Article ID Journal Published Year Pages File Type
49601 Catalysis Communications 2014 5 Pages PDF
Abstract

•Cu-MCM-41 was firstly applied in the Baeyer–Villiger oxidation of cyclohexanone.•99.0% conversion of cyclohexanone was achieved with 2 molar equiv of benzaldehyde.•Isolated Cu2 + species in Cu-MCM-41 were active sites.•Cu-MCM-41 showed good recyclability.

A series of Cu-MCM-41 with different Cu contents were successfully synthesized by the direct hydrothermal (DHT) method and evaluated in the Baeyer–Villiger oxidation of cyclohexanone, using only 2 molar equiv of benzaldehyde as sacrificial agents. High conversion (99.0%) of cyclohexanone and ε-caprolactone selectivity (100%) were detected over Cu-MCM-41 (23) within 3 h. Various physical–chemical characterizations, including BET, XRD, UV–vis and H2-TPR, revealed that isolated Cu2 + species in the MCM-41 framework were responsible for the catalytic activities. This catalyst could be reused for three times without discernible loss in its activity and selectivity.

Related Topics
Physical Sciences and Engineering Chemical Engineering Catalysis
Authors
, , , , , ,