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

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• 作者：Shaozhong Li^a ; Wei Zhang^a ; Man-Ho So^b ; Chi-Ming Che^b ; Runming Wang^a ; Rong Chen^a ; ^{rchenhku@hotmail.com}
• 关键词：Pd/Fe3O4 ; Nanocomposite ; Catalysis ; Recyclable ; Suzuki reaction
• 刊名：Journal of Molecular Catalysis A ; Chemical
• 出版年：2012
• 期刊代码：57_13811169
• 类别：ch
• 出版时间：July, 2012
• 卷：359
• 期：Complete
• 页码：81-87
• 文件大小：1069 K

摘要

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.