Catalytic oxidation of benzene using mesoporous alpha-Mn2O3.
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.
Graduate School of Energy and Environmental System Engineering, University of Seoul, Seoul 130-743, Korea.
Hyung Bum
HB
An
Ji Man
JM
Kim
Jongsoo
J
Jurng
Gwi-Nam
GN
Bae
Jong-Ki
JK
Jeon
Sung Hoon
SH
Park
Young-Kwon
YK
Park
D001554:Benzene / Q000737:chemistry*; D002384:Catalysis; D017895:Manganese Compounds / Q000737:chemistry*; D008422:Materials Testing; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010084:Oxidation-Reduction; D010087:Oxides / Q000737:chemistry*; D010316:Particle Size; D016062:Porosity
D017895:Manganese Compounds; D010087:Oxides; C027424:manganese oxide; D001554:Benzene