The present paper continues the exploration of physicochemical and catalytic properties vanadia-mayenite composites. samples were prepared by an impregnation calcium aluminate Ca12Al14O33 (mayenite, C12A7) with a solution vanadium precursor. Pure mayenite V/C12A7 nanocomposites characterized Raman diffuse reflectance UV–Vis spectroscopies. reducibility was examined in temperature-programmed red...

a green, efficient and selective approach for the oxidation of sulfides to sulfoxides and sulfones with uhp at room temperature is reported. the reaction is performed in the presence of vanadia catalyst supported on mesocellular silica foam (mcf) with a v content ranging from 2% to 10% as heterogeneous and reusable catalyst. the structural and textural characterization of this catalyst were don...