Yuldashev, Kh. Kh., Mansurov, Y. N., Jurayev, A. I., & Mirzayev, N. A.
Modern catalyst based on cerium oxide. |
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Full Article: PDF
Scientific Object Identifier: http://s-o-i.org/1.1/TAS-11-103-112
DOI: https://dx.doi.org/10.15863/TAS.2021.11.103.112
Language: Russian
Citation: Yuldashev, Kh. Kh., Mansurov, Y. N., Jurayev, A. I., & Mirzayev, N. A. (2021). Modern catalyst based on cerium oxide. ISJ Theoretical & Applied Science, 11 (103), 940-947. Soi: http://s-o-i.org/1.1/TAS-11-103-112 Doi: https://dx.doi.org/10.15863/TAS.2021.11.103.112 |
Pages: 940-947
Published: 30.11.2021
Abstract: Air pollution with harmful gases such as carbon monoxide, nitrogen oxides, and hydrocarbons leads to a serious deterioration in human health, while atmospheric pollution with hydrocarbons can lead to a significant increase in global warming processes, since hydrocarbons, and primarily methane, are effective greenhouse gases. By virtue of these circumstances, the problem of creating effective catalysts for the purification of fuel combustion products not only does not lose its relevance but also becomes increasingly acute. Cerium dioxide is now widely used on modern three-function catalytic systems (TWC). The article provides a literature review of the physicochemical properties of cerium dioxide, the mechanism of oxidation of carbon monoxide in cerium oxide, as well as the catalytic properties of cerium dioxide.
Key words: catalysis, carbon monoxide, cerium dioxide, Mars - Van Krevelen mechanism, TWC, OSC, rare earth elements.
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