Insights into the nature of alumina-supported MnOOH and its catalytic performance in the aerobic oxidation of benzyl alcohol

Qinghu Tang, Xiaonan Gong, Chengming Wu, Yuanting Chen, Armando Borgna, Yanhui Yang

Research output: Contribution to journalArticlepeer-review

54 Scopus citations

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 languageEnglish
Pages (from-to)1122-1126
Number of pages5
JournalCatalysis Communications
Volume10
Issue number7
DOIs
StatePublished - 10 Mar 2009
Externally publishedYes

Keywords

  • Alumina
  • Benzyl alcohol
  • MnOOH
  • Molecular oxygen

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