2014•Vestnik Volgogradskogo gosudarstvennogo universiteta Serija 10 Innovatcionnaia deiatel’nost’Open access
Catalytic Activity of Titania-Supported Manganese Oxide Catalyst in Ozone Decomposition
Todor Batakliev, Slavcho Rakovsky, Г. Е. Заиков, Vladimir Georgiev, M. P. Anachkov
Open full text 0 citations
Abstract
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.
Open-access reader