To develop high-performance catalyst for the selective oxidation of benzyl alcohols to benzyl aldehydes is of great importance. Here we synthesized a novel catalyst of cuprous oxide/basic cuprous carbonate (Cu₂O/Cu₃(OH)₂(CO₃)₂) composite by supercritical CO₂. The two components of Cu₂O and Cu₃(OH)₂(CO₃)₂ have a synergistic catalytic effect to facilitate the oxidation of alcohol. Moreover, the catalyst has a hierarchically macro- and mesoporous structure, which favors the exposure of active sites, adsorption of reactants on the catalyst surface and mass transfer. Owing to these unique features, the as-synthesized Cu₂O/Cu₃(OH)₂(CO₃)₂ shows high performance for the oxidation of benzyl alcohol to benzyl aldehyde at 75 °C under atmospheric O₂.

开发用于将苄醇选择性氧化为苄基醛的高性能催化剂具有重要意义。在这里，我们合成了一种由超临界CO ₂合成的新型氧化亚铜/碱式碳酸亚铜（Cu ₂ O / Cu ₃（OH）₂（CO ₃）₂）催化剂。Cu ₂ O和Cu ₃（OH）₂（CO ₃）₂的两种成分具有协同催化作用以促进醇的氧化。此外，催化剂具有分层的大孔和中孔结构，这有利于活性位点的暴露，反应物在催化剂表面上的吸附和传质。由于这些独特的特性，刚合成的Cu ₂ O / Cu ₃（OH）₂（CO ₃）₂在大气O ₂下于75°C时具有将苄醇氧化为苄基醛的高性能。