Morphology-dependent support effect of PdCu/alpha-Fe_(2)O_(3) catalysts on Suzuki-Miyaura cross-coupling reaction  

作　　者：Ying Zhang Chengshan Dai Hongyu Fan Junnan Chen Li Gao Bingsen Zhang 

机构地区：[1]School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun,113001,China [2]Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,Shenyang,110016,China [3]School of Materials Science and Engineering,University of Science and Technology of China,Shenyang,110016,China

出　　处：《Particuology》2024年第11期274-280,共7页颗粒学报（英文版）

基　　金：financial support provided by the National Natural Science Foundation of China(grant No.22072164);the Research Fund of Shenyang National Laboratory for Materials Science.

摘　　要：The palladium-catalyzed Suzuki-Miyaura cross-coupling(SMC)reaction has received worldwide attention as a powerful and convenient synthetic tool for the formation of biaryl compounds.However,these reactions are highly dependent on the activity and stable of catalysts.Herein,the support morphology-dependent catalytic performance of SMC reactions was investigated.The truncated hexagonal bipyramid(α-Fe_(2)O_(3)-O)and rod-shaped morphologies of alpha-Fe_(2)O_(3)(α-Fe_(2)O_(3)-R)were used as support to prepare PdCu nanoparticles(NPs)catalysts by NaBH_(4) reduction method.For PdCu/α-Fe_(2)O_(3)-R catalysts,the smaller size of PdCu NPs and more low coordination Pd sites leading to its superior catalytic performance for SMC reactions.Furthermore,it can be easily recycled through centrifugation and reused several times without obvious loss on its catalytic performance.Identical location transmission electron microscopy method was used to investigate the structural evolution of PdCu/α-Fe_(2)O_(3)-R catalysts.The results found that its structure almost unchanged during the catalytic reaction.

关 键 词：Support morphology α-Fe_(2)O_(3) PdCu Suzuki-Miyaura cross-coupling IL-TEM method 

分 类 号：O64[理学—物理化学]