Characterization and Activity of Mno/γ-Al_2O_3f or Hydrogena- tion of Methyl Benzoate to Benzaldehyde

摘要

The activities of a MnO/γ-Al_2O_3 Catalyst for the selective re- duction of methyl benzoate to benzaldehyde have been studied in a continuous flow reactor. Characterization of the catalyst has been conducted by XRD, XPS, NH_3-TPD andTPD-IR. XRD and XPS resuilts revealed that the steady state catalyst is Mainly MnO_2/γ-Al_2O_3 before reduction and MnO/γ-Al_2O_3 af- Ter reduction. Monolaryer dispersion capacity obtained by XPS Method is about w (Mn) 11.3/100.