1. Palladium was supported on superparamagnetic nanoparticles: A magnetically recoverable catalyst for Heck reaction
- Author
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Zhang, Fengwei, Niu, Jianrui, Wang, Haibo, Yang, Honglei, Jin, Jun, Liu, Na, Zhang, Yubin, Li, Rong, and Ma, Jiantai
- Subjects
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NANOPARTICLES , *MAGNETIC properties of metals , *PALLADIUM catalysts , *HECK reaction , *TRANSMISSION electron microscopy , *PRECIPITATION (Chemistry) , *MAGNETITE , *PERFORMANCE evaluation - Abstract
Abstract: A novel and high-performance palladium-based catalyst for Heck reaction was prepared easily by the co-precipitation method. The catalyst was characterized by transmission electron microscopy (TEM), X-ray powder diffraction (XRD), vibrating sample magnetometry (VSM), X-ray photoelectron spectroscopy (XPS) and atomic absorption spectrophotometry (AAS). The catalyst afforded a fast conversion of the 4-bromonitrobenzene to 4-nitrostilbene at a catalyst loading of 5mol%, and the efficiency of the catalyst remains unaltered even after 6 repeated cycles. The excellent catalytic performance of the Pd/Fe3O4 catalyst might be attributed to the enhanced synergistic effect between Pd nanoparticles and magnetite. [Copyright &y& Elsevier]
- Published
- 2012
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