Ward Edmund P W, Arslan Ilke, Midgley Paul A, Bleloch Andrew, Thomas John Meurig
Department of Materials Science and Metallurgy, University of Cambridge, UK.
Chem Commun (Camb). 2005 Dec 14(46):5805-7. doi: 10.1039/b511004a. Epub 2005 Oct 20.
Using a scanning transmission electron microscope, corrected for aberration, ultra-high resolution images of the internal structure of nanoparticle clusters, as well as the number of atoms present per cluster, may be directly determined: it is shown that individual bimetallic clusters of Ru10Pt2 have a "molecular" structure and that when they coalesce into larger entities containing ca. 200 atoms they adopt the regular crystalline, and facetted, state of a bulk metal.
使用经过像差校正的扫描透射电子显微镜，可以直接确定纳米颗粒团簇内部结构的超高分辨率图像以及每个团簇中存在的原子数量：结果表明，Ru10Pt2的单个双金属团簇具有“分子”结构，并且当它们聚结成包含约200个原子的更大实体时，它们会呈现块状金属的规则晶体且有刻面的状态。
