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Highly efficient cobalt-promoted V2O5/SiO2 catalyst for the oxidation of volatile organic compounds by ozoneстатья
- Авторы: Bokarev D.A., Kanaev S.A., Bragina G.O., Vaulina A.E., Baeva G.N., Stakheev A.Y.
- Журнал: Russian Chemical Bulletin
- Том: 73
- Номер: 5
- Год издания: 2024
- Издательство: Springer Nature
- Местоположение издательства: Switzerland
- Первая страница: 1201
- Последняя страница: 1207
- DOI: 10.1007/s11172-024-4236-4
- Аннотация: The study demonstrates the possibility of promoting the V2O5/SiO2 catalyst with a small amount of Co to increase its activity in the ozone-assisted catalytic oxidation (OZCO) of volatile organic compounds. It was found that the conversion of n-C4H10 over the Co-promoted V2O5/SiO2 catalyst (0.5% of Co w/w) at 50–100 °C significantly increases compared to that found over the reference catalysts Co3O4/SiO2 and V2O5/SiO2. This is achieved by increasing the rate of O3 decomposition at Co sites, which enhances the formation of reactive atomic oxygen species O*, and subsequent acceleration of the OZCO process. High efficiency of ozone consumption in the OZCO of n-C4H10 over the Co-promoted V2O5/SiO2 catalyst is due to the involvement of molecular oxygen in the oxidation reaction and to minimization of undesired recombination of the O* species. © Springer Science+Business Media LLC 2024.
- Добавил в систему: Стахеев Александр Юрьевич