溶剂化团簇银的制备及表征  

Solvated Ag Cluster Synthesis and Characterization

作　　者：郑化桂[1] 曾京辉[1] 梁家和[1] 刘方新 

机构地区：[1]中国科学技术大学化学系,合肥230026

出　　处：《物理化学学报》1999年第11期980-985,共6页Acta Physico-Chimica Sinica

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.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.

关 键 词：溶剂化 银团簇 团簇银 银胶体 

分 类 号：O614.122[理学—无机化学]