Study of supported bimetallic Pd-Pt catalysts.: Characterization and catalytic activity for toluene hydrogenation

被引：22

作者：

Micheaud-Especel, C

Bazin, D

Guérin, M

Marécot, P

Barbier, J

机构：

[1] Univ Poitiers, UMR CNRS 6503, Catalyse Chim Organ Lab, F-86022 Poitiers, France

[2] Univ Paris 11, LURE, F-91898 Orsay, France

来源：

REACTION KINETICS AND CATALYSIS LETTERS | 2000年 / 69卷 / 02期

关键词：

Pd-Pt bimetallic catalysts; toluene hydrogenation; sulfur resistance;

D O I：

10.1023/A:1005623127174

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：

Bimetallic Pd-Pt catalysts were prepared either by a surface redox reaction (RC catalysts) or by coimpregnation (CI catalysts). RC bimetallic catalysts show a higher sulfur resistance in the course of toluene hydrogenation in the presence of thiophene compared to monometallic palladium and CI bimetallic catalysts. A characterization of the RC catalysts by IR and EXAFS allows to propose a structure of the Pd-Pt crystallites which would explain these results.

引用

页码：209 / 216

页数：8

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