Fe3O4@TEA core-shell nanoparticles decorated palladium: A highly active and magnetically separable nanocatalyst for the Heck coupling reaction

In this paper, we describe the preparation and characterization of a new magnetic nanocatalyst supported palladium(II) acetate, which has a core-shell structure that developed based on the Fe3O4 functionalization using triethanolamine. Finally, palladium(II) was immobilized onto the Fe3O4@TEA core-shell structure, and the nanocatalyst (Fe3O4@TEA-Pd) was synthesized. This catalyst was characterized by Map analysis, Fouriertransform infrared spectroscopy, X-ray diffraction analysis, Thermogravimetric analysis, Transmission electron microscopy, Scanning electron microscopy, Vibrating-sample magnetometer, Inductively coupled plasma emission spectroscopy, Energy-dispersive X-ray spectroscopy techniques, and Hot-filtration test. This novel catalyst can be a cost-effective and practical catalyst for carbon-carbon bond construction reactions, and it has shown significant reactivity, stability, and high efficiency in the Heck coupling reactions with olefins and various aryl halides. Fe3O4@TEA-Pd, as a heterogeneous palladium catalyst, can be quickly recovered and can be reused in several runs without significantly reducing its catalytic activity. Other advantages of this catalyst include easy workup methods, affordable, and minimal palladium leaching.

Automated summary

This paper presents a new magnetic nanocatalyst with a core-shell structure, suitable for carbon-carbon bond construction reactions, showing significant stability and high efficiency. The catalyst is easy to recover and reuse, cost-effective, and has minimal palladium leaching.