科学研究

Pd0@UIO-66-NH2催化剂的制备及其高效催化Suzuki偶联反应研究

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  • 1.常州大学石油化工学院,常州213100;
    2.盐城工学院,盐城224001
孙静雯(1994-),女,硕士研究生,主要从事催化材料合成研究。

收稿日期: 2020-02-05

  修回日期: 2021-03-01

  网络出版日期: 2021-06-10

基金资助

国家自然科学基金项目(21802119);国家自然科学基金项目(21906140)

Pd nanoparticle supported on UIO-66-NH2 for efficient catalytic Suzuki coupling reaction

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  • 1. School of Petrochemical Engineering,Changzhou University,Changzhou 213100;
    2. School of Chemistry and Chemical Engineering,Yancheng Institute of Technology,Yancheng 224001

Received date: 2020-02-05

  Revised date: 2021-03-01

  Online published: 2021-06-10

摘要

以原位合成的氨基功能化的高比表面积的金属有机框架材料(UIO-66-NH2)作为载体,制得了亚纳米分散的钯催化剂(Pd0@UIO-66-NH2,dPd=1.7nm)。Pd0@UIO-66-NH2在卤代苯与苯硼酸的Suzuki偶联反应中表现出优异的催化性能,联苯化合物收率高达99%,而且具有良好的底物适用性。另外,催化剂可以通过简单回收稳定重复使用5次以上。研究表明,Pd0@UIO-66-NH2的高催化性能和高稳定性主要归因于载体UIO-66-NH2的空腔限域效应和高比表面积,以及载体表面氨基官能团的电子作用。

本文引用格式

孙静雯, 刘阳庆, 于凉云, 姚康, 许琦 . Pd0@UIO-66-NH2催化剂的制备及其高效催化Suzuki偶联反应研究[J]. 化工新型材料, 2021 , 49(5) : 180 -185 . DOI: 10.19817/j.cnki.issn 1006-3536.2021.05.041

Abstract

Sub-2nm palladium nanoparticles were successfully constructed by anchoring Pd(OAc)2 into an amine-functionalized and highly porous metal organic framework (UIO-66-NH2) and successive reduction by H2 (Pd0@UIO-66-NH2).The catalyst Pd0@UIO-66-NH2 exhibited excellent performance (up to 99% yield for biphenyl compounds) in the Suzuki coupling reaction of halogenated benzene with phenylboronic acid.Moreover,the catalyst behaved well substrate compatibility.In addition,the catalyst can be recycled by simple filtration and performed stable reusability for at least 5 times.It was found that the efficient catalytic performance and high stability of Pd0@UIO-66-NH2 were mainly attributed to the cavity confinement effect,high porous and the free amino groups of the supporter UIO-66-NH2.

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