Development of a Rational Way to Prepare a Highly Active Manganese-Containing Catalyst for Environmentally Friendly Fuel Combustion
S. A. YASHNIK1, N. V. SHIKINA1, A. A. GAVRILOVA1, T. A. SUROVTSOVA1, Z. R. ISMAGILOV1,2
1Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
E-mail: yashnik@catalysis.ru
2Institute of Coal Chemistry and Material Science, Federal Research Centre of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences, Kemerovo, Russia
Keywords: manganese-containing catalyst, manganese oxide, TPR-H2, deep oxidation of hydrocarbon, solution combustion synthesis
Pages: 190-196
Abstract
The temperature-programmed reduction with hydrogen was used to identify the phase composition of the active component and to study redox properties of MnOx-containing honeycomb monolithic catalysts prepared by two different methods: 1) “solution combustion synthesis” (SCS) on monolith surface; and 2) Co-extrusion of MnOx powder with oxide components of the monolith. It is assumed that both monolithic catalysts contain predominantly MnO and some amount of MnO2/Mn2O3. Among the studied catalysts, the monolithic catalyst obtained by the SCS method has the maximum activation energy of the second stage of the reduction of MnO2/Mn2O3, which consists in the reduction of Mn3O4 to MnO. This explains its high activity in the oxidation of methane.
DOI: 10.15372/CSD2019127
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