The catalytic oxidation of 1-phenylethanol over SiO2 supported manganese oxide nanocluster prepared by PVP stabilized colloidal Mn as precursor

[Display omitted] •Supported manganese oxide nanoclusters catalyst was prepared by using PVP-stabilized colloidal Mn as precursor.•Manganese oxide nanocluster catalyst was active for the oxidation of 1-phenylethanol using O2 molecules without additives.•XAFS and TEM measurements revealed that the cl...

Full description

Saved in:
Bibliographic Details
Published in:Catalysis today 2020-08, Vol.352, p.250-254
Main Authors: Nakamura, Kyoko, Ichikuni, Nobuyuki, Hara, Takayoshi, Kojima, Takashi, Shimazu, Shogo
Format: Article
Language:English
Subjects:
1-Phenylethanol oxidation
Manganese oxide nanocluster
Mn colloid
XAFS
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:[Display omitted] •Supported manganese oxide nanoclusters catalyst was prepared by using PVP-stabilized colloidal Mn as precursor.•Manganese oxide nanocluster catalyst was active for the oxidation of 1-phenylethanol using O2 molecules without additives.•XAFS and TEM measurements revealed that the cluster size and chemical state of manganese oxide can be controlled.•XANES analysis showed that the chemical species of Mn was able to be controlled by changing the Mn loading. Supported MnOx nanocluster was prepared by PVP-stabilized Mn colloid as a precursor. Obtained catalysts were applied for 1-phenylethanol oxidation to produce acetophenone. Consequently, prepared catalysts were active for the oxidation of 1-phenylethanol using molecular oxygen without any additives such as base reagents. XAFS and TEM measurements revealed that the valence of manganese oxide and cluster size of manganese oxide on prepared catalysts can be controlled. In addition, the chemical state of Mn species varied with the loading amount of Mn.
ISSN:0920-5861
1873-4308
DOI:10.1016/j.cattod.2019.10.020