Selective catalytic reduction of NO by ammonia on V 2O 5–SO 4 2−/TiO 2 catalysts prepared by the sol–gel method

L. Baraket; A. Ghorbel; P. Grange

doi:10.1016/j.apcatb.2006.10.001

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Selective catalytic reduction of NO by ammonia on V 2O 5–SO 4 2−/TiO 2 catalysts prepared by the sol–gel method

Journal article

Peer reviewed

Selective catalytic reduction of NO by ammonia on V 2O 5–SO 4 2−/TiO 2 catalysts prepared by the sol–gel method

L. Baraket, A. Ghorbel and P. Grange

Applied catalysis. B, Environmental, Vol.72(1), pp.37-43

2007

DOI: https://doi.org/10.1016/j.apcatb.2006.10.001

Abstract

SCR

Sol–gel

Sulfate

Titania

Vanadia

This paper examines the effect of sulfation of vanadia–titania binary solid prepared by sol–gel process on its activity for the selective catalytic reduction (SCR) of NO with NH 3. Sulfated and unsulfated vanadia titania have been characterized by means of N 2 adsorption–desorption at 77 K, XRD, TGA, propan-2-ol conversion as acid test, H 2-TPR measurements, EPR, XPS and Raman spectroscopies. The main results of this study highlight the interaction of sulfate ions with vanadia species. The ternary catalyst VTiS exhibits a high activity compared to binary TiS or VTi samples. It is concluded that sulfate species improve the superficial acidity of solid and interact with vanadia leading to a better reducibility of VTiS oxide.

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Title: Selective catalytic reduction of NO by ammonia on V 2O 5–SO 4 2−/TiO 2 catalysts prepared by the sol–gel method
Creators - without role: L. Baraket - Tunis University
A. Ghorbel - Tunis University
P. Grange - UCLouvain
Publication Details: Applied catalysis. B, Environmental, Vol.72(1), pp.37-43
Publisher: Elsevier B.V
Identifiers: 9912308808331
Academic Unit: Al Baha University
Language: English
Resource Type: Journal article