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DOI: 10.1039/A705555B (Paper) Reference Section for: J. Chem. Soc., Faraday Trans., 1998, 94, 455-458

Surface potential study of adsorbed oxygen species on aerogel Cr2O3–Al2O3catalyst in toluene oxidation

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M. K. Younes, A. Ghorbel, A. Rives and R. Hubaut

Abstract

The surface potential, measured by the Kelvin method, allows one to determine the dominant oxygen species adsorbed on the surface of a Cr2O3–Al2O3 aerogel during catalysis of toluene oxidation. Between 523 and 623 K, reaction takes place by a redox mechanism, the rate-determining step being the dissociation of oxygen during the reoxidation of the reduced centre. These results are in full agreement with already published kinetic and spectroscopic studies.

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