The development of noble-metal-free heterogeneous catalysts is promising for selective oxidation of aromatic alcohols;h owever,t he relatively lowc onversion of non-noble metal catalysts under solvent-free atmospheric conditions hinders their industrial application. Now,aholey lamellar high entropyoxide (HEO) Co 0.2 Ni 0.2 Cu 0.2 Mg 0.2 Zn 0.2 Omaterial with mesoporous structure is prepared by an anchoring and merging process.The HEO has ultra-high catalytic activity for the solvent-free aerobic oxidation of benzyl alcohol. Up to 98 %conversion can be achieved in only 2h,toour knowledge, the highest conversion of benzyl alcohol by oxidation to date. By regulating the catalytic reaction parameters,benzoicacid or benzaldehyde can be selectively optimizedasthe main product. Analytical characterizations and calculations provide adeeper insight into the catalysis mechanism, revealing abundant oxygen vacancies and holey lamellar framework contribute to the ultra-high catalytic activity.

No abstract

The development of noble-metal-free heterogeneous catalysts is promising for selective oxidation of aromatic alcohols;h owever,t he relatively lowc onversion of non-noble metal catalysts under solvent-free atmospheric conditions hinders their industrial application. Now,aholey lamellar high entropyoxide (HEO) Co 0.2 Ni 0.2 Cu 0.2 Mg 0.2 Zn 0.2 Omaterial with mesoporous structure is prepared by an anchoring and merging process.The HEO has ultra-high catalytic activity for the solvent-free aerobic oxidation of benzyl alcohol. Up to 98 %conversion can be achieved in only 2h,toour knowledge, the highest conversion of benzyl alcohol by oxidation to date. By regulating the catalytic reaction parameters,benzoicacid or benzaldehyde can be selectively optimizedasthe main product. Analytical characterizations and calculations provide adeeper insight into the catalysis mechanism, revealing abundant oxygen vacancies and holey lamellar framework contribute to the ultra-high catalytic activity.

No abstract