Title of article :
A Brief Study on Electrochemical Properties of Polypyrrole/Nano-SiO2
Author/Authors :
Khalili, Mohammad Sajjad Department of Chemistry - Faculty of Sceince and Engineering - Islamic Azad University - Saveh Branch, Saveh , Hajmalek, Monireh Department of Chemistry - Islamic Azad University - Science and Reaserch Branch, Tehran , Zabihi, Omid Department of Chemistry - Islamic Azad University - Science and Reaserch Branch, Tehran
Abstract :
An attempt has been made to investigate the effect of SiO2 nanoparticles on the conductivity of polypyrrole conducting
polymeric films prepared by an electrochemical method. The obtained nanocomposites were characterized by FTIR,
cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and scanning electron microscopy (SEM).
The results indicate that the conductivity of the nanocomposite was significantly increased in comparison to pure
polypyrrole. Fitting the impedance results to an equivalent circuit reveals that addition of SiO2 nanoparticles reduces
the ohmic resistance due to the better conductivity.
Keywords :
Electrochemical properties , Polypyrrole nanocomposite , SiO2 nanoparticles
Journal title :
Astroparticle Physics
