RESEARCH ARTICLE


Microwave-Assisted Synthesis of Pd Nanoparticles and Catalysis Application for Suzuki Coupling Reactions



Jian Zhang1, Xuefeng Bai1, 2, *
1 School of Chemistry and Material Sciences, Heilongjiang University, Harbin 150080, China
2 Institute of Petrochemistry, Heilongjiang Academy of Sciences, Harbin 150040, China


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© 2017 Zhang and Bai.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the School of Chemistry and Material Sciences, Heilongjiang University, Harbin 150080; Institute of Petrochemistry, Heilongjiang Academy of Sciences, Harbin 150040, China; Tel: 13503609332; Fax: 86 45182623693; E-mails: 15146001506@163.com, tommybai@126.com


Abstract

A facile and efficient method was developed for the synthesis of highly active palladium nanoparticles (PdNPs) by microwave-assisted chemical reduction. The PdNPs with different morphology were prepared with or without KBr (capping agent) using ethylene glycol (EG) and citric acid (CA) as reducing agent in the presence of polyvinylpyrrolidone (PVP), respectively. The as-prepared PdNPs were characterized by (UV-Visible Spectrophotometer) UV-Vis, transmission electron microscopy (TEM) and X-ray diffraction (XRD) analysis. The results showed that the PdNPs reduced by EG without KBr (PdNPs-EG) has smaller particle size than other PdNPs. The remarkable catalytic activity of the PdNPs catalysts are obtained using a low amount of PdNPs (0.1 mmol‰) using K2CO3 as base and EtOH/H2O as solvent toward Suzuki coupling reactions of aryl bromides and phenylboronic acid for 15 min.

Keywords: Palladium nanoparticles, Microwave, Suzuki coupling reactions.