Selective Oxidation of Benzyl Alcohol with Oxygen Catalyzed by Vanadia Supported on Nitrogen-Containing Ordered Mesoporous Carbon Materials

Liquid-phase selective oxidation of alcohols to aldehydes using molecular oxygen as an oxidant is one of the most important transformations in organic synthesis and green chemistry. In this work, nitrogen-containing ordered mesoporous materials (NOMCs) were prepared and utilized as supports to load vanadia. The physical and chemical properties of the synthesized VxOy/NOMC materials were characterized by N-2 adsorption-desorption, XRD, TEM, Raman, and XPS. The characterization results exhibited that NOMC could well disperse vanadia species and there was a steady interaction between V and N of NOMC. In selective oxidation of benzyl alcohol using oxygen as an oxidant, the synthesized VxOy/NOMC materials showed good and stable catalytic performance, affording a maximum yield of benzaldehyde up to 80% at 95 degrees C. [GRAPHICS] .

Automated summary

In this study, nitrogen-containing ordered mesoporous materials (NOMCs) were prepared and utilized as supports to load vanadia for liquid-phase selective oxidation of benzyl alcohol to benzaldehyde using oxygen as an oxidant. The VxOy/NOMC materials exhibited good dispersion of vanadia species and steady interaction between V and N, showing good and stable catalytic performance with a maximum yield of 80% benzaldehyde at 95 degrees C.