Effect of the cobalt addition on benzene oxidation of supported MnOx nanocluster catalysts

Abstract By varying the precursor ratios, cobalt doped manganese oxide nanocluster catalysts with different cobalt contents were prepared using the colloidal method. Catalysts were applied to a gas phase benzene oxidation reaction. Among them, the catalyst with a Mn:Co ratio of 90:10 showed the highest conversion. The addition of cobalt changing the valence of manganese was observed by XANES analysis, and that is thought to be the reason for the high activity.