The Fabrication, Characterization And Properties Of Silver-Polypyrrole Nanocomposites

Metal nanoparticles with one-dimensional, two-dimensional and three-dimensional structure had been the focus of many recent studies because of their excellent optical, electrical and catalytic properties. However, the potential applications are limited due to their uncontrollable aggregation in aqueous solution. Furthermore, metal nanoparticles are sensitive to air and moisture. Therefore, stabilizer is used to prevent the coalescence of the metal nanoparticles which can form a coating layer on their surface. A polymer envelop can protect metal nanoparticles from oxidation and corrosion, keeping good performance for a long time. And the polymer adds flexibility to the system and improves processability to a large extent. However, the conductivity of metal nanoparticles has been insulated for coating by conventional polymer materials. The electrical property of metal nanoparticles will be maintained if coated by a conducting polymer layer. At the same time, the metal nanopartilces will...