Journal
CATALYSIS COMMUNICATIONS
Volume 12, Issue 8, Pages 776-780Publisher
ELSEVIER
DOI: 10.1016/j.catcom.2011.01.014
Keywords
Carbon black; Catalyst; Cerium; Oxidation; Propylene; Ruthenium; Zirconium
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Funding
- Agence Universitaire de la Francophonie-Bureau du Moyen Orient
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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 degrees 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. (c) 2011 Elsevier B.V. All rights reserved.
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