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Journal of the Southern African Institute of Mining and Metallurgy
versión On-line ISSN 2411-9717
versión impresa ISSN 2225-6253
Resumen
ROYKER, M.; CASE, J. y VAN STEEN, E.. Platinum promotion of Au/A1203 catalysts for glycerol oxidation: activity, selectivity and deactivation. J. S. Afr. Inst. Min. Metall. [online]. 2012, vol.112, n.spe, pp.577-581. ISSN 2411-9717.
Gold has been demonstrated as a possible catalyst for oxidation reactions. Some evidence for a possible promotion effect of platinum has also been recorded. The influence of platinum as promoter for Au/y-Al2O3 prepared via anionic ion-exchange for the oxidation of glycerol was investigated in a batch reactor at 60°C. It is inferred that the addition of platinum reduces the catalytic activity and the rate of deactivation, resulting in an overall higher final conversion of glycerol with increasing platinum loading. The addition of platinum to the catalyst favours the formation of the desired product, glyceric acid.
Palabras clave : gold-platinum catalysts; bimetallic catalysts; alumina; glycerol; oxidation..
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