Liquid-phase oxidation of 2-propanol to acetone by dioxygen using supported platinum catalysts

Liquid‐Phase Aerobic Oxidation of Benzyl Alcohol Catalyzed by Pt/ZrO2

“…Many researchers have reported the use of molecular oxygen as an oxidant for alcohol using different catalysts [4][5][6][7][8][9][10][11][12][13][14][15]. Water is the most preferred solvent [3][4][5][6][7][8]. However, to avoid over-oxidation of aldehydes to the corresponding carboxylic acids, dry conditions are required, which can be achieved in the presence of organic solvents at a relatively high temperature [1].…”

“…Carbon and Al 2 O 3 are more frequently used as support for platinum catalyzed alcohol oxidations in the liquid phase [1,4,5,8]. Zirconia supported platinum catalysts, which are of great interest due to their potential properties in different catalytic reactions, including oxidations reactions [16][17][18][19][20][21], have found very limited application in the liquid-phase oxidation of alcohols.…”

Graphite-Supported Platinum Catalysts: Effects of Gas and Aqueous Phase Treatments

“…Four deactivation mechanisms can be distinguished: (i) Deactivation by over-oxidation or oxygen poisoning has received the most attention. It has been reported for the oxidation of primary alcohols (5-10), secondary alcohols (8,(10)(11)(12), and carbohydrates (10,(13)(14)(15)(16)(17)(18)(19). It is generally accepted that over-oxidation is caused by the strong adsorption of oxygen or oxygen-containing species at the platinum surface (16-18, 20, 21).…”

“…It is generally accepted that over-oxidation is caused by the strong adsorption of oxygen or oxygen-containing species at the platinum surface (16-18, 20, 21). The catalyst activity is easily recovered by a mild in-situ reduction (11,(13)(14)(15)(16)18) or is avoided by regulation of the oxygen supply (3,4), application of diffusion-stabilized catalysts (3,4), or the addition of promoter metals to the platinum catalyst (9,10).…”

Efficiency of Iron Supported on Porous Material (Prepared from Peanut Shell) for Liquid Phase Aerobic Oxidation of Alcohols

“…However, at very large catalyst to reactant molecules ratio, the number of catalyst molecules exceeds the number of reactant molecules, and hence % conversion slows down, and remains almost constant. Another possible reason may be that for large catalyst quantities the rate of reaction is limited by the transport of molecular oxygen to the catalyst surface [19].…”