(560z) Catalytic Conversion of Glucose to Tartaric Acid over Au-Pt/TiO2 Catalysts
In this context, we systematically studied the transformation of TiO2 crystalline phases to explore the strong Metal-Support Interaction for enhanced oxidation performances. It is found that AuPt nanoparticles supported pure anatase TiO2 and a mixture of anatase and rutile phases have shown relatively better activity (conversion:100%) for glucose oxidation compared with pure rutile TiO2(conversion:<70%). As revealed by literature survey, it is believed that O vacancy and the phase junctions between anatase and rutile provide the activity sites for oxidation reactions.3 The influence of particle size, as well as metal-metal and metal-support interaction on catalyst performances will be presented in this work. The outcome of this study will provide insights into rational design of effective metal catalysts for oxidation of sugars to value-added chemicals.
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