Batakliev T.T., Georgiev V.F., Anachkov M.P., Rakovsky S.K., Zaikov G.E. Ozone Decomposition on the Surface of Metal Oxide Catalyst
Batakliev Todor Todorov
PhD in Chemistry, Assistant Professor,
Institute of Catalysis,
Bulgarian Academy of Sciences
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Akademika Boncheva St., 11, 1113 Sofia, Bulgaria
Georgiev Vladimir Ferdinandov
PhD in Chemistry, Assistant Professor,
Institute of Catalysis, Bulgarian Academy of Sciences
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Akademika Boncheva St., 11, 1113 Sofia, Bulgaria
Anachkov Metodi Parvanov
PhD in Chemistry, Associate Professor,
Institute of Catalysis, Bulgarian Academy of Sciences
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Akademika Boncheva St., 11, 1113 Sofia, Bulgaria
Rakovsky Slavcho Kirilov
Doctor of Chemical Sciences, Professor,
Institute of Catalysis, Bulgarian Academy of Sciences
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Akademika Boncheva St., 11, 1113 Sofia, Bulgaria
Zaikov Gennadiy Efremovich
Doctor of Chemical Sciences, Professor,
Head of Department of Biological and Chemical Physics of Polymers,
Institute of Biochemical Physics named after N.M. Emanuel, RAS
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Kosygina St., 4, 119334 Moscow, Russian Federation
Abstract. The catalytic decomposition of ozone to molecular oxygen over catalytic
mixture containing manganese, copper and nickel oxides was investigated in the present work. The catalytic activity was evaluated on the basis of the decomposition coefficient which is proportional to ozone decomposition rate, and it has been already used in other studies for catalytic activity estimation. The reaction was studied in the presence of thermally modified catalytic samples operating at different temperatures and ozone flow rates. The catalyst changes were followed by kinetic methods, surface measurements, temperature programmed reduction and IR-spectroscopy. The phase composition of the metal oxide catalyst was determined by X-ray diffraction. The catalyst mixture has shown high activity in ozone decomposition at wet and dry O3/O2 gas mixtures. The mechanism of catalytic ozone degradation was suggested.
Key words: ozone, catalyst, decomposition, synthesis, kinetics, mechanism.
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