Synthesis of Vanadium-Containing Catalytically Active Phases for Exhaust Gas Neutralizers of Motor Vehicles and Industrial Enterprises
Khussain B. Brodskiy A. Sass A. Rakhmetova K. Yaskevich V. Grigor’eva V. Ishmukhamedov A. Shapovalov A. Shlygina I. Tungatarova S. Khussain A.
August 2022MDPI
Catalysts
2022#12Issue 8
The catalytically active vanadium-containing system of γ-Al2O3 was studied using a wide range of physical and chemical methods, depending on the synthesis conditions. It is shown that the vanadium-containing system includes several complexes with different thermal stabilities and catalytic activities. Low-active complexes are destroyed with the formation of more active ones based on V2O5 oxide, as the temperature of heat treatment increases. It can be assumed that V2O5 oxide has the decisive role in its catalytic activity. It was concluded that the vanadium-containing catalytic system on aluminium oxide, in the studied temperature range, is thermally stable and shows high activity not only in the reduction of nitrogen oxides but also in the oxidation of hydrocarbons (even of the most difficult ones, such as oxidizable methane). These properties of the system make it quite promising in the field of application for the purification of the exhaust gases of motor transport and industrial enterprises with environmentally harmful components, as well as for understanding the mechanism of the action of the catalysts in these processes, which is very important for solving the problems of decarbonization and achieving carbon neutrality.
aluminium oxide , catalysts , neutralizers , oxidation of saturated hydrocarbons , vanadyl sulfate
Text of the article Перейти на текст статьи
D.V. Sokolsky Institute of Fuel, Catalysis and Electrochemistry, 142, Kunaev str., Almaty, 050010, Kazakhstan
Department of Chemistry and Chemical Technology, al-Farabi, Kazakh National University, 71, al-Farabi str, Almaty, 050040, Kazakhstan
D.V. Sokolsky Institute of Fuel
Department of Chemistry and Chemical Technology
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026