Catalytic oxidation of carbon black over Ru/CoxMg yAl2 catalysts

Amal Aoun; Samer Aouad; John El Nakat; Bilal El Khoury; Edmond Abi Aad; Antoine Aboukaïs

doi:10.1016/j.phpro.2011.10.001

Catalytic oxidation of carbon black over Ru/Co_xMg _yAl₂ catalysts

Amal Aoun, Samer Aouad, John El Nakat, Bilal El Khoury, Edmond Abi Aad, Antoine Aboukaïs

Chemistry

Research output: Contribution to journal › Conference article › peer-review

Abstract

Different catalysts based on ruthenium impregnated on hydrotalcites (Ru/Co_xMg_yAl₂-HT) were prepared by wet impregnation from aqueous nitrosyl nitrate solutions and activated under air at 600°C for 4 h. The reactivity of the catalysts was evaluated in the oxidation of carbon black (CB). The results showed that the best catalyst decreased the temperature at which the rate of carbon black oxidation is the highest by about 150°C. This good reactivity was attributed to the formation of easily reducible ruthenium and cobalt oxide species at the surface of the support. The addition of ruthenium made the reduction of surface and bulk cobalt oxides possible at lower temperatures.

Original language	English (US)
Pages (from-to)	1-5
Number of pages	5
Journal	Physics Procedia
Volume	21
DOIs	https://doi.org/10.1016/j.phpro.2011.10.001
State	Published - 2011
Event	7th International Conference on Material Sciences, CSM7 - Beirut, Lebanon Duration: May 20 2010 → May 22 2010

Keywords

Carbon black
Catalyst
Hydrotalcites
Oxidation
Ruthenium

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1016/j.phpro.2011.10.001

Cite this

@article{19ce55a7ab8a4c09ab17b474d9fc52ca,

title = "Catalytic oxidation of carbon black over Ru/CoxMg yAl2 catalysts",

abstract = "Different catalysts based on ruthenium impregnated on hydrotalcites (Ru/CoxMgyAl2-HT) were prepared by wet impregnation from aqueous nitrosyl nitrate solutions and activated under air at 600°C for 4 h. The reactivity of the catalysts was evaluated in the oxidation of carbon black (CB). The results showed that the best catalyst decreased the temperature at which the rate of carbon black oxidation is the highest by about 150°C. This good reactivity was attributed to the formation of easily reducible ruthenium and cobalt oxide species at the surface of the support. The addition of ruthenium made the reduction of surface and bulk cobalt oxides possible at lower temperatures.",

keywords = "Carbon black, Catalyst, Hydrotalcites, Oxidation, Ruthenium",

author = "Amal Aoun and Samer Aouad and {El Nakat}, John and {El Khoury}, Bilal and Aad, {Edmond Abi} and Antoine Abouka{\"i}s",

year = "2011",

doi = "10.1016/j.phpro.2011.10.001",

language = "English (US)",

volume = "21",

pages = "1--5",

journal = "Physics Procedia",

issn = "1875-3884",

publisher = "Elsevier BV",

note = "7th International Conference on Material Sciences, CSM7 ; Conference date: 20-05-2010 Through 22-05-2010",

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TY - JOUR

T1 - Catalytic oxidation of carbon black over Ru/CoxMg yAl2 catalysts

AU - Aoun, Amal

AU - Aouad, Samer

AU - El Nakat, John

AU - El Khoury, Bilal

AU - Aad, Edmond Abi

AU - Aboukaïs, Antoine

PY - 2011

Y1 - 2011

N2 - Different catalysts based on ruthenium impregnated on hydrotalcites (Ru/CoxMgyAl2-HT) were prepared by wet impregnation from aqueous nitrosyl nitrate solutions and activated under air at 600°C for 4 h. The reactivity of the catalysts was evaluated in the oxidation of carbon black (CB). The results showed that the best catalyst decreased the temperature at which the rate of carbon black oxidation is the highest by about 150°C. This good reactivity was attributed to the formation of easily reducible ruthenium and cobalt oxide species at the surface of the support. The addition of ruthenium made the reduction of surface and bulk cobalt oxides possible at lower temperatures.

AB - Different catalysts based on ruthenium impregnated on hydrotalcites (Ru/CoxMgyAl2-HT) were prepared by wet impregnation from aqueous nitrosyl nitrate solutions and activated under air at 600°C for 4 h. The reactivity of the catalysts was evaluated in the oxidation of carbon black (CB). The results showed that the best catalyst decreased the temperature at which the rate of carbon black oxidation is the highest by about 150°C. This good reactivity was attributed to the formation of easily reducible ruthenium and cobalt oxide species at the surface of the support. The addition of ruthenium made the reduction of surface and bulk cobalt oxides possible at lower temperatures.

KW - Carbon black

KW - Catalyst

KW - Hydrotalcites

KW - Oxidation

KW - Ruthenium

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