【摘要】 如何结合催化剂的制备找到一条新的催化剂分离与回收途径,已成为均相催化剂以及近十年快速发展的纳米催化剂研究中的一项重要内容。近年来,基于超顺磁性纳米颗粒为催化剂载体的工作因此受到广泛关注。利用超顺磁性纳米颗粒所提供的磁学特性进行磁分离,不仅有效地解决了分离与重复使用问题,而且因其尺度处于纳米级,保持了以上催化剂的高活性、高选择性等动力学优点。本文从超顺磁性纳米载体的制备、催化剂的制备与活动性评价等角度对近几年的研究工作进行综述,并对其发展前景进行展望。更多还原

【Abstract】 As far as the homogeneous catalyst or nano catalyst developed quickly in the past decade is concerned,it is one of the main research topics to find the new procedure to separate and recycle them out of the reaction mixture in combination with their preparation.Considering the above background,many related researches on the application of the superparamagnetic nanoparticle as the catalyst supporter have been conducted recently.Compared to their parent catalysts in solution,the magnetic nanoparticle-supported catalytic species not only allow facile separation and recycling of the catalyst under the extern magnetic field,but also keep their previous dynamic performance such as high activity and selectivity due to the body size under the nano meter scale.In this paper,the preparation of the superparamagnetic particle as the catalyst supporter as well as the catalytic activity is reviewed,and the direction of the further research is suggested.更多还原