Sol-gel法制备纳米KF/Al_2O_3复合催化剂及其表征

Preparation of KF/Al_2O_3 nanocomposite catalyst by a sol-gel method and its characterization

首次用sol-gel法合成了纳米KF/Al2O3复合超强碱催化剂,克服了传统浸渍法的易团聚及负载物分布不均匀等缺点。用Knoevenagel反应对所制备的KF/Al2O3复合催化剂的催化性能进行了研究,用均匀设计软件对催化剂的制备过程进行了优化,用SEM、XRD、XPS对催化剂进行了表征。

The KF/Al_2O_3 nano superbase composite catalyst was prepared by a sol-gel method.The Knoevenagel reaction was selected to test the catalyst's performance and used the 'Even Design' software to optimize the preparation process.The catalyst was characterized by SEM,XRD and XPS.