Room temperature synthesis of Ag/polypyrrole core-shell nanoparticles and hollow composite capsules

被引：20

作者：

Shi, Zhiquan ^{[1
]}

Wang, Hongjuan ^{[1
]}

Dai, Tingyang ^{[1
]}

Lu, Yun ^{[1
]}

机构：

[1] Nanjing Univ, Dept Polymer Sci & Engn, State Key Lab Coordinat Chem, Sch Chem & Chem Engn, Nanjing 210093, Peoples R China

来源：

SYNTHETIC METALS | 2010年 / 160卷 / 19-20期

基金：

中国国家自然科学基金;

关键词：

Ag/polypyrrole; Conducting polymers; AgCl; Hollow capsules; POLYPYRROLE COAXIAL NANOCABLES; SILVER NANOPARTICLES; SOL-GEL; POLYANILINE; NANOSPHERES; FABRICATION; NANOCOMPOSITE; CHITOSAN; PYRROLE; FILMS;

D O I：

10.1016/j.synthmet.2010.07.042

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two kinds of Ag/polypyrrole composite nanoparticles have been prepared via a one-step redox reaction between silver nitrate and pyrrole monomer at room temperature. One is Ag@polypyrrole core-shell nanoparticles that were synthesized by making use of synergic inducing effect of polyvinyl pyrrolidone and p-toluenesulfonic acid existing in aqueous solutions. The other is AgCl@Ag/polypyrrole core-shell composite nanoparticles that were synthesized in the presence of HCI using the in situ-formed AgCl particles as the template. For the latter, its core can be easily removed via a simple dissolving procedure in sodium hyposulfite or ammonium chloride aqueous solutions, obtaining the Ag/polypyrrole hollow composite capsules. Experimental results suggest that the shell thickness and core diameter of the resulting composites can be controlled expediently by adjusting reaction time and concentration of pyrrole monomer. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：2121 / 2127

页数：7

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