Abstract
Relationship between the amount of acidic and basic sites of cobalt ferrite and its catalytic properties in the decomposition of nitrogen(I) oxide has been established. The Hammett’s indicators method and thermal desorption of ammonia have revealed the distribution of acid-base sites depending on the ratio of the Fe2O3–Co3O4 components. It has been shown that the increase in the amount of the basic sites reduces the temperature of N2O decomposition by 122°С. The nature of the acidic and basic sites at the CoFe2O4 surface has been identified using IR spectroscopy.
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REFERENCES
Zakharova, N.V. and Sychev, M.M., Kondens. Mezhfaz. Granitsy, 2010, vol. 13, no. 1, p. 56.
Yuan, M., Su, Y., Deng, W., and Zhou, H., Chem. Eng. J., 2019, no. 375, p. 13035. https://doi.org/10.1016/j.cej.2019.122091
Antoshkina, E.G., Smolko, V.A., Vestn. Yuzh-Ural. Gos. Univ., Ser. Matem., Fiz., Khim., 2008, vol. 10, no. 7, p. 65.
Ryazanov, M.A., Izv. Komi Nauch. Tsentra Ural. Otd. Ross. Akad. Nauk, 2011, vol. 6, no. 2, p. 25.
Kuznetsov, M.V., Sovremennye metody issledovaniya poverkhnosti tverdykh tel (Modern Methods for Studying the Surface of Solids), Yekaterinburg: IKhTT Ural. Otd. Ross. Akad. Nauk, 2010, p. 43.
Ekimova, I.A., Polzunovskii Vestn., 2013, no. 1, p. 67.
Pakhnutova, E.A. and Slizhov, Y.G., Inorg. Mater., 2015, vol. 51, no. 6, p. 572. https://doi.org/10.1134/S002016851505012X
Minakova, T.S., Adsorbtsionnye protsessy na poverkhnosti tverdykh tel (Adsorption Processes on the Surface of Solids), Tomsk: Tomsk. Gos. Univ., 2007.
Sychev, M.M., Minakova, T.S., Slizhov, Yu.G., and Shilova, O.A., Kislotno-osnovnye kharakteristiki poverkhnosti tverdykh tel i upravlenie svoistvami materialov i kompozitov (Acid-Base Characteristics of the Surface of Solids and Control of the Properties of Materials and Composites), St. Petersburgb: Khimizdat, 2016.
Kustov, L.M., Ross. Khim. Zh., 1998, nos. 1–2, p. 163.
Ushakov, A.V., Karpov, I.V., Lepeshev, A.A., and Fedorov, L.Yu., Shaikhadinov, A.A., J. Tech. Phys., 2016, vol. 86, no. 1, p. 103. https://doi.org/10.1134/S1063784216010230
Karpova, C.C., Moshnikov, V.A., Maksimov, A.I., Myakin, S.V., and Kazantseva, N.E., Semiconductors, 2013, vol. 47, no. 8, p. 1026. https://doi.org/10.1134/S1063782613080095
Paukshtis, E.A., IK spektroskopiya v geterogennom kislotno-osnovnom katalize (IR Spectroscopy in Heterogeneous Acid-Base Catalysis), Novosibirsk: Nauka, 1992, p. 256.
Davydov A.A., Molecular Spectroscopy of Oxide Catalyst Surfaces, Chichester: Wiley, 2003.
Funding
This study was performed in the scope of the governmental task (no. FZZW-2020-0010). The experiment was carried out in the scope of the operative plan of Laboratory of Synthesis, Research and Testing of Catalytic and Adsorption System for Hydrocarbon Raw Materials Conversion (created with support from the Ministry of Education and Science of Russian Federation for 2012–2022). Theoretical part of the study was financially supported by the President Scholarship (SP-3800.2019.1).
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Denisova, K.O., Ilyin, A.A., Rumyantsev, R.N. et al. Relationship of Acid-Base Properties of Cobalt Ferrite with Its Catalytic Activity Towards Nitrogen(I) Oxide Decomposition. Russ J Gen Chem 90, 1036–1039 (2020). https://doi.org/10.1134/S107036322006016X
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DOI: https://doi.org/10.1134/S107036322006016X