Pd and Pt catalysts modified by alloying with Au in the selective oxidation of alcohols

被引：288

作者：

Dimitratos, Nikolaos

Villa, Alberto

Wang, Di

Porta, Francesca

Su, Dangsheng

Prati, Laura

机构：

[1] Univ Milan, Dipartimento Chim Inorgan Metallorgan & Anali, I-20133 Milan, Italy

[2] Univ Milan, ISTM, Ctr Excellence CIMAINA, I-20133 Milan, Italy

[3] Max Planck Gesell, Fritz Haber Inst, Dept Inorgan Chem, ELCASS, D-14195 Berlin, Germany

来源：

JOURNAL OF CATALYSIS | 2006年 / 244卷 / 01期

关键词：

alcohol oxidation; gold-based catalyst; gold/palladium catalyst; gold/platinum catalyst; alloyed catalyst;

D O I：

10.1016/j.jcat.2006.08.019

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 use of gold on promoting PGM (platinum group metal) catalysts for the selective oxidation of various primary alcohols under mild conditions was investigated. Au/Pd and Au/Pt catalysts showing a single alloyed phase were prepared. It was found that using these bimetallic catalysts instead of monometallic ones caused a significant change in activity in the liquid-phase oxidation of alcohols. Au/Pd catalyst showed a positive synergistic effect; Au/Pt, a negative one. By using aqueous solvent instead of organic solvent (toluene), activity was enhanced for both Au/Pd and Au/Pt catalysts, with some changes in selectivity as well. (c) 2006 Elsevier Inc. All rights reserved.

引用

页码：113 / 121

页数：9

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