Sol-gel derived V2O5-TiO2 mesoporous materials as catalysts for the total oxidation of chlorobenzene

被引：43
|
作者：
Gannoun, Chiraz [1 ]
Delaigle, Romain [2 ]
Eloy, Pierre [2 ]
Debecker, Damien P. [2 ]
Ghorbel, Abdelhamid [1 ]
Gaigneaux, Eric M. [2 ]
机构：
[1] Fac Sci Tunis, Dept Chim, Lab Chim Mat & Catalyse, El Manar Tunis 2092, Tunisia
[2] Catholic Univ Louvain, Inst Condensed Matter & Nanosci IMCN, Div Mol Solids & React MOST, B-1348 Louvain, Belgium
来源：
CATALYSIS COMMUNICATIONS | 2011年 / 15卷 / 01期
关键词：
Sol-gel; Aerogel; Sulfate; Vanadia-titania; Oxidation of chlorobenzene; OXIDE-BASED FORMULATIONS; V2O5-WO3/TIO2; CATALYSTS; ZEOLITE CATALYSTS; PART II; NO; REDUCTION; NH3; PHASES; TIO2; V2O5;
D O I：
10.1016/j.catcom.2011.08.001
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：
This paper examines the effect of sulfation of aerogel vanadia-titania catalysts prepared by sal-gel route on its activity in the total oxidation of chlorobenzene. The catalysts have been characterized by means of ICP-AES, N-2 physisorption, XRD. Raman spectroscopy, XPS, H-2-TPR and NH3-TPD. This study demonstrated that the VTiS ternary catalyst exhibits higher activity compared to binary VTi. This result could be explained by the fact that sulfate species improves the acidity of the solid and hence ensures that vanadium species are in a high oxidation state leading to a better activity of sulfated catalyst. (C) 2011 Elsevier B.V. All rights reserved.
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页码：1 / 5
页数：5
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