کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
58442 | 47152 | 2007 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Oxidation of primary alcohols with air on carbon-supported platinum catalysts for the synthesis of aldehydes or acids Oxidation of primary alcohols with air on carbon-supported platinum catalysts for the synthesis of aldehydes or acids](/preview/png/58442.png)
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 CO2-activated carbon showed the best results compared to platinum catalysts prepared on air-activated carbon or by cationic exchange.
Journal: Catalysis Today - Volume 121, Issues 1–2, 15 March 2007, Pages 13–21