A size-selective synthesis of air stable colloidal magnetic cobalt nanoparticles
A size-selective synthesis of air stable colloidal magnetic cobalt nanoparticles
复制标题
DOI：
10.1016/s0020-1693(03)00108-7
复制
发表时间：
2003-07-04
影响因子：
2.8
通讯作者：
Modrow, H
中科院分区：
文献类型：
--
作者：
Bönnemann, H;Brijoux, W;Modrow, H
在烷基铝的存在下，通过CO -2(CO)s的热裂解，一种新颖的、尺寸选择性的制备方法可以获得空气稳定的“单分散”胶体钴纳米颗粒。x射线吸收近边结构测量证明了该制备途径提供了长期稳定的零价磁性钴颗粒。此外，这些测量表明，所使用的表面活性剂的化学性质对所分析的纳米颗粒的稳定性和局部电子和几何结构有显著影响。(C) 2003 Elsevier Science B.V.版权所有
A novel, size-selective preparation route leads to air stable 'monodisperse' colloidal cobalt nanoparticles via the thermolysis of Co-2(CO)s in the presence of aluminum alkyls. X-ray absorption near edge structure measurements have proved that this preparation pathway provides long term stable zerovalent magnetic Cobalt particles. In addition, these measurements show that the chemical nature of the surfactant used exerts a significant influence on the stability and the local electronic and geometric structure of the analyzed nanoparticles. (C) 2003 Elsevier Science B.V. All rights reserved.