Journal of Nanoscience and Nanotechnology 2013-11-01

Catalytic oxidation of benzene using mesoporous alpha-Mn2O3.

Hyung Bum An, Ji Man Kim, Jongsoo Jurng, Gwi-Nam Bae, Jong-Ki Jeon, Sung Hoon Park, Young-Kwon Park

Index: J. Nanosci. Nanotechnol. 13(11) , 7472-6, (2013)

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Abstract

The catalytic oxidation of benzene was carried out over mesoporous alpha-Mn2O3, MnOx/KIT-6, and bulk commercial Mn oxides (Mn2O3, MnO2, and MnO). The catalysts were characterized using X-ray diffraction, X-ray photoelectron spectroscopy, Brunauer-Emmett-Teller analysis, and temperature-programmed reduction analysis. MnOx/KIT-6, prepared by impregnating MnOx on KIT-6, exhibited a low activity for the oxidation of benzene, whereas mesoporous alpha-Mn2O3, manufactured using KIT-6 as the template, showed a high activity. The order of the activities of bulk Mn oxides for benzene decomposition was shown to be Mn2O3 > MnO2 > MnO. Therefore, the high activity of mesoporous alpha-Mn2O3 is attributed to the uniform distribution of highly active Mn2O3 in the mesoporous structure.