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Article Dans Une Revue Topics in Catalysis Année : 2007

Selective catalytic reduction of NO by NH3 on Cu (II) ion- exchanged offretite prepared by different methods

Résumé

The influence of the preparation method on the NO–SCR by NH3 activity of Cu-OFF catalysts has been studied on presence of oxygen. The catalysts structure and the nature of copper species have been investigated by XRD, 27Al MAS NMR, UV-visible spectroscopy and H2-TPR. Among the examined preparation methods, the ionic exchange in aqueous solution gives the highest efficient catalyst in NO-SCR. It is shown that Cu cationic species are formed in large extent with this method despite the presence of minor amounts of small oxide clusters.

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Catalyse

Dates et versions

hal-00155359 , version 1 (18-06-2007)

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Citer

Walid Arous, Hassib Tounsi, Samir Djemel, Abdelhamid Ghorbel, Gerard Delahay. Selective catalytic reduction of NO by NH3 on Cu (II) ion- exchanged offretite prepared by different methods. Topics in Catalysis, 2007, 42-43, pp.51-54. ⟨10.1007/s11244-007-0150-x⟩. ⟨hal-00155359⟩
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