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Updated: Sep 23, 2025

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Published on: December 6, 2021
Cobalt immobilized on hydroxyapatite as a low-cost and highly effective heterogeneous catalyst for alkenes
Pagasukon Mekrattanachai1,2, Changyan Cao1,2, Zhaohua Li1,2
1Beijing National Laboratory for Molecular Sciences, Laboratory of Molecular Nanostructures and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China cycao@iccas.ac.cn wsong@iccas.ac.cn.
Abstract:
Transition metal Co immobilized on hydroxyapatite with a loading of 0.05 wt% (denoted 0.05 wt% Co/HAP) could catalyze partial oxidation of cyclic alkenes, aromatic alkenes and aliphatic alkenes to yield epoxide products with excellent selectivity at 30 °C with O2 and iso-butyraldehyde as co-oxidant. The TOF value was as high as 6261 h-1 for epoxidation of cyclohexene. In addition, the prepared 0.05 wt% Co/HAP catalyst can be re-used at least 6 times without significant loss of catalytic activity and selectivity.
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