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Manganese oxide hollow structures with different phases: Synthesis, characterization and catalytic application

Paper ID Volume ID Publish Year Pages File Format Full-Text
51275 46837 2009 5 PDF Available
Title
Manganese oxide hollow structures with different phases: Synthesis, characterization and catalytic application
Abstract

Manganese oxide hollow structures with different phases were synthesized by calcination using a γ-MnO2 hollow structure as a precursor. Our results revealed that the as-synthesized β-MnO2 and Mn2O3 still maintained the morphology of the precursor. Compared with the MnO2 reported and conventional MnO2, both the γ-MnO2 and β-MnO2 hollow structures showed a higher catalytic activity and an excellent selectivity in the aerobic oxidation of cinnamyl alcohol to cinnamyl aldehyde. The TPR experiments demonstrated that the reduced size of crystallite, hollow nature and higher BET specific surface area were responsible for their higher catalytic activity.

Keywords
Manganese oxide; Hollow structure; Calcination; Aerobic oxidation; Cinnamyl alcohol
First Page Preview
Manganese oxide hollow structures with different phases: Synthesis, characterization and catalytic application
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 14, 25 August 2009, Pages 1844–1848
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis