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Carbon black and propylene oxidation over Ru/CexZr1−xO2 catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
50896 46820 2011 5 PDF Available
Title
Carbon black and propylene oxidation over Ru/CexZr1−xO2 catalysts
Abstract

The effect of addition of ruthenium to different CexZr1−xO2 (0 ≤ x ≤ 1) supports on the oxidation of propylene and carbon black (CB) was investigated. The results showed that different reactive ruthenium oxide species are formed following calcination at 600 °C. The reactivity increases with the cerium content in the support, Ru/CeO2 being the most reactive catalyst. However, the Ce0.5Zr0.5O2 support and corresponding catalyst, Ru/Ce0.5Zr0.5O2, exhibited decreased reactivities comparing to solids with lower cerium content. This was ascribed to the formation of a solid structure that inhibits the interaction between cerium and ruthenium oxide species following impregnation.

Graphical AbstractFigure optionsDownload full-size imageDownload as PowerPoint slideResearch Highlights► CeO2, ZrO2 and mixed oxides enhance the oxidation of carbon black and propylene. ► The impregnation of ruthenium improves the solids reactivities. ► Interactions between RuOx and CeO2 are responsible for the enhanced reactivity. ► The specific surface area and the redox behavior affect the catalytic reactivity. ► Zirconium doping did not lead to enhanced oxygen storage/release capacity.

Keywords
Carbon black; Catalyst; Cerium; Oxidation; Propylene; Ruthenium; Zirconium
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Carbon black and propylene oxidation over Ru/CexZr1−xO2 catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 12, Issue 8, 31 March 2011, Pages 776–780
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
Any Questions? feel free to contact us