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固定铜 (II) 在AgCo₃O₄上的Diisatin-Schiff基础复合物纳米颗粒作为烯氧化有效催化剂

Mohamed Shaker S Adam¹, Mohamed M Makhlouf², Hussah A Alawisi¹

¹Department of Chemistry, College of Science, King Faisal University, P.O. Box 400, Al-Ahsa, 31982, Saudi Arabia.

Chemistry, an Asian journal

|July 24, 2025

概括

一个新的铜 (II) 复合物 (Cu (HmeL) 2Cl2) 和它的纳米粒子复合物 (Cu (HmeL) 2Cl2@AgCo3O4) 已被合成用于有机氧化反应. 纳米催化剂在 styrene 环氧化过程中表现出提高效率和可重复使用性.

科学领域:

协调化学协调化学
纳米催化剂的使用
绿色化学绿色化学

背景情况:

工业有机氧化反应需要高效和可持续的催化系统.
不同质的催化剂在分离和重复使用方面比同质的催化剂具有优势.
铜复合物在各种催化氧化过程中表现有前途.

研究的目的:

为了合成和描述一种新的单有机金属Cu (II) diisatin-Schiff基复合物 (Cu (HmeL) 2Cl2).
通过对AgCo3O4纳米颗粒 (Cu(HmeL) 2Cl2进行Cu(HmeL) 2Cl2涂层来开发一个异质的纳米催化剂.
在烯环氧化中评估和比较同质复合物和异质纳米催化剂的催化性能.

主要方法:

合成和结构阐明的Cu (II) 复合物和纳米复合物使用光谱技术.
通过光谱微观方法对纳米复合材料的形态,结构和元素组成进行表征.
在不同条件下 (温度,时间,溶剂,有氧环境) 使用水性H2O2对烯氧化的一致性和异质性系统进行催化试验.

主要成果:

在Cu(HmeL) 2Cl2复合物和Cu(HmeL) 2Cl2@AgCo3O4纳米复合物成功合成和表征.
纳米催化剂Cu(HmeL) 2Cl2@AgCo3O4在5小时后在90°C的烯环氧化中获得了90%的产量.
与同质催化剂 (3 个周期) 相比,异质纳米催化剂的可重复使用性 (7 个周期) 提高.

结论:

对Cu(HmeL) 2Cl2复合物的异质化到AgCo3O4纳米粒子上显著改善了其催化活性和稳定性.
该Cu(HmeL) 2Cl2@AgCo3O4纳米催化剂为高效和可回收的 styrene 环氧化提供了一个有前途的系统.
这项研究有助于开发用于工业有机氧化反应的先进催化材料.

关键词:

在AgCo3O4纳米粒子中.甲基氨酸是什么甲基氨酸铜 (II) 酸盐铜 (II) 酸盐聚乙烯的氧化方式

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