One-pot solvothermal synthesis of Pd/Fe3O4 nanocomposite and its magnetically recyclable and efficient catalysis for Suzuki reactions

A facile solvothermal synthetic route has been successfully developed to fabricate Pd/Fe3O4 nanocomposite with the assistance of polyvinylpyrrolidone (PVP) in N,N-dimethylformamide (DMF) solution. The as-prepared Pd/Fe3O4 nanocomposite was composed of uniform 5 nm-sized Pd nanoparticles and Fe3O4 nanocrystals with dimension of 40 nm. In this fabrication, PVP played an important role as a capping agent. The as-prepared Pd/Fe3O4 nanocomposite exhibited superior catalytic performance and stability for various Suzuki coupling reactions, compared with single-component Pd nanoparticles under the same reaction conditions. More importantly, it displayed good magnetic property and could be easily separated from the reaction mixture by using a magnet and recycled for 10 times without losing its catalytic activity.

Graphical abstractPd/Fe3O4 nanocomposites were successfully synthesized by a facile solvothermal route with the assistance of PVP in DMF solution. The Pd/Fe3O4 nanocomposite exhibited superior catalytic performance and stability for various Suzuki coupling reactions, and could be recycled for 10 times without losing its catalytic activity.Figure optionsDownload full-size imageDownload high-quality image (256 K)Download as PowerPoint slideHighlights► Pd/Fe3O4 nanocomposite was synthesized by a facile solvothermal method. ► PVP played an important role as a capping agent. ► Pd/Fe3O4 nanocomposite exhibited superior catalytic performance for various Suzuki reactions. ► It displayed good magnetic property and could be recycled for 10 times.