Nanocrystalline silver particles: Synthesis, agglomeration, and sputtering induced by electron beam

被引：71

作者：

Li, YD ^{[1
]}

Duan, XF

Qian, YT

Yang, L

Liao, HW

机构：

[1] Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China

[2] Univ Sci & Technol China, Struct Res Lab, Hefei 230026, Anhui, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1999年 / 209卷 / 02期

基金：

中国国家自然科学基金;

关键词：

nanocrystalline; silver; agglomeration; sputtering; electron beam;

D O I：

10.1006/jcis.1998.5879

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：

Nanocrystalline silver particles with an average size of 15 nm have been prepared by reducing Ag(NH3)(2)(+) with N2H4 . H2O, with sodium dodecylbenzene sulfate (DBS) used as the stabilizing agent. The influence of DBS in the reaction is discussed. When the so-prepared silver particles were observed in situ under a transmission electron microscope, we observed an agglomeration and sputtering phenomenon induced by the electron beam. The possible reason for agglomeration and sputtering is proposed. Silver crystals of hexagonal shape, ranging from 20- to 120-mn in size, were formed on a copper grid. This phenomenon may offer a useful means of forming small particles. (C) 1999 Academic Press.

引用

页码：347 / 349

页数：3

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