Abstract
AbstractThe mesoporous silica SAB‐15 material and a series of nano‐composite bimetal oxides‐SBA‐15 materials are synthesized. The oxidation of various benzyl alcohols to aromatic aldehydes has been studied using nano‐composite bimetal oxides‐SBA‐15 materials as catalysts in air. The results indicate that the CrMnOx‐SBA‐15 material can promote the oxidation of benzyl alcohols to aromatic aldehydes with excellent yields smoothly. The microstructure and morphology of SBA‐15 and CrMnOx‐SBA‐15 materials are characterized by SEM, TEM, XRD and nitrogen adsorption/desorption isotherms, respectively. In addition, the UHRTEM images, EDS image mapping, and the X‐ray photoelectron spectroscopy (XPS) of CrMnOx‐SBA‐15 material also are characterized, which indicate the structure of the catalyst is advantageous to improve its catalytic activity.
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