Vitale Floriana, Fratoddi Ilaria, Battocchio Chiara, Piscopiello Emanuela, Tapfer Leander, Russo Maria Vittoria, Polzonetti Giovanni, Giannini Cinzia
ENEA (Italian National Agency for New Technologies, Energy and the Sustainable Economic Development), UTTMATB (Technical Unit of Materials Technologies - Brindisi), Brindisi Research Centre, S,S, 7 Appia km, 706, 72100 Brindisi, Italy.
Nanoscale Res Lett. 2011 Jan 27;6(1):103. doi: 10.1186/1556-276X-6-103.
Stable gold nanoparticles stabilized by different mono and bi-functional arenethiols, namely, benzylthiol and 1,4-benzenedimethanethiol, have been prepared by using a modified Brust's two-phase synthesis. The size, shape, and crystalline structure of the gold nanoparticles have been determined by high-resolution electron microscopy and full-pattern X-ray powder diffraction analyses. Nanocrystals diameters have been tuned in the range 2 ÷ 9 nm by a proper variation of Au/S molar ratio. The chemical composition of gold nanoparticles and their interaction with thiols have been investigated by X-ray photoelectron spectroscopy. In particular, the formation of networks has been observed with interconnected gold nanoparticles containing 1,4-benzenedimethanethiol as ligand.
通过改进的布斯特两相合成法制备了由不同单官能和双官能芳硫醇（即苄硫醇和1,4-苯二甲硫醇）稳定的稳定金纳米颗粒。通过高分辨率电子显微镜和全图谱X射线粉末衍射分析确定了金纳米颗粒的尺寸、形状和晶体结构。通过适当改变金/硫摩尔比，将纳米晶体直径调整在2至9纳米范围内。通过X射线光电子能谱研究了金纳米颗粒的化学成分及其与硫醇的相互作用。特别地，观察到以1,4-苯二甲硫醇作为配体的相互连接的金纳米颗粒形成了网络。
