The Effect of Chemical Reducing Agents in the Synthesis of Sol-Gel Ru-Sn Catalysts: Selective Hydrogenation of Cinnamaldehyde

被引：0

作者：

J. Hájek

P. Mäki-Arvela

E. Toukoniitty

N. Kumar

T. Salmi

D. Yu. Murzin

L. Červený

I. Paseka

E. Laine

机构：

[1] Institute of Chemical Technology,Department of Organic Technology

[2] Institute of Inorganic Chemistry,Department of Physics

[3] Academy of Sciences of the Czech Republic,undefined

[4] Rez,undefined

[5] University of Turku,undefined

[6] Turku/Åbo,undefined

来源：

Journal of Sol-Gel Science and Technology | 2004年 / 30卷

关键词：

chemical reduction; sol-gel bimetallic catalyst; cinnamaldehyde; cinnamylalcohol; selective hydrogenation;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The influence of chemical reduction on the properties of bimetallic Ru-Sn/SiO2 catalyst was studied. Prepared sol-gel catalysts were reduced by NaBH4, KBH4, H2, and CH2O. Physical and catalytic properties of reduced catalysts were compared to non-reduced ones in the liquid-phase hydrogenation of cinnamaldehyde. The influence of boron impregnation was investigated. The observed hydrogenation activity and selectivity towards cinnamylalcohol were effected by reduction pretreatment. The NaBH4 reduced catalyst exhibited the highest activity and selectivity. Reduction pretreatment influenced the pore sizes, active metal surface as well as content of carbon impurities. Traces of the reduction agents were detected in the catalysts. Boron impregnation presumably improved the catalyst activity, but had a minor effect on the selectivity.

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页码：187 / 195

页数：8

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