Carbon black and propylene oxidation over Ru/CexZr 1-xO2 catalysts

Doris Homsi; Samer Aouad; John El Nakat; Bilal El Khoury; Pierre Obeid; Edmond Abi-Aad; Antoine Aboukaïs

doi:10.1016/j.catcom.2011.01.014

Carbon black and propylene oxidation over Ru/Ce_xZr _1-xO₂ catalysts

Doris Homsi, Samer Aouad, John El Nakat, Bilal El Khoury, Pierre Obeid, Edmond Abi-Aad, Antoine Aboukaïs

Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

The effect of addition of ruthenium to different Ce_xZr _1-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 Ce _0.5Zr_0.5O₂ support and corresponding catalyst, Ru/Ce_0.5Zr_0.5O₂, 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.

Original language	English (US)
Pages (from-to)	776-780
Number of pages	5
Journal	Catalysis Communications
Volume	12
Issue number	8
DOIs	https://doi.org/10.1016/j.catcom.2011.01.014
State	Published - Mar 31 2011

Keywords

Carbon black
Catalyst
Cerium
Oxidation
Propylene
Ruthenium
Zirconium

ASJC Scopus subject areas

Catalysis
General Chemistry
Process Chemistry and Technology

Access to Document

10.1016/j.catcom.2011.01.014

Cite this

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title = "Carbon black and propylene oxidation over Ru/CexZr 1-xO2 catalysts",

abstract = "The effect of addition of ruthenium to different CexZr 1-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 Ce 0.5Zr0.5O2 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.",

keywords = "Carbon black, Catalyst, Cerium, Oxidation, Propylene, Ruthenium, Zirconium",

author = "Doris Homsi and Samer Aouad and {El Nakat}, John and {El Khoury}, Bilal and Pierre Obeid and Edmond Abi-Aad and Antoine Abouka{\"i}s",

year = "2011",

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doi = "10.1016/j.catcom.2011.01.014",

language = "English (US)",

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journal = "Catalysis Communications",

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T1 - Carbon black and propylene oxidation over Ru/CexZr 1-xO2 catalysts

AU - Homsi, Doris

AU - Aouad, Samer

AU - El Nakat, John

AU - El Khoury, Bilal

AU - Obeid, Pierre

AU - Abi-Aad, Edmond

AU - Aboukaïs, Antoine

PY - 2011/3/31

Y1 - 2011/3/31

N2 - The effect of addition of ruthenium to different CexZr 1-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 Ce 0.5Zr0.5O2 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.

AB - The effect of addition of ruthenium to different CexZr 1-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 Ce 0.5Zr0.5O2 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.

KW - Carbon black

KW - Catalyst

KW - Cerium

KW - Oxidation

KW - Propylene

KW - Ruthenium

KW - Zirconium

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