Cobalt catalysts in selective catalytic reduction of NO by methane |
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| Authors: | I. I. Novochinsky P. A. Chernavsky P. V. Ryabchenko V. V. Lunin |
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| Affiliation: | (1) CGE Laboratory, Chemistry Department, M.V, Lomonosov Moscow State University, Vorob’evy Gory, Moscow, 119899, Russia |
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| Abstract: | Impregnated cobalt-containing catalysts are studied in the selective catalytic reduction of NO by methane. The active component of all the impregnated cobalt-containing catalysts is Co3O4. The role of O2 seems to maintain the surface stoichiometry of Co3O4. The main reason of decrease of catalytic activity of samples based on MgO, SiO2, Al2O3 in selective catalytic reduction of NO is due to oxide-oxide interaction promoted by water. Catalysts based on montmorillonite (HMM) are stable in the presence of water. All the carriers can be placed by the capability for oxide–oxide interaction in the following order: SiO2 ≫ MgO > Al2O3 ≫ HMM. This revised version was published online in August 2006 with corrections to the Cover Date. |
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| Keywords: | montmorillonite selective catalytic reduction of NO methane water role of O2 oxide-oxide interaction |
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