A General Approach To Fabricate Fe<sub>3</sub>O<sub>4</sub>Nanoparticles Decorated with Pd, Au, and Rh: Magnetically Recoverable and Reusable Catalysts for Suzuki CC Cross-Coupling Reactions, Hydrogenation, and Sequential Reactions
作者:Ferran Gonzàlez de Rivera、Inmaculada Angurell、Marta D. Rossell、Rolf Erni、Jordi Llorca、Núria J. Divins、Guillermo Muller、Miquel Seco、Oriol Rossell
DOI:10.1002/chem.201301769
日期:2013.9.2
simultaneously Pd and Au (or Rh) are obtained by successive loading of metals. Similarly, ferrite nanoparticles decorated with Pd, Au, and Rh have also been formed by using the same strategy. The catalytic properties of the new nanoparticles are evidenced in processes such as reduction of 4‐nitrophenol or hydrogenation of styrene. Besides, the sequential process involving a cross‐coupling reaction followed
已探索出一种简便的策略,借助膦功能化的连接剂将贵金属负载到铁氧体纳米颗粒的表面。钯负载显示出膦功能和表面羟基的参与。通过连续加载金属获得同时包含Pd和Au(或Rh)的杂化纳米颗粒。类似地,也已通过使用相同的策略形成了装饰有Pd,Au和Rh的铁氧体纳米颗粒。这种新的纳米粒子的催化特性在4-硝基苯酚的还原或苯乙烯的氢化等过程中得到了证明。此外,通过使用Pd / Au装饰的纳米铁氧体颗粒,已经成功实现了包含交叉偶联反应然后还原1-硝基联苯的顺序过程。