A Simple Two-Phase Route to Silver Nanoparticles/Polyaniline Structures

Novel silver nanoparticles/polyaniline composites were obtained through a two-phase water/toluene interfacial reaction. We show that by rigorously controlling the reaction time, different structures of the nanocomposites can be obtained, such as a thin sheet of polyaniline around the silver nanopart...

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Bibliographic Details
Published in:The journal of physical chemistry. B 2006-08, Vol.110 (34), p.17063-17069
Main Authors: Oliveira, Marcela M, Castro, Eryza G, Canestraro, Carla D, Zanchet, Daniela, Ugarte, Daniel, Roman, Lucimara S, Zarbin, Aldo J. G
Format: Article
Language:English
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Summary:Novel silver nanoparticles/polyaniline composites were obtained through a two-phase water/toluene interfacial reaction. We show that by rigorously controlling the reaction time, different structures of the nanocomposites can be obtained, such as a thin sheet of polyaniline around the silver nanoparticles or a polymer mass with nanoparticles homogeneously embedded within it. Samples were characterized by FT-IR, UV−vis−NIR and Raman spectroscopy, X-ray diffraction, cyclic voltammetry, TEM, and HRTEM. Conductivity and current−voltage characteristics of the nanocomposites were measured, and the results indicate that different properties result from the different structures in which the nanocomposites were formed.
ISSN:1520-6106
1520-5207
DOI:10.1021/jp060861f