In this paper, a novel nanocatalyst is designed and synthesized based on the immobilization of palladium acetate onto the organically modified magnetic iron oxide nanoparticles. γ-Fe₂O₃@SiO₂(CH₂)₃-HPBM-Pd is synthesized thorough the functionalization of γ-Fe₂O₃@SiO₂ nanoparticles by 2-(2′-hydroxyphenyl)-benzothiazole (HPBM) functionality, which is used as an efficient ligand for palladium ions. The nanocatalyst is characterized by several characterization techniques, including TEM, SEM, DLS, FT-IR, NMR, VSM, and ICP analysis. The catalytic activity of γ-Fe₂O₃@SiO₂(CH₂)₃-HPBM-Pd nanoparticles is evaluated in the Mizoroki-Heck and Suzuki-Miyaura cross-coupling reactions. The nanocatalyst showed very good activity toward the mentioned reactions in water in the presence of 0.20 mol% of the Pd catalyst. In addition, the catalyst showed to be highly reusable and the catalyst turnover number calculated to be 4600 in 10 sequential runs.

在本文中，基于乙酸钯固定在有机改性的磁性氧化铁纳米粒子上，设计并合成了一种新型的纳米催化剂。了γ-Fe ₂ ö ₃ @SiO ₂（CH ₂）₃ -HPBM-Pd的合成透彻的官能γ -Fe ₂ ö ₃ @SiO ₂纳米颗粒通过2-（2'-羟基苯基） -苯并噻唑（HPBM）功能，用作钯离子的有效配体。纳米催化剂通过多种表征技术进行表征，包括TEM，SEM，DLS，FT-IR，NMR，VSM和ICP分析。的催化活性γ-的Fe ₂ ö ₃在Mizoroki-Heck和Suzuki-Miyaura交叉偶联反应中评估了@SiO ₂（CH ₂）₃ -HPBM-Pd纳米颗粒。在0.20mol％的Pd催化剂存在下，纳米催化剂在水中对上述反应显示出非常好的活性。另外，该催化剂显示出高度可重复使用的特性，并且在10个连续运行中，该催化剂的周转数计算为4600。