纳米Fe_3O_4@Te@Pd核壳催化剂的制备及催化合成烯基膦酸酯性能研究  

Preparation of Nano-Fe_3O_4@Te@Pd Core-Shell Catalyst and Its Catalytic Performance for the Synthesis of Olefin Phosphonates

作　　者：田宗明[1] 刘林利 Tian Zongming;Liu Linli(Zhejiang Pharmaceutical College,Ningbo 315100,China)

机构地区：[1]浙江医药高等专科学校,浙江宁波315100

出　　处：《山东化工》2019年第9期42-44,47,共4页Shandong Chemical Industry

基　　金：宁波市自然科学基金(2016A610237)项目资助;浙江省大学生科技创新活动计划(2018R458007)项目资助

摘　　要：采用水热法制备了铁磁性核的多相纳米Fe_3O_4@Te@Pd核壳催化剂,通过扫描电镜、能谱对催化剂的微观形貌和元素组成进行表征,以合成烯基膦酸酯的反应评价催化剂的催化性能。制备的Fe_3O_4@Te@Pd核壳催化剂与均相钯催化剂(如Pd(PPh_3)_4)相比,前者重复回收利用多达8次,每次催化反应产物收率都在96.8%以上。Fe3O4@Te@Pd core-shell catalysts with ferromagnetic core were prepared by hydrothermal method. The morphology and elemental composition of the catalysts were characterized by scanning electron microscopy(SEM) and energy dispersive spectroscopy(EDS). The catalytic performance of the catalysts was evaluated by the reaction of synthesis of olenyl phosphonates. Compared with the homogeneous palladium catalyst(such as Pd(PPh3)4), the prepared Fe3O4@Te@Pd core-shell catalyst can be recycled up to eight times,and the yield of each catalytic reaction is more than 96.8%.

关 键 词：水热法 Fe3O4@Te@Pd核壳催化剂 烯基膦酸酯 催化性能 

分 类 号：O643.36[理学—物理化学]