Hydrogenation of citral on activated carbon and high-surface-area graphite-supported ruthenium catalysts modified with iron

被引：78

作者：

Bachiller-Baeza, B

Guerrero-Ruiz, A

Wang, P

Rodríguez-Ramos, I

机构：

[1] CSIC, Inst Catalisis & Petroleoquim, E-28049 Madrid, Spain

[2] Univ Nacl Educ Distancia, Dept Quim Inorgan & Tecn, Madrid 28040, Spain

来源：

JOURNAL OF CATALYSIS | 2001年 / 204卷 / 02期

关键词：

microcalorimetry; citral; hydrogenation; ruthenium catalysts; iron; carbon supports;

D O I：

10.1006/jcat.2001.3394

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：

The hydrogenation of citral has been performed over Ru-Fe catalysts supported on activated carbon and on high-surface-area graphite. It was found that selectivity to unsaturated alcohols is independent of the carbonaceous support used for ruthenium catalysts. The addition of iron enhances selectivity to unsaturated alcohols (geraniol and nerol) in a manner similar for both ruthenium catalysts, becoming maximum for the highest iron loading. Calorimetric experiments give some evidence about alloy formation in ruthenium catalysts promoted with iron. It is inferred that the surface polarity of the alloyed particles promotes the selective hydrogenation of citral toward unsaturated alcohols. (C) 2001 Elsevier Science.

引用

页码：450 / 459

页数：10

共 43 条

[1] Role of the residual chlorides in platinum and ruthenium catalysts for the hydrogenation of α,β-unsaturated aldehydes [J].