Chinese Journal of Catalysis ›› 2015, Vol. 36 ›› Issue (4): 588-594.DOI: 10.1016/S1872-2067(14)60292-8

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Chemical vapor deposition of Pd(C3H5)(C5H5) for the synthesis of reusable Pd@ZIF-8 catalysts for the Suzuki coupling reaction

Mingming Zhang, Ya Gao, Chuang Li, Changhai Liang   

  1. Laboratory of Advanced Materials and Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
  • Received:2014-11-10 Revised:2014-12-29 Online:2015-03-23 Published:2015-03-23
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (21073023), the Fundamental Research Funds for the Central Universities (DUT13RC(3)41), and the Postdoctoral Science Foundation of China (2013M541220).

Abstract:

A zeolite-imidazolium-framework-supported Pd-based heterogeneous catalyst (Pd@ZIF-8) was prepared by a metal-organic chemical vapor deposition method under mild conditions using Pd(C3H5)(C5H5) as the Pd precursor. N2 adsorption and pore size distribution data showed that ZIF-8 and Pd@ZIF-8 both possessed high surface areas. Transmission electron microscopy images showed that Pd nanoparticles with sizes of about 1.5-3.5 nm were homogeneously dispersed on the ZIF-8 support in Pd@ZIF-8. The Pd@ZIF-8 catalyst showed good activity in Suzuki coupling reactions with several different kinds of aryl halides. It could be reused at least six times without dramatic loss of activity or decomposition of the ZIF-8 structure.

Key words: Palladium, ZIF-8, Metal-organic chemical vapor deposition, Suzuki coupling reaction