Influence of the pretreatment conditions on the performances of CeO2-supported gold catalysts in the catalytic wet air oxidation of carboxylic acids

被引：22

作者：

Ngoc Dung Tran ^{[1
]}

Besson, Michele ^{[1
]}

Descorme, Claude ^{[1
]}

Fajerwerg, Katia ^{[2
]}

Louis, Catherine ^{[2
]}

机构：

[1] Univ Lyon, Inst Rech Catalyse & Environm Lyon IRCELYON, UMR CNRS 5256, F-69626 Villeurbanne, France

[2] Univ Paris 06, Lab Reactivite Surface, UMR CNRS 7197, F-75252 Paris 05, France

来源：

CATALYSIS COMMUNICATIONS | 2011年 / 16卷 / 01期

关键词：

Gold; Ceria; Pretreatment; Catalytic wet air oxidation (CWAO); Succinic acid; Acetic acid; PLANT EFFLUENTS; OXIDE; PRECURSORS; TITANIUM; FUTURE; PHENOL; SIZE;

D O I：

10.1016/j.catcom.2011.09.014

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：

Two series of ceria-supported gold catalysts (1 and 4 wt.% Au) were prepared by deposition-precipitation with urea. Depending on the gold loading, the pretreatment of the Au/CeO2 catalysts (calcination in air vs. reduction in hydrogen) had a great influence on the oxidation state of gold, and in turn, on the activity of the Au/CeO2 catalysts in the catalytic wet air oxidation (CWAO) of model carboxylic acids. The higher the fraction in metallic gold is, the better the catalytic performances are. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：98 / 102

页数：5

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