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Catalytic oxidation of toluene over nanorod-structured Mn–Ce mixed oxides

Paper ID Volume ID Publish Year Pages File Format Full-Text
54599 47016 2013 9 PDF Available
Title
Catalytic oxidation of toluene over nanorod-structured Mn–Ce mixed oxides
Abstract

•Nanorod-structured Mn–Ce mixed oxides were synthesized successfully.•Mn–Ce nanorods with high ratio of Mn displayed the highest activity and stability.•The formation of solid solution was crucial for the excellent catalytic activity.•More Mn4+ and oxygen vacancy resulted from the presence of the solid solution.•Lattice oxygen was demonstrated to be involved in catalytic reactions.

Nanorod-structured Mn–Ce mixed oxides with various content of Mn were synthesized successfully. The resulting materials were characterized by SEM, TEM, HRTEM, EDX, XRD, BET, XPS, Raman, O2-TPD and H2-TPR. Mn–Ce mixed oxides nanorods with high content of Mn displayed the best catalytic activity and high stability. The formation of the solid solution between manganese and cerium oxides, giving rise to more Mn4+ and oxygen vacancies, was crucial in maintaining the high activity and stability, involving the participation of the induced mobile lattice oxygen. Thus, the catalytic activity of the single metal oxide with certain morphology could be further enhanced by doping the active component to form the mixed oxides that kept with the unchanged shape, despite of their lower surface area.

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Keywords
Nanorod-structured; Mn–Ce mixed oxides; Catalytic oxidation; Toluene
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Catalytic oxidation of toluene over nanorod-structured Mn–Ce mixed oxides
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 216, 1 November 2013, Pages 220–228
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
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