Abstract: A series of MnOx/Al0.82Ti0.18Ox (Mn/Al-Ti), Cu/Al-Ti, CuMn2/Al-Ti, and CuMn2Zr1.25/Al-Ti monolithic catalysts were prepared by the wet impregnation method. X-ray diffraction, X-ray photoelectron spectroscopy, H2 temperature-programmed reduction, and N2 adsorption were used to characterize the catalysts. The results showed that the addition of ZrO2 in the catalysts increases the specific surface area, component dispersion, oxygen species concentration on the surface, and the redox ability of the catalysts. The monolithic catalysts have high catalytic activity, and the benzene conversion of 91% was obtained at temperature as low as 281 oC.

Key words: copper oxide, manganese oxide, zirconia, monolithic catalyst, catalytic combustion, benzene