Role of Pt Oxidation State on the Activity and Selectivity for Crotonaldehyde Hydrogenation Over Pt–Sn/Al2O3–La and Pt–Pb/Al2O3–La Catalysts

被引：0

作者：

C. Guzmán

G. Del Angel

J. L. G. Fierro

V. Bertin

机构：

[1] Universidad Autónoma Metropolitana-Iztapalapa,Departamento de Química

[2] CSIC,Instituto de Catálisis y Petroquímica

来源：

Topics in Catalysis | 2010年 / 53卷

关键词：

Crotonaldehyde hydrogenation; Pt–Sn/Al; O; –La; O; catalysts; Pt–Pb/Al; O; –La; O; catalysts; Selective hydrogenation; XPS spectra;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Pt–Sn/ALa10 and Pt–Pb/ALa10 catalysts (10 wt% La2O3) were studied in the selective hydrogenation of crotonaldehyde. Oxidized Pt2+ and reduced Pt0 species were identified by XPS on the bimetallic catalysts. High selectivity to crotylalcohol was obtained on the Pt–Pb/ALa10 catalyst where an electron transfer effect from Pb to Pt was proposed. For the Pt–Sn/ALa10 catalyst the formation of Pt–SnOx–La2O3 complexes showing low activity and low selectivity was inferred.

引用

页码：1142 / 1144

页数：2

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