物理化学学报 >> 1999, Vol. 15 >> Issue (11): 980-985.doi: 10.3866/PKU.WHXB19991105

研究论文 上一篇    下一篇

溶剂化团簇银的制备及表征

郑化桂, 曾京辉, 梁家和, 刘方新   

  1. 中国科学技术大学化学系,合肥 230026
  • 收稿日期:1999-01-11 修回日期:1999-03-22 发布日期:1999-11-15
  • 通讯作者: 郑化桂

Solvated Ag Cluster Synthesis and Characterization

Zheng Hue-Gui, Zeng Jing-Hui, Liang Jia-He, Liu Fang-Xin   

  1. Department of Chemistry,University of Science and Technology of Chna,Hefei 230026
  • Received:1999-01-11 Revised:1999-03-22 Published:1999-11-15
  • Contact: Zheng Hue-Gui

摘要:

报导了在O/W, W/O, W/O/W以及LC这些有序分子集合体中制备Ag胶体的研究成果.利用W/O/W和LC可实现用高浓度AgNO3与N2H4•H2O反应制备出10nm以下的稳定Ag粒及Ag胶体. 采用紫外可见、X射线衍射、电子显微技术对胶体及银粒进行了表征. 发现团簇Ag外有层状结构.通过分析指出, 层状结构体现了表面活性剂、助表面活性剂的有序双分子包复.

关键词: 溶剂化, 团簇Ag, W/O/W, LC

Abstract:

Synthesis works on Ag clusters in ordered phase of O/W, W/O and LC are reported. Stabilized Ag particles and gel can be synthesized from high concentration of AgNO3 reduced by N2H4•H2O applying W/O/W or LC. The gel and particles were characterized by UV-visible spectrum, X-ray diffraction and transparent electron microscopy. We found the layer structure surrounding Ag clusters which illustrateds the double layer ordered phase coatings of surfactant and auxosurfactant.

Key words: Dissolvable, Ag cluster, W/O/W, LC