Single-atom Pd catalyst anchored on Zr-based metal-organic polyhedra for Suzuki-Miyaura cross coupling reactions in aqueous media  

作　　者：Seongsoo Kim Seohyeon Jee Kyung Min Choi Dong-Sik Shin 

机构地区：[1]Division of Chemical and Bioengineering,Kangwon National University,Gangwon-do 24341,Republic of Korea [2]Department of Chemical and Biological Engineering,Sookmyung Womens University,100 Cheongpa-ro 47-gil,Yongsan-gu,Seoul 04310,Republic of Korea

出　　处：《Nano Research》2021年第2期486-492,共7页纳米研究（英文版）

基　　金：the Basic Science Research Program(No.NRF-2019R1A2C4069764);by Convergent Technology R&D Program for Hum an Augm entation(No.2019M3C1B8077549)through the National Research Foundation of Korea(NRF)funded by Ministry of Science and ICT.

摘　　要：The challenge for single-atom catalysts in various C-C cross coupling reaction exists in the development of solid supporting materials.It has been desired tofind a supporting material designed in molecular level to anchor a single-atom catalyst and provide high degree of dispersion and substrate access in aqueous media.Here,we prepared discrete cages of metal-organic polyhedra anchoring single Pd atom(MOP-BPY(Pd))and successfully performed a Suzuki-Miyaura cross coupling reaction with various substrates in aqueous media.It was revealed that each tetrahedral cage of MOP-BPY(Pd)has 4.5 Pd atoms on average and retained its high degree of dispersion up to 3 months in water.The coupling efficiencies of the Suzuki-Miyaura cross coupling reaction exhibited more than 90.0%for various substrates we have tested in the aqueous media,which is superior to those of the molecular Pd complex and metal-organic framework(MOF)anchoring Pd atoms.Moreover,MOP-BPY(Pd)was successfully recovered and recycled without performance degradation.

关 键 词：metal-organic polyhedra Suzuki-Miyaura cross coupling reaction structure characterization aqueous phase reaction high-degree of dispersion 

分 类 号：O64[理学—物理化学]