Characterization and reactivity of γ-Al2O3 supported Pd–Cu bimetallic nanocatalysts for the selective oxygenization of cyclopentene

In this work, Pd–Cu/γ-Al2O3 is prepared by the impregnation method and investigated for selective oxygenization of cyclopentene to cyclopentanone. A series of bimetallic Pd–Cu/γ-Al2O3 nanocatalysts were prepared and the structures characterized by XRD, XPS and TEM. We determined that the obtained Pd–Cu/γ-Al2O3 (molar ratio Pd:Cu = 5:1) was an efficient catalyst for the oxygenization of cyclopentene to cyclopentanone with >95% selectivity and >85% conversion (100 °C, 1 MPa initial O2 pressure, 7 h).

Graphical abstractA series of γ-Al2O3 supported Pd–Cu bimetallic nanocatalysts are investigated for the selective oxygenization of cyclopentene to cyclopentanone.Figure optionsDownload full-size imageDownload as PowerPoint slide