Investigation of Au/hydrotalcite catalysts for toluene total oxidation

被引:14
作者
Genty, Eric [1 ,2 ]
Cousin, Renaud [1 ,2 ]
Gennequin, Cedric [1 ,2 ]
Capelle, Sylvie [1 ,2 ]
Aboukais, Antoine [1 ,2 ]
Siffert, Stephane [1 ,2 ]
机构
[1] Univ Littoral Cote dOpale, UCEIV, F-59140 Dunkerque, France
[2] Univ Lille Nord France, F-59000 Lille, France
关键词
Hydrotalcite; Gold based catalyst; Toluene oxidation; CO oxidation; OZONE CREATION POTENTIALS; CO OXIDATION; ORGANIC-COMPOUNDS; GOLD; OXIDES; VOCS;
D O I
10.1016/j.cattod.2011.01.034
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
X6Al2HT hydrotalcites, where X represents Ni, Co, Mn or Mg, have been investigated before and after gold deposition for toluene and CO total oxidation reactions. Specific area and XRD measurements of these solids have been done. No change in the structure of the hydrotalcite support due to the introduction of gold is detected for the Co6Al2HT and Mn6Al2HT support. However the deposition of gold on these oxides has a beneficial effect on the activity. Concerning the total oxidation of toluene, the best activity is obtained with Au/Mn6Al2HT catalysts with a T-50 at 240 degrees C. However catalytic behaviour of Au/X6Al2HT catalysts in oxidation of toluene depends mainly on the nature of the support: no clear correlations have been observed between catalytic properties and the average size of the Au particles. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:116 / 119
页数:4
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