In this study, a cheap and easily recyclable “tea-bag” shaped Cu(Fe-Cl)/Al catalyst was fabricated to catalyze the Suzuki-Miyaura coupling reactions with good yields. It was found that, after being doped with iron and chlorine, catalytic activity of the materials was prominently enhanced. The unique electron-donation mechanism enabled the reduction from Cu (Ⅱ) to Cu (Ⅰ) after iron doping, which greatly improved the catalytic activity. An in-depth analysis of the reaction mechanism was then probed using characterizations such as XPS, HRTEM, and control experiments. Compared with traditional homogeneous or heterogeneous metal catalysts, this study can provide a green and economical choice to afford a free-standing recyclable catalyst with extremely high turnover numbers (TON up to 9.1 × 10³) for Suzuki cross-coupling reactions.

在这项研究中，制造了一种廉价且易于回收的“茶包”形 Cu(Fe-Cl)/Al 催化剂，以良好的收率催化 Suzuki-Miyaura 偶联反应。结果表明，掺杂铁和氯后，材料的催化活性显着增强。独特的给电子机理使铁掺杂后Cu(Ⅱ)还原为Cu(Ⅰ)，大大提高了催化活性。然后使用 XPS、HRTEM 和对照实验等表征对反应机理进行了深入分析。与传统的均相或非均相金属催化剂相比，本研究可以提供一种绿色经济的选择，以提供具有极高周转数（TON 高达 9.1 × 10 ^{3 ）的独立式可回收催化剂。}) 用于 Suzuki 交叉偶联反应。