Oxidation of primary alcohols with air on carbon-supported platinum catalysts for the synthesis of aldehydes or acids

• Published in: Catalysis today Vol. 121; no. 1; pp. 13 - 21
• Main Authors: Korovchenko, Pavel, Donze, Cécile, Gallezot, Pierre, Besson, Michèle
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 2007; Elsevier Science; Elsevier
• Subjects: Air; Carbon-supported platinum catalysts; Catalysis; Chemical Sciences; Chemistry; Exact sciences and technology; General and physical chemistry; Oxidation; Primary alcohols; Selective; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; Carbon-supported platinum catalysts; Oxidation; Air; Primary alcohols; Selective; Transition metal; Aldehyde; Carbon; Supported catalyst; Primary alcohol; Heterogeneous catalysis; Synthesis; Acids; Platinum; Fine chemistry; Catalyst support; "Oxidation"; "Primary alcohols"; "Air"; "Carbon-supported platinum catalysts"; "Selective"
• ISSN: 0920-5861; 1873-4308
• DOI: 10.1016/j.cattod.2006.11.007

Carbon-supported platinum catalysts were shown highly efficient heterogeneous catalysts for the selective oxidation of various types of primary alcohols to the corresponding aldehydes and carboxylic acids, using a low pressure of air and a temperature of 100
°C. Especially, alcohols could be oxidized to afford the aldehyde in high yields in dioxane, whereas the carboxylic acid was selectively produced in dioxane/aqueous solution mixtures or dioxane/alkaline aqueous solution mixtures. The dispersion of the platinum catalyst was dependent on the carbon activation treatment and on the method of preparation and it influenced significantly the activity and the resulting selectivity. The platinum catalyst prepared by impregnation of CO
2-activated carbon showed the best results compared to platinum catalysts prepared on air-activated carbon or by cationic exchange.