(154g) Design of Nano-catalyst for Selective Activation of CO Bond of Cellulose Biomass

The selective oxidation of glycerol has the problems of poor selectivity of glyceric acid products and the need to add alkali during the reaction, which is not conducive to the separation of subsequent products and increases the production cost. In this project, starting from the design of high-efficiency Pt-based catalysts, by adding metal additives to change the control of the acidity and alkalinity of the carrier, and to change the interaction between the metal and the support (metal), the role of some Pt-based catalysts is discussed. Glycerol is efficiently oxidized to produce directional conversion of glyceric acid. In order to improve the stability of the Pt-based catalyst, the effect of Lewis acid on Pt metal and its catalytic performance was further studied using MCM-41 (Al) as a support. The Lewis acid site was obtained by incorporating Al in the MCM-41 support framework. The results show that there is a charge transfer between the support and Pt, which changes the adsorption relationship between the substance and weakens the adsorption of the support on the product, resulting in the weakness of the CC bond breakage. But at the same time, it weakens the adsorption of glycerol molecules so that the catalytic activity has lowered.