Synthesis of size controlled Ag nanoparticles

被引：140

作者：

He, BL

Tan, JJ

Kong, YL ^{[1
]}

Liu, HF

机构：

[1] S Cent Univ Nat, Coll Chem & Life Sci, Wuhan 430074, Peoples R China

[2] Univ Sains Malaysia, Sch Chem Sci, George Town 11800, Malaysia

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2004年 / 221卷 / 1-2期

关键词：

PVP; beta-cyclodextrin; stabilized Ag nanoparticles; microwave irradiation;

D O I：

10.1016/j.molcata.2004.06.025

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：

The parameters influencing the size of synthesized Ag nanoparticles are reported. The particles size decreased with increasing stabilizer: AgNO3 molar ratio, decreased with increasing amount of methanolic NaOH added until an optimum amount was reached, and decreased with small amount of methanolic HCl added but increased rapidly on further addition. The reducing activity of the reducing agent influenced the particle size significantly. In addition, increasing the concentration of water in the reducing agent increased the particles size nearly linearly. PVP is a better stabilizer than beta-CD to prevent aggregation of small particles. Microwave irradiation for 20 s at output power of 700 W produced smaller and more narrowly distributed Ag particles than conventional heating method. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：121 / 126

页数：6

共 20 条

[1] DNA-templated assembly and electrode attachment of a conducting silver wire [J].