Atomically precise coreless AuCu bimetallic nanoclusters for Ullmann C-O coupling  

作　　者：Yapei Yun Lin Li Manman Zhou Meng Li Ningning Sun Haifeng Li Shan Jin Chunshan Zuo Hongting Sheng Manzhou Zhu 

机构地区：[1]School of Materials Science and Engineering,Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials,Institutes of Physical Science and Information Technology,Department of Chemistry and Center for Atomic Engineering of Advanced Materials,Key Laboratory of Structure and Functional Regulation of Hybrid Materials of the Ministry of Education,Anhui University,Hefei 230601,China [2]College of Pharmaceutical and Chemical Enginnering,Huanghuai University,Zhumadian 463000,China

出　　处：《Nano Research》2023年第8期10756-10762,共7页纳米研究（英文版）

基　　金：We acknowledge financial support by the National Natural Science Foundation of China(Nos.21972001 and 21871001);Natural Science Foundation of Anhui Province(No.2008085MB37);Anhui University.

摘　　要：Bimetallic nanocluster with atomic precision has gained widespread attention due to its unique synergism.The coreless Au_(4)Cu_(5)bimetallic nanoclusters were selected as models to explore the relationship between their microstructure and performance,and compare with the coreless monometallic nanoclusters,core–shell nanoclusters,and single atom catalyst(SAC).The experimental results show that the coreless bimetallic nanocluster catalyst Au_(4)Cu_(5)/activated carbon(AC)exhibits high activity and stability in the Ullmann C–O coupling reaction,much higher than coreless monometallic nanoclusters(Au_(11)/AC and Cu_(11)/AC),core–shell nanoclusters(Au_(25)/AC,Cu_(25)/AC,and Au_(1)Cu_(24)/AC),and single atom catalysts(Au SAC and Cu SAC).Moreover,the coreless Au_(4)Cu_(5)/AC catalyst efficiently catalyzed the Ullmann C–O coupling of benzyl alcohol for the first time.This structure–activity relationship was successfully extended to other coreless bimetallic systems,such as Au_(4)Cu_(4)/AC nanocluster,and it is expected to provide new insights for the design of bimetallic catalysts with well-defined performance.

关 键 词：coreless nanoclusters bimetallic catalysts Ullmann C-O coupling metal synergy 

分 类 号：O64[理学—物理化学]