Reactivity of Ru-based catalysts in the oxidation of propene and carbon black

Samer Aouad; Elias Saab; Edmond Abi Aad; Antoine Aboukaïs

doi:10.1016/j.cattod.2006.08.030

Reactivity of Ru-based catalysts in the oxidation of propene and carbon black

Samer Aouad, Elias Saab, Edmond Abi Aad, Antoine Aboukaïs

Chemistry

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

Abstract

The relationship between the state of Ru on different supports and catalytic activity in the oxidation of propene and carbon black was investigated for catalysts prepared by different impregnation methods. It is demonstrated that the addition of ruthenium to ceria (CeO₂), alumina (Al₂O₃) and ceria-alumina significantly improves the reactivity: the temperature of carbon black oxidation decreases by 100-140 °C. It is also shown that the addition of Ru to the different supports is very beneficial for the total oxidation of propene. Temperature programmed reduction (TPR) experiments of the catalysts showed that the oxygen species of ruthenium oxides are reduced at low temperatures which is the main reason of its high reactivity in oxidation reactions.

Original language	English (US)
Pages (from-to)	273-277
Number of pages	5
Journal	Catalysis Today
Volume	119
Issue number	1-4
DOIs	https://doi.org/10.1016/j.cattod.2006.08.030
State	Published - Jan 15 2007

Keywords

AlO
Carbon black
CeO
Oxidation
Propene
Ruthenium
TPR

ASJC Scopus subject areas

Catalysis
General Chemistry

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10.1016/j.cattod.2006.08.030

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title = "Reactivity of Ru-based catalysts in the oxidation of propene and carbon black",

abstract = "The relationship between the state of Ru on different supports and catalytic activity in the oxidation of propene and carbon black was investigated for catalysts prepared by different impregnation methods. It is demonstrated that the addition of ruthenium to ceria (CeO2), alumina (Al2O3) and ceria-alumina significantly improves the reactivity: the temperature of carbon black oxidation decreases by 100-140 °C. It is also shown that the addition of Ru to the different supports is very beneficial for the total oxidation of propene. Temperature programmed reduction (TPR) experiments of the catalysts showed that the oxygen species of ruthenium oxides are reduced at low temperatures which is the main reason of its high reactivity in oxidation reactions.",

keywords = "AlO, Carbon black, CeO, Oxidation, Propene, Ruthenium, TPR",

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AU - Aouad, Samer

AU - Saab, Elias

AU - Abi Aad, Edmond

AU - Aboukaïs, Antoine

PY - 2007/1/15

Y1 - 2007/1/15

N2 - The relationship between the state of Ru on different supports and catalytic activity in the oxidation of propene and carbon black was investigated for catalysts prepared by different impregnation methods. It is demonstrated that the addition of ruthenium to ceria (CeO2), alumina (Al2O3) and ceria-alumina significantly improves the reactivity: the temperature of carbon black oxidation decreases by 100-140 °C. It is also shown that the addition of Ru to the different supports is very beneficial for the total oxidation of propene. Temperature programmed reduction (TPR) experiments of the catalysts showed that the oxygen species of ruthenium oxides are reduced at low temperatures which is the main reason of its high reactivity in oxidation reactions.

AB - The relationship between the state of Ru on different supports and catalytic activity in the oxidation of propene and carbon black was investigated for catalysts prepared by different impregnation methods. It is demonstrated that the addition of ruthenium to ceria (CeO2), alumina (Al2O3) and ceria-alumina significantly improves the reactivity: the temperature of carbon black oxidation decreases by 100-140 °C. It is also shown that the addition of Ru to the different supports is very beneficial for the total oxidation of propene. Temperature programmed reduction (TPR) experiments of the catalysts showed that the oxygen species of ruthenium oxides are reduced at low temperatures which is the main reason of its high reactivity in oxidation reactions.

KW - AlO

KW - Carbon black

KW - CeO

KW - Oxidation

KW - Propene

KW - Ruthenium

KW - TPR

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JO - Catalysis Today

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IS - 1-4

ER -

Reactivity of Ru-based catalysts in the oxidation of propene and carbon black

Abstract

Keywords

ASJC Scopus subject areas

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