Electrochemical and spectroscopical studies of polypyrrole synthesized on carbon steel from aqueous medium

A. El Jaouhari, M. Laabd, E. A. Bazzaoui, A. Albourine, J. I. Martins, R. Wang, G. Nagy, M. Bazzaoui

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Abstract

Abstract Polypyrrole films were deposited electrochemically on carbon steel from sodium saccharinate aqueous medium using cyclic voltammetry, potentiostatic and galvanostatic techniques. X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and normalized tape test show that the polypyrrole coating is homogeneous and adherent to carbon steel surface with globular structure. The adherence rate depends closely on the applied current densities. The corrosion protection performance of the coating was investigated by potentiodynamic polarization technique, open circuit potential over time, and electrochemical impedance spectroscopy (EIS) in 3% sodium chloride solution.

Original languageEnglish
Article number15000
Pages (from-to)11-18
Number of pages8
JournalSynthetic Metals
Volume209
DOIs
Publication statusPublished - Jul 2 2015

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Keywords

  • Aqueous media
  • Carbon steel
  • Corrosion
  • Electrochemistry
  • Polypyrrole

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

El Jaouhari, A., Laabd, M., Bazzaoui, E. A., Albourine, A., Martins, J. I., Wang, R., Nagy, G., & Bazzaoui, M. (2015). Electrochemical and spectroscopical studies of polypyrrole synthesized on carbon steel from aqueous medium. Synthetic Metals, 209, 11-18. [15000]. https://doi.org/10.1016/j.synthmet.2015.06.017