Pd-Ni nanoparticles supported on titanium oxide as effective catalysts for Suzuki-Miyaura coupling reactions

作     者：Dongxu Han Zhiguo Zhang Zongbi Bao Huabin Xing Qilong Ren 

作者机构：Key Laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological Engineering Zhejiang University Hangzhou 310027 China 

出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿（英文版）)

年 卷 期：2018年第12卷第1期

页      面：24-31,F0004页

核心收录：

学科分类：081705[工学-工业催化] 0817[工学-化学工程与技术] 08[工学] 0806[工学-冶金工程] 080601[工学-冶金物理化学] 0703[理学-化学] 

基　　金：Acknowledgements We are grateful for financial support from the National Key R&D Program of China (Grant No. 2016YFA0202900)  the National Natural Science Foundation of China (Grant Nos. 21376212 and 21436010) 

主　　题：Pd-Ni bimetallic nanoparticles nanocatalysis Suzuki-Miyaura reaction titanium oxide 

摘      要：We have successfully prepared a series of Pd- Ni/TiO2 catalysts by a one-step impregnation-reduction method. Among these catalysts with different compositions of Ni and Pd, the one with the Ni：Pd ratio of 2.95 showed the best activity. Small monodispersed Pd-Ni bimetallic nanoparticles were loaded on the surface of titanium oxide nanopowder as confirmed with TEM and EDS mapping. The XPS analysis demonstrated that Pd exists as 31% Pd（II） species and 69% Pd（0） species and all nickel is Ni（II）. The prepared Pd-Ni/TiO2 exhibited enhanced catalytic activity compared to an equal amount of Pd/TiO2 for Suzuki-Miyaura reactions together with excellent applicability and reusability.