Table of Contents
Journal of Nanoparticles
Volume 2015, Article ID 149406, 6 pages
http://dx.doi.org/10.1155/2015/149406
Research Article

Novel Electrochemical Synthesis of Polypyrrole/Ag Nanocomposite and Its Electrocatalytic Performance towards Hydrogen Peroxide Reduction

1Fuel Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
2Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India

Received 2 June 2015; Accepted 19 August 2015

Academic Editor: Raphael Schneider

Copyright © 2015 Ruma Gupta et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A simple electrochemical method of synthesis of polypyrrole/silver (PPy/Ag) nanocomposite is presented. The method is based on potentiodynamic polymerization of pyrrole followed by electrodeposition of silver employing a single potentiostatic pulse. The synthesized PPy film has embedded Ag nanocubes. The morphology and structure of the resulting nanocomposite were characterized by field emission scanning electron microscopy and X-ray diffraction. Electron paramagnetic resonance studies showed that silver nanoparticle deposition on polypyrrole leads to an increase in carrier density, indicative of enhanced conductivity of the resulting composite. Electrocatalytic performance of the prepared composite was examined for reduction of hydrogen peroxide and was compared with corresponding PPy film and bare glassy carbon electrode.