Journal
SYNTHETIC METALS
Volume 160, Issue 19-20, Pages 2121-2127Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.synthmet.2010.07.042
Keywords
Ag/polypyrrole; Conducting polymers; AgCl; Hollow capsules
Funding
- National Natural Science Foundation of China [20974043, 50773030]
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University [SKLSSM200903]
- Testing Foundation of Nanjing University
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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.
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