Abstract
We report the synthesis of alumina-supported manganese catalysts by a homogeneous deposition-precipitation method and their catalytic application in the aerobic oxidation of benzyl alcohol. Benzyl alcohol conversion of 93% was achieved with benzaldehyde as the main product. This Mn-based catalyst can be recycled up to six times without losing catalytic activity. X-ray diffraction (XRD) and X-ray absorption spectroscopy (XAS) indicated that MnOOH species are highly dispersed on the alumina surface at low Mn loadings (<10 wt.%). These MnOOH species aggregated into Mn3O4 crystallites at high Mn loadings.
Original language | English |
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Pages (from-to) | 1122-1126 |
Number of pages | 5 |
Journal | Catalysis Communications |
Volume | 10 |
Issue number | 7 |
DOIs | |
State | Published - 10 Mar 2009 |
Externally published | Yes |
Keywords
- Alumina
- Benzyl alcohol
- MnOOH
- Molecular oxygen