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Relationship between the Activity of Oxide Catalysts in the Reaction of Ozone Decomposition and O3-Catalytic Oxidation of n-С4H10

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Abstract

The activity of transition metal (V, Cr, Mn, Fe, Co, Ni, Cu, and Zn) oxides supported on γ-Al2O3 in the reaction of ozone decomposition was studied. The catalytic characteristics of the samples with high (NiO/Al2O3), low (Cr2O3/Al2O3), and intermediate (MnOx/Al2O3) activity in ozone decomposition were studied in the process of ozone catalytic oxidation (OZCO) of n-butane. The results obtained allowed us to conclude that the optimal activity of a transition metal oxide in the decomposition of O3 is of key importance in the OZCO process. At a low rate of ozone decomposition, hydrocarbon oxidation is limited by the rate of formation of atomic oxygen species; at an excessively high rate of decomposition, hydrocarbon conversion decreases due to an competitive process of atomic oxygen recombination. The best catalytic performance in the oxidation of n-C4H10 was observed for a catalyst based on Mn oxide, which has an optimal activity in the decomposition of O3.

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Funding

This study was supported by the Russian Science Foundation (grant no. 23-13-00214, https://rscf.ru/project/23-13-00214/).

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Authors and Affiliations

  1. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991, Moscow, Russia

    D. A. Bokarev, I. V. Paramoshin, S. A. Kanaev & A. Yu. Stakheev

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  1. D. A. Bokarev
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  2. I. V. Paramoshin
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  3. S. A. Kanaev
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  4. A. Yu. Stakheev
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Corresponding author

Correspondence to A. Yu. Stakheev.

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The authors of this work declare that they have no conflicts of interest.

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Translated by V. Makhlyarchuk

Abbreviations and notation: OZCO, ozone catalytic oxidation; VOC, volatile organic compound.

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Bokarev, D.A., Paramoshin, I.V., Kanaev, S.A. et al. Relationship between the Activity of Oxide Catalysts in the Reaction of Ozone Decomposition and O3-Catalytic Oxidation of n-С4H10. Kinet Catal 64, 683–685 (2023). https://doi.org/10.1134/S0023158423050026

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  • DOI: https://doi.org/10.1134/S0023158423050026

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