Selective hydrogenation of cinnamaldehyde over Pt/ZrO2 catalyst modified by Cr, Mn, Fe, Co and Ni

被引：58

作者：

Han, XX ^{[1
]}

Zhou, RX ^{[1
]}

Yue, BH ^{[1
]}

Zheng, XM ^{[1
]}

机构：

[1] Zhejiang Univ, Inst Catalysis, Hangzhou 310028, Peoples R China

来源：

CATALYSIS LETTERS | 2006年 / 109卷 / 3-4期

关键词：

cinnamaldehyde; hydrocinnamaldehyde; phenylpropanol; cinnamyl alcohol; hydrogenation;

D O I：

10.1007/s10562-006-0080-4

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：

Hydrogenation properties of cinnamaldehyde (CMA) have been studied over Pt/ZrO2 and PtM/ZrO2 catalysts (M = Cr, Mn, Fe, Co and Ni) in ethanol at 343 K and 2.0 MPa. The effect of different content of Ni and base has also been investigated over PtNi/ZrO2 catalyst. With introduction of transition metals to Pt/ZrO2 catalyst shows a significant influence on the catalytic properties. PtCo/ZrO2 catalysts show the best yield of cinnamyl alcohol (CMO), and PtNi/ZrO2 catalyst shows good yield of hydrocinnamaldehyde (HCMA). In the presence of base solution, rate of the hydrogenation of CMA over PtNi/ZrO2(0.4 wt%) catalyst increases significantly and side reaction is remarkably inhibited. More bare metal atoms situated remote from the interface region on PtNi/ZrO2 catalyst surface are the reason of good selectivity of HCMA for PtNi/ZrO2 catalyst.

引用

页码：157 / 161

页数：5

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