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

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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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Authors and Affiliations

  1. Département de chimie, FST, Laboratoire de Chimie des Matériaux et Catalyse, Campus Universitaires, 1060, Tunis, Tunisia

    W. Arous, H. Tounsi, S. Djemel & A. Ghorbel

  2. Laboratoire de Matériaux Catalytiques et Catalyse en Chimie Organique, UMR 5618 du CNRS, ENSCM, 8 rue de l’École Normale, 34296, Montpellier cedex, France

    G. Delahay

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  1. W. Arous
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  2. H. Tounsi
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  3. S. Djemel
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  4. A. Ghorbel
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  5. G. Delahay
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Correspondence to W. Arous.

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Arous, W., Tounsi, H., Djemel, S. et al. Selective catalytic reduction of NO by NH3 on Cu (II) ion-exchanged offretite prepared by different methods. Top Catal 42, 51–54 (2007). https://doi.org/10.1007/s11244-007-0150-x

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  • DOI: https://doi.org/10.1007/s11244-007-0150-x

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