期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 130, 期 49, 页码 16480-+出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja807160f
关键词
-
According to Derjaguin-Landau-Verwey-Overbeek (DLVO) theory, anions stabilize solutions of metal(0) nanopartictes by binding to the metal surface. However, the structure of the metal-anion interface in these colloidal systems has eluded direct observation. To address this, we deployed a 1.2-nm sized heteropolytungstate cluster anion, alpha-AlW11O399- (1),which features 11 W atoms (Z = 183) for effective imaging by electron microscopy, and a high negative charge to enhance binding to a prototypical Ag(0) nanoparticle. Cryogenic methods were then used to trap the 1-protected Ag(0) nanoparticles at liquid-N-2 temperatures within a water-glass matrix. The solution-state structures thus captured provide the first reported TEM images of self-assembled monolayers (SAMS) of anions on a colloidal metal(0) nanoparticle.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据