Pd-Ni nanoparticles supported on titanium oxide as effective catalysts for Suzuki-Miyaura coupling reactions
Dongxu Han , Zhiguo Zhang , Zongbi Bao , Huabin Xing , Qilong Ren
Front. Chem. Sci. Eng. ›› 2018, Vol. 12 ›› Issue (1) : 24 -31.
Pd-Ni nanoparticles supported on titanium oxide as effective catalysts for Suzuki-Miyaura coupling reactions
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.
Pd-Ni bimetallic nanoparticles / nanocatalysis / Suzuki-Miyaura reaction / titanium oxide
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Higher Education Press and Springer-Verlag GmbH Germany
Supplementary files
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