Catalytic Activity of Co3O4 Supported on Activated Carbon for Alcohols Oxidation

Abstract

Oxidation of different types of alcohol was carried out using molecular oxygen (O2) in presence of heterogeneous cobalt oxide supported on activated carbon catalysts (Co3O4/AC). Good results for benzyl alcohol and benzyl alcohol derivatives conversion and selectivity were obtained, while aliphatic, primary, and secondary alcohols in the study exhibited low conversions. The catalysts were prepared by the incipient wetness technique with the variation of use or not of sonication during the preparation. The performance and characterization of synthetized catalysts was studied with N2 physisorption, AA (Atomic Absorption), SEM (Scanning Electron Microscopy) and H2-TPR (Temperature Programmed Reduction). These results are essential for understanding more about the activity of this type of catalysts in the synthesis of aldehydes and ketones.