Jin, Mingshi Kim, Jung Hwan Kim, Ji Man Jeon, Jong-Ki Jurng, Jongsoo Bae, Gwi-Nam Park, Young-Kwon 2024-01-20T12:32:40Z 2024-01-20T12:32:40Z 2021-09-05 2013-04-15 0920-5861 https://pubs.kist.re.kr/handle/201004/128159 Catalytic oxidation of benzene with ozone has been studied using manganese oxides with two different manganese precursors, Mn(NO3)(2) and Mn(CH3COO)(2), supported on SBA-15 (MnOx/SBA-15). The catalysts were characterized by X-ray diffraction, N-2 adsorption-desorption, Raman spectroscopy, and H-2-temperature programmed reduction. The manganese nitrate (MN) precursor primarily resulted in large particles on the silica support, while the manganese acetate (MA) precursor mainly resulted in a highly dispersed manganese oxide on the silica support. The catalytic activity was dependent upon ozone concentration, reaction times, and the amount of Mn loading. Higher benzene conversion, O-3 conversion, and COx yield were observed for MnOx-MA/SBA-15 catalyst over MnOx-MN/SBA-15, due to the highly dispersed manganese oxides on the supports, and the higher oxygen mobility. The 15 wt% MnOx-MA/SBA-15 catalyst shows the highest catalytic activity of all the catalysts considered in this study. (c) 2012 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV SUPPORTED MANGANESE OXIDES ALUMINA DECOMPOSITION REMOVAL Benzene oxidation with ozone over MnOx/SBA-15 catalysts Article 10.1016/j.cattod.2012.09.026 1 CATALYSIS TODAY, v.204, pp.108 - 113 CATALYSIS TODAY 204 108 113 scie scopus 000314825900016 2-s2.0-84873720455 Chemistry, Applied Chemistry, Physical Engineering, Chemical Chemistry Engineering Article SUPPORTED MANGANESE OXIDES ALUMINA DECOMPOSITION REMOVAL MnOx/SBA-15 Catalytic oxidation Benzene Ozone Mn acetate Mn nitrate