Pd 纳米立方块的控制合成及其对 Suzuki 偶联反应的催化活性

摘要

Monomorphologic and uniform Pd nanocubes were synthesized with palladium chloride as precur-sor,tetraethylene glycol(TEG)as both solvent and reducing agent,polyvinylpyrrolidone(PVP)as stabilizer in the presence of an appropriate amount of KI under microwave irradiation for 90 s.The structure of Pd nanocubes obtained was face-centered cubic(fcc)with higher crystallinity,and the average particle size was 30 nm.Pd Nanocubes obtained were used in Suzuki coupling reaction and demonstrated better catalytical proper-ties.%以氯钯酸为前驱体、三缩四乙二醇（TEG）为溶剂和还原剂、聚乙烯吡咯烷酮（PVP）为保护剂、KI 为添加剂，微波辐照加热90 s，合成了形貌单一、大小均匀的 Pd 纳米立方块，平均粒径为30 nm，具有很高的结晶度，属于面心立方（fcc）结构。所合成的 Pd 纳米立方块对卤代苯和苯硼酸的 Suzuki 偶联反应具有良好的催化活性，且具有较高的催化稳定性。