Facile synthesis of biaryls by palladium nanoparticles adorned on kaolin/NiFe2O4 composite as a magnetically retrievable nanocatalyst

The fabrication of catalyst systems with magnetically separable has recently gained much attention because they provide economical and practical advantages in catalytic reactions. In this study, an eco-friendly, inexpensive, and magnetically retrievable novel catalyst was successfully prepared with the stabilization of palladium nanoparticles on kaolin/spinel nickel ferrite composite (Pd-kaolin/NiFe2O4). The structural and morphological characteristics of the designed Pd-kaolin/NiFe2O4 nanocatalyst were investigated by FT-IR, XRD, TG/DTG, FESEM, EDS, and TEM analyses. The catalytic potential of Pd-kaolin/NiFe2O4 nanocatalyst was then investigated in Suzuki cross coupling reaction, and a variety of biaryls were obtained with high reaction yields in solvent-free media in very short reaction time. Additionally, the catalytic tests demonstrated that Pd-kaolin/NiFe2O4 nano catalyst could be isolated easily and recycled for multiple times. The study indicates that the designed Pd-kaolin/ NiFe2O4 is a useful and stabile nanocatalyst for the construction of biaryls.

Automated summary

This study successfully prepared an eco-friendly, inexpensive, and magnetically retrievable novel nanocatalyst for Suzuki cross coupling reaction, which can efficiently carry out reactions in solvent-free media. The nanocatalyst has the advantages of magnetically separable and recyclable, demonstrating potential for multiple applications.