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

doi:10.1007/s11705-017-1669-4

Front. Chem. Sci. Eng. ›› 2018, Vol. 12 ›› Issue (1) : 24 -31. DOI: 10.1007/s11705-017-1669-4

RESEARCH ARTICLE

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

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Abstract

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.

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Keywords

Pd-Ni bimetallic nanoparticles / nanocatalysis / Suzuki-Miyaura reaction / titanium oxide

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Dongxu Han,Zhiguo Zhang,Zongbi Bao,Huabin Xing,Qilong Ren. Pd-Ni nanoparticles supported on titanium oxide as effective catalysts for Suzuki-Miyaura coupling reactions. Front. Chem. Sci. Eng., 2018, 12(1): 24-31 DOI:10.1007/s11705-017-1669-4