Formation of silver nanoparticles in an acid-catalyzed silica colloidal solution

被引：31

作者：

Jiang, ZJ ^{[1
]}

Liu, CY ^{[1
]}

Liu, Y ^{[1
]}

机构：

[1] Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100101, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2004年 / 233卷 / 1-4期

基金：

中国国家自然科学基金;

关键词：

silica colloidal panicles; silver nanoparticles; plasmon absorption band;

D O I：

10.1016/j.apsusc.2004.03.224

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In a weak basic, weak acidic or neutral water-alcohol solution, silver nanoparticles were generated by the reduction of Ag+ ions in the present of colloidal silica. Silica as a substrate played an important role in the formation of Silver particles. The plasmon band of silver particles supported on the surface of silica was considerably shifted to longer wavelength compared with the pure silver sol. The shift in absorption spectra was explained in terms of surface effects induced by the interaction of silver and silica, as well as size effects and irregular shape. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：135 / 140

页数：6