广州化学2024，Vol.49Issue(6)：53-59,7.DOI:10.16560/j.cnki.gzhx.20240612
MS-NH2@Pd-MS纳米催化剂的制备及其在Suzuki反应中的应用
Synthesis of MS-NH2@Pd-MS Nano-catalyst and Its High Catalytic Performance in Suzuki Reaction
摘要
Abstract
This paper reported a nano-palladium catalyst with double-layer mesoporous structure.The inner layer of mesoporous SiO2(MS)was prepared by soft-template method with a pore size of 4～7 nm.After modification with APTS,the nano palladium particles were loaded onto this layer to form MS-NH2@Pd.Subsequently,the silica was then encapsulated on the surface of MS-NH2@Pd,and a second mesoporous structure is formed by surface-protected base etching.The pore diameter of the outer shell is about 12～15 nm.The characterization of XRD,SEM,TEM,XPS showed that the size of Pd nanoparticles was about 3～5 nm which evenly distributed on the carrier.This catalyst showed excellent catalytic activity and functional group compatibility in the Suzuki coupling reaction,and there was no significantly reduction in catalytic activity after 6 times of recovery,which showing excellent stability.关键词
介孔二氧化硅/纳米Pd/Suzuki偶联反应/非均相催化/过渡金属催化Key words
mesoporous silica/nano-palladium/Suzuki coupling reaction/heterogeneous catalyst/transition-metal catalysis分类
化学化工引用本文复制引用
戴维清,杨召,梁鹏飞,宋娟..MS-NH2@Pd-MS纳米催化剂的制备及其在Suzuki反应中的应用[J].广州化学,2024,49(6):53-59,7.基金项目
南京邮电大学大学生创新训练计划项目 （）
南京邮电大学国自基金孵化项目(NY219058) （NY219058）
