Abstract Pd nanoparticles decorated on cubic shaped ZIF-based materials have been successfully prepared. The nanocomposites have been characterized by X-ray diffraction, field emission scanning electron microscopy, N2 sorption analysis, and transmission electron microscopy. The catalytic activities of synthesized materials were evaluated in Suzuki-Miyaura cross-coupling. The results showed the catalytic activity of Pd@A-ZIF-8 was higher than Pd@A-ZIF-67 and Pd@A-BMZIF. Additionally, the catalytic activities of as-synthesized nanocomposites were studied on the reduction of nitroarenes. The catalytic activity of Pd@A-ZIF-67 was higher than Pd@A-ZIF-8 and Pd@A-BMZIF in the reduction of nitrobenzene. The synergistic action between Pd and Zn, Pd and Co species may play an important role in highly active catalytic species in Suzuki-Miyaura cross-coupling reaction and reduction of nitroarenes, respectively. The reusability of as-synthesized nanocomposites was checked, and the catalytic activity was retained after six consecutive reaction runs.

中文翻译：

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负载在立方形 ZIF 基材料上的 Pd 纳米粒子及其在有机反应中的催化活性

摘要 已成功制备了装饰在立方形 ZIF 基材料上的 Pd 纳米粒子。纳米复合材料已通过 X 射线衍射、场发射扫描电子显微镜、N2 吸附分析和透射电子显微镜进行表征。在 Suzuki-Miyaura 交叉偶联中评估合成材料的催化活性。结果表明，Pd@A-ZIF-8的催化活性高于Pd@A-ZIF-67和Pd@A-BMZIF。此外，还研究了合成的纳米复合材料对硝基芳烃还原的催化活性。Pd@A-ZIF-67在还原硝基苯方面的催化活性高于Pd@A-ZIF-8和Pd@A-BMZIF。Pd和Zn之间的协同作用，Pd 和 Co 物种可能分别在 Suzuki-Miyaura 交叉偶联反应和硝基芳烃还原中的高活性催化物种中起重要作用。检查合成的纳米复合材料的可重复使用性，并在连续六次反应运行后保持催化活性。