Synthesis of Gold Nanoparticles Attached to Polypyrrole Nanofibers

Sunil K. Pillalamarri
Frank D. Blum, Missouri University of Science and Technology
Massimo F. Bertino, Missouri University of Science and Technology

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Polypyrrole is a frequently studied conducting polymer due to its application in sensing and catalysis.1 Polypyrrole is considered among the most promising conductive polymers due to its stability and ease of conversion between conducting and insulating forms.2 Different chemical and electrochemical methods are generally used in the synthesis of polypyrrole.2 Despite many interesting applications, the use of polypyrrole is limited because of difficulty in processing it. Several approaches have been explored to improve the ability to process polypyrrole, including the use of emulsion, inverse emulsion, steric stabilizer, and microemulsion methods.1 Several reports have also been published on the synthesis of polypyrrole-metal nanocomposites.3 the sensing and catalytic abilities of the polypyrrole composites are significantly better than those for polymer alone.4 as most of the important properties of the noble metals depend on their dispersion and surface properties in the surrounding medium, it is important to obtain evenly distributed Au nanoparticles in conducting polymer matrix. Here we report a simple and convenient procedure for the synthesis of polypyrrole and gold composites, where both polymer and metal morphologies can be controlled in a single set-up.