Batakliev T. T., Rakovsky S. K., Zaikov G. E., Georgiev V. F., Anachkov M. P. CATALYTIC ACTIVITY OF TITANIA-SUPPORTED MANGANESE OXIDE CATALYST IN OZONE DECOMPOSITION

DOI: http://dx.doi.org/10.15688/jvolsu10.2014.5.3 

Batakliev Todor Todorov

Associate Professor, PhD, Institute of Catalysis of Bulgarian Academy of Sciences

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G. Boncheva St., 11, 1113 Sofia, Bulgaria

Rakovsky Slavcho Kirilov

Professor, D.Sc., Institute of Catalysis of Bulgarian Academy of Sciences

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G. Boncheva St., 11, 1113 Sofia, Bulgaria

Zaikov Gennady 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

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Kosygina St., 4,119334 Moscow, Russian Federation

Georgiev Vladimir Ferdinandov

Associate Professor, PhD, Institute of Catalysis of Bulgarian Academy of Sciences,

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G. Boncheva St., 11, 1113 Sofia, Bulgaria

Anachkov Metodi Parvanov

Associate Professor, PhD in Law, Institute of Catalysis of Bulgarian Academy of Sciences

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G. Boncheva St., 11, 1113 Sofia, Bulgaria

Abstract. The titania-supported Mn oxide system made by incipient wetness impregnation method was investigated in the reaction of heterogeneous catalytic decomposition of ozone. The catalytic activity of the catalysts containing 6, 8 and 10 wt % manganese oxide was found using the decomposition coefficient g which is proportional to ozone decomposition rate. It was established that all catalytic samples are active towards ozone decomposition but the catalyst possessing 10 t % MnOx/TiO2 was the most active. The calculated values of g were in the range of 0.05´10-4–0.4´10-4. The experiments were performed at the temperature range of 258 K to 313 K in a tube glass reactor. It was determined that the activation energy of the process is 11 kJ/mol. The catalyst was characterized by TPR, XRD, AFM, FT-IR spectroscopy and surface measurements. A catalytic cycle of ozone decomposition on MnOx/TiO2 catalyst was proposed.

Key words: ozone, titania, manganese oxide, decomposition, activation energy.

 

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CATALYTIC ACTIVITY OF TITANIA-SUPPORTED MANGANESE OXIDE CATALYST IN OZONE DECOMPOSITION by Batakliev T. T., Rakovsky S. K., Zaikov G. E., Georgiev V. F., Anachkov M. P. is licensed under a Creative Commons Attribution 4.0 International License.

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