Organometallic precursor induced defects-enriched mesoporous CeO2 with high specific surface area: preparation and catalytic performance
High specific surface areas, suitable porous structure and surface enriched defects are favorable to improve the catalytic performance of ceria. However, it remains a challenge to further enhance these characters in one system. Herein, an appealing approach for preparing mesoporous and defects-enriched CeO2 with high specific surface area around 220 m2/g is explored. When evaluated as a catalyst for oxidation coupling of alcohols and amines under mild conditions, a maximum conversion efficiency of 92.9% is achieved for benzyl alcohol at 60 °C under air wihtin 8 h, and the selectivity to imine approached almost 100%, which is ascribed to its superior specific surface areas and surface properties. We anticipate that such a novel approach has a directive function for the development of high performance metal oxide catalysts or catalytic carriers.