Interaction between Pd and Cu nanoparticles in bimetallic CuPdx nanoparticles and its impact on oxidation of 1,2-propanediol to aliphatic acids  

作　　者：Wei Tao Aili Wang Hengbo Yin 

机构地区：[1]Faculty of Chemistry and Chemical Engineering,Jiangsu University,Zhenjiang 212000,China

出　　处：《Chinese Journal of Chemical Engineering》2020年第4期1085-1094,共10页中国化学工程学报（英文版）

基　　金：financially supported by the Funding of Jiangsu Science and Technology Department,China(FZ20180919)。

摘　　要：Bimetallic CuPdx nanoparticles synthesized by the wet chemical reduction method were used as the catalysts in the catalytic oxidation of 1,2-propanediol with gaseous oxygen to aliphatic acids.The palladium and copper nanoparticles in the bimetallic CuP dxnanoparticles had an alloying trend.The catalytic activity of the palladium nanoparticles in the bimetallic CuP dxnanoparticles was enhanced by the interaction between the palladium and copper nanoparticles.When the bimetallic CuPd7 nanoparticles catalyzed the oxidation of 1,2-propanediol in an alkaline aqueous solution at 100℃for 3h,lactic,formic,and acetic acids were dominantly produced with the total selectivity of above 99%at the 1,2-propanediol conversion of 85.9%.The simulation of the reaction kinetic equation on the CuPd7 catalyst showed that the reaction activation energy was 29.4kJ·mol^-1,indicating that the bimetallic CuPd7 nanoparticles had a high catalytic activity in the oxidation reaction between 1,2-propanediol and gaseous oxygen.

关 键 词：Bimetallic CuPdx nanoparticles 1 2-PROPANEDIOL Aliphatic acids 

分 类 号：O621.251[理学—有机化学]