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Selective Catalytic Reduction of NO by Ammonia at Low Temperatures on Catalysts Based on Copper Oxide Supported on a Zirconium-Doped Mesoporous Silica

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Abstract

Copper-oxide-containing zirconium-doped mesoporous silica catalysts (1–12 wt% Cu) have been tested in the selective catalytic reduction of NO by ammonia in excess of oxygen. The catalyst with 6 wt% Cu exhibits a maximum NO conversion of 94% at low temperature (250 °C), with a stoichiometric conversion of ammonia and minimal N2O formation. The catalytic behavior can be correlated with the high degree of dispersion and easy reduction of the supported CuO.

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Authors and Affiliations

  1. Departamento de Química Inorgánica, Cristolografía y Mineralogía, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos, 29071, Málaga, Spain

    R. Moreno-Tost, J. Santamaría-González, P. Maireles-Torres, F. Rodríguez-Castellón & A. Jiménez-López

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  1. R. Moreno-Tost
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  2. J. Santamaría-González
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  3. P. Maireles-Torres
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  4. F. Rodríguez-Castellón
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  5. A. Jiménez-López
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Moreno-Tost, R., Santamaría-González, J., Maireles-Torres, P. et al. Selective Catalytic Reduction of NO by Ammonia at Low Temperatures on Catalysts Based on Copper Oxide Supported on a Zirconium-Doped Mesoporous Silica. Catalysis Letters 82, 205–212 (2002). https://doi.org/10.1023/A:1020571029203

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