Abstract

In this research, a facile and reproducible approach was implemented for the synthesis of palladium nanoparticles supported on Fe3O4 with remarkable activity as an ideal catalyst for Suzuki-Miyaura cross-coupling. Magnetite supported Pd nanoparticles reveal high activity in Suzuki-Miyaura coupling reactions since they could be recycled up to seven times with the same high catalytic activity. This adopted method of catalyst synthesis has many advantages, including reproducibility and the reliability of the adopted synthetic method. The produced catalyst has unique magnetic properties to facilitate catalyst recovery from the reaction mixture by using a strong magnet as an external magnetic field. The synthetic approach adopted in this research is based on the microwave-assisted irradiation (MWI). The distinctive advantage of adopting this approach rather than conventional heating is the simplicity of adding reactants at mild reaction conditions. Moreover, this method offers a high rate of recyclability as the catalyst itself has a high recyclability rate up to seven times under mild reaction conditions, in addition to reproducibility with an excellent turnover number (8500) and a turnover frequency of 95 000 h−1. The magnetic properties of the prepared catalyst increase the possibility to separate and purify the products from the catalyst and other byproducts, leading to an increase in the economic value of the catalyst. The prepared catalyst was characterized by various spectroscopic techniques including x-ray photoelectron spectroscopy (XPS), x-ray diffraction (XRD), vibrating sample magnetometer (VSM), and transmission electron microscopy (TEM).

Department(s)

Chemical and Biochemical Engineering

Publication Status

Full Access

Keywords and Phrases

catalysis; magnetic nanoparticles; microwave irradiation; recycling; Suzuki-Miyaura coupling reactions

International Standard Serial Number (ISSN)

1939-019X; 0008-4034

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2023 Wiley, All rights reserved.

Publication Date

01 May 2019

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