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Selective Catalytic Reduction of NO by NH3 on Sulfated Titanium-Pillared Clay

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Abstract

Structural, textural and surface properties of sulfated and non-sulfated titanium-pillared clay were correlated with catalytic tests in the reduction of NO by NH3 in the presence of oxygen. Lower specific surface areas and basal spacings but stronger acid sites were observed on sulfated Ti-pillared clay than on Ti-pillared clay. Sulfated Ti-pillared clays were more active than Ti-pillared clay. Accordingly, it is suggested that the strong Brønsted acidity generated by sulfate is responsible for the high reactivity of sulfated Ti-pillared clay at high temperature.

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Authors and Affiliations

  1. Laboratoire de Chimie des Matériaux et Catalyse, Département de Chimie, Faculté des Sciences de Tunis, 1060, Tunis, Tunisia

    L. Khalfallah Boudali & A. Ghorbel

  2. Unité de Catalyse et Chimie des Matériaux Divisés, Université Catholique de Louvain, Croix du Sud 2/17, 1348, Louvain-la-Neuve, Belgium

    P. Grange

Authors
  1. L. Khalfallah Boudali
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  2. A. Ghorbel
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  3. P. Grange
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Khalfallah Boudali, L., Ghorbel, A. & Grange, P. Selective Catalytic Reduction of NO by NH3 on Sulfated Titanium-Pillared Clay. Catalysis Letters 86, 251–256 (2003). https://doi.org/10.1023/A:1022676320818

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