria

[2] Polish Acad Sci, Inst Phys Chem, PL-01224 Warsaw, Poland

[3] BAS, Inst Inorgan Chem, Sofia 1113, Bulgaria

来源：

TOPICS IN CATALYSIS | 2007年 / 44卷 / 1-2期

关键词：

gold; WGS; active sites; ceria-alumina; mechano-chemical activation;

D O I：

10.1007/s11244-007-0291-y

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Gold catalysts supported on ceria-alumina have been studied in WGS reaction. A high and stable activity was established for the catalysts supported on ceria-alumina, prepared by mechanochemical activation in comparison to the corresponding samples, where ceria-alumina support was prepared by coprecipitation. The catalysts were characterized by means of XRD, TPR, Raman and XPS spectroscopy. A correlation between WGS activity and the redox activity was found. On the basis of the results obtained a model of the reaction mechanism and of active sites was proposed.

引用

页码：173 / 182

页数：10

共 22 条

[1] Gold supported on ceria and ceria-alumina promoted by molybdena for complete benzene oxidation [J].