Water-Soluble, 1,3,5-Triaza-7-phosphaadamantane-Stabilized Palladium Nanoparticles and their Application in Biphasic Catalytic Hydrogenations at Room Temperature
作者:Maria Caporali、Antonella Guerriero、Andrea Ienco、Stefano Caporali、Maurizio Peruzzini、Luca Gonsalvi
DOI:10.1002/cctc.201300079
日期:2013.8
different nanoparticles obtained showed a narrow distribution range with average core sizes of 2.8, 3.2, and 3.5 nm. The activity of some of these Pd nanoparticles as catalysts in the biphasic hydrogenation of organic substrates under mild conditions has been tested, and good results and excellent reusability (up to nine catalytic runs) were obtained.
合成了通过亲水性笼状氨基膦配体1,3,5-三氮杂-7-磷金刚烷及其N-甲基衍生物稳定的水分散性Pd纳米颗粒,并通过TEM,NMR和UV光谱以及在胶体中对其进行了充分表征。通过X射线光电子能谱和粉末XRD确定固态。获得的三种不同的纳米颗粒显示出较窄的分布范围,平均芯尺寸为2.8、3.2和3.5 nm。测试了这些钯纳米粒子在温和条件下在有机底物双相加氢中作为催化剂的活性,并获得了良好的结果和出色的可重复使用性(最多9次催化运行)。