ACTIVITY AND SELECTIVITY OF NIPT/SIO2 CATALYSTS FOR HYDROGENATION OF CROTONALDEHYDE

被引：58
|
作者：
RAAB, CG [1 ]
LERCHER, JA [1 ]
机构：
[1] VIENNA TECH UNIV,CHRISTIAN DOPPLER LAB HETEROGENE KATALYSE,A-1060 VIENNA,AUSTRIA
来源：
JOURNAL OF MOLECULAR CATALYSIS | 1992年 / 75卷 / 01期
关键词：
D O I：
10.1016/0304-5102(92)80104-O
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 crotonaldehyde over a series of Pt/Ni catalysts was investigated. While the rate of hydrogenation to butyraldehyde was a monotonic function of the Ni concentration, the rate to crotyl alcohol was related to the concentration of the PtNi alloy. The selectivity to hydrogenation of the carbonyl group was attributed to the presence of polar surfaces (negatively charged Pt and positively charged Ni). Two independent sites, catalyzing the hydrogenation of crotonaldehyde to butyraldehyde and to crotyl alcohol, were established.
引用
收藏
页码：71 / 79
页数：9
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