Catalytic activity of titania-supported manganese oxide catalyst in ozone decomposition
Автор: Batakliev Todor Todorov, Rakovsky Slavcho Kirilov, Zaikov Gennady Efremovich, Georgiev Vladimir Ferdinandov, Anachkov Metodi Parvanov
Журнал: НБИ технологии @nbi-technologies
Рубрика: Технико-технологические инновации
Статья в выпуске: 5 (14), 2014 года.
Бесплатный доступ
The titania-supported Mn oxide system made by incipient wetness impregnation method was investigated in the reaction of heterogeneous catalytic decomposition of ozone. The catalytic activity of the catalysts containing 6, 8 and 10 wt % manganese oxide was found using the decomposition coefficient g which is proportional to ozone decomposition rate. It was established that all catalytic samples are active towards ozone decomposition but the catalyst possessing 10 t % MnOx/TiO2 was the most active. The calculated values of g were in the range of 0.05´10-4-0.4´10-4. The experiments were performed at the temperature range of 258 K to 313 K in a tube glass reactor. It was determined that the activation energy of the process is 11 kJ/mol. The catalyst was characterized by TPR, XRD, AFM, FT-IR spectroscopy and surface measurements. A catalytic cycle of ozone decomposition on MnOx/TiO2 catalyst was proposed.
Ozone, titania, manganese oxide, decomposition, activation energy
Короткий адрес: https://sciup.org/14968355
IDR: 14968355 | DOI: 10.15688/jvolsu10.2014.5.3
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