Activity promotion of Rh_(1)Ca_(x)/Al_(2)O_(3) single-atom catalyst in 1-octene hydroformylation:a volcano curve exists between Ca adding ratio and catalytic activity  

作　　者：Hao Zhang Xingcong Zhang Xilun Wang Qingdi Sun Hao Liu Hongbing Ji Xiaohui He 

机构地区：[1]Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education,Fine Chemical Industry Research Institute,School of Chemistry,IGCME,Sun Yat-sen University,Guangzhou 510275,China [2]Huizhou Research Institute,Sun Yat-sen University,Huizhou 516081,China [3]State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology,Institute of Green Petroleum Processing and Light Hydrocarbon Conversion,College of Chemical Engineering,Zhejiang University of Technology,Hangzhou 310014,China

出　　处：《Science China Chemistry》2024年第4期1187-1192,共6页中国科学（化学英文版）

基　　金：supported by the National Key Research and Development Program Nanotechnology Specific Project(2020YFA0210900);the Science and Technology Key Project of Guangdong Province,China(2020B010188002);Guangdong Natural Science Funds for Distinguished Young Scholar(2022B1515020035);Guangdong Provincial Key R&D Program(2019B110206002);the National Natural Science Foundation of China(22078371,21938001,21961160741);the Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program(2017BT01C102);the Natural Science Foundation of Guangdong Province(2020A1515011141);the Science and Technology Project of Guangzhou City,China(202102020461)。

摘　　要：Single-atom catalysts(SACs)are considered the best candidates for olefin hydroformylation due to their combined advantages of homogeneous and heterogeneous catalysts.Unlike conventional organo-phosphine modification,Rh SAC is modified by introducing Ca,resulting in a significant increase in activity(maximum~5.7-fold)and stability.Furthermore,a volcano curve between Ca addition ratio and catalytic activity is found.Introducing Ca significantly increases activity by decreasing the energy barrier,but excessive Ca decreases activity due to hindering substrate adsorption and reaction.

关 键 词：HYDROFORMYLATION bimetallic single-atom catalysts RHODIUM heterogeneous catalyst 

分 类 号：TQ426[化学工程]