共 34 条
Oriented growth behavior of Ag nanoparticles using SDS as a shape director
被引:12
作者:
Tan, Zhenquan
[1
]
Abe, Hiroya
[1
]
Naito, Makio
[1
]
Ohara, Satoshi
[1
]
机构:
[1] Osaka Univ, Joining & Welding Res Inst, Osaka 5670047, Japan
关键词:
Ag nanoparticles;
SDS;
Shape control;
Soft template;
SILVER NANOPARTICLES;
PLATINUM NANOPARTICLES;
LASER-ABLATION;
NANOCRYSTALS;
GOLD;
TEMPLATES;
MICELLES;
SURFACTANTS;
MECHANISM;
SURFACES;
D O I:
10.1016/j.jcis.2010.04.018
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:
We report a chemical approach for synthesizing shape-controlled Ag nanoparticles by using the surfactant SOS as a soft template. The experimental approach includes a two-step reaction: the first step is quickly generating Ag seed clusters by a chemical reaction using sodium borohydride as a reducing reagent; the second is the slow growth of controllable Ag nanoparticles by a mild chemical reaction using hydroxylamine hydrochloride as a reducing reagent. Spherical, polyhedral, and fibrous Ag nanoparticles are synthesized successfully in aqueous solution having SOS concentrations of 0.01, 0.02, and 0.2 wt.%, respectively. Size, morphology, and dispersion stability of these Ag nanoparticles depend on the concentrations of both SOS and AgNO(3). (C) 2010 Elsevier Inc. All rights reserved.
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页码:289 / 292
页数:4
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