Performance of V2O5/NPTiO2–Al2O3-nanoparticle- and V2O5/NTiO2–Al2O3-nanotube model catalysts in the SCR–NO with NH3 |
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| Affiliation: | 1. Molecular Engineering Program, Mexican Institute of Petroleum, 07730 México, D.F., Mexico;2. Department of Chemical Engineering, ESIQIE-IPN, 75876 México, D.F., Mexico;3. Department of Chemistry, UAM-A, 55534 México, D.F., Mexico;1. Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10 Pardubice, Czech Republic;2. Institute of Chemical Technology, Faculty of Chemical Technology, Department of Polymers, Technická 5, CZ-166 28 Prague 6, Czech Republic;1. Faculty of Chemistry, University of Kashan, Kashan, Iran;2. Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran |
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| Abstract: | In this study, the NO reduction by NH3 over V2O5/NPTiO2–Al2O3 (nanoparticles) and V2O5/NTiO2–Al2O3 (nanotubes) catalysts synthesized by the sol–gel method with 10 and 5 wt.% of Al2O3 and V2O5, respectively, is reported. The V2O5/NPTiO2–Al2O3 and V2O5/NTiO2–Al2O3 catalysts showed remarkable conversion, high acidity, structure stability, N2 selectivity and a high resistance to deactivation in the presence of 10 vol.% of H2O within the 200 to 500 °C temperature interval. The nanostructured catalysts developed in this work are an excellent alternative to improve the SCR–NH3 process, both expanding its operation window and preventing deactivation by H2O at high temperatures. |
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