Solvent-free selective oxidation of benzyl alcohol by molecular oxygen over uranium oxide supported nano-gold catalyst for the production of chlorine-free benzaldehyde

Controlling the Duality of the Mechanism in Liquid‐Phase Oxidation of Benzyl Alcohol Catalysed by Supported Au–Pd Nanoparticles

“…Following the discoveries by Haruta and Hutchings in the use of gold nanoparticles as catalysts for the oxidation of CO and ethyne hydrochlorination respectively in the 1980 s, interest in catalysis by supported gold and gold-palladium nanoparticles has expanded dramatically. [1] This has led to the discoveries of gold and gold palladium based catalysts for the direct synthesis of H 2 O 2 from H 2 and O 2 , [2] epoxidation of alkenes [3] and oxidation of alcohols [4] and polyols. [5] Oxidation is a fundamental functional-group transformation in general organic synthesis.…”

“…[9] For the stoichiometric oxidant, the obvious green candidate is molecular oxygen (air) or derived hydrogen peroxide, [10] while both supported gold and palladium nanoparticles show considerable promise as recyclable heterogeneous catalysts in this area, a combination which offers tremendous potential in terms of general environmental friendliness. [2][3][4][5] Selectivity and mechanism are features of this new science which must be understood to assist catalyst design and fine tuning. To achieve very high selectivity in a particular reaction, it is important to understand all the parallel and consecutive reactions that are active in the overall transformation, which can lead to side-products and thus a lower selectivity for the product of interest.…”

二氧化铀-钯-石墨烯纳米复合材料的合成及其催化4-硝基苯酚还原反应的研究

“…Uranium dioxide (urania) shows a hydrogen evolution electrocatalytic activity when combined with graphene [10]. Nevertheless, uranium oxides were seldom tested as the promoter in catalytic reaction, comparing to the conventional metal oxides [11,12]. However, the unique redox property may endow uranium oxides special advantage in serving as a catalyst promoter.…”

Heteropoly Tungstate Supported on Metal Oxide Catalysts for Liquid Phase Oxidation of Benzyl Alcohol with Hydrogen Peroxide

“…[1][2][3][4] These carbonyl compounds are normally produced by selective catalytic oxidation, which has been widely used in clean production of chemicals. [5][6][7][8][9] One of the major concerns for oxidation reaction is product selectivity, a challenge arising from the fact that most products are thermodynamically unstable.…”