Effective electrodeposition of poly(3,4-ethylenedioxythiophene)-based organic coating on metallic food packaging for active corrosion protection

El Guerraf A., Ben Jadi S., Aouzal Z., Bouabdallaoui M., Bakirhan N. K., ÖZKAN S. A., ...More

JOURNAL OF APPLIED ELECTROCHEMISTRY, vol.52, no.9, pp.1383-1407, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 52 Issue: 9
  • Publication Date: 2022
  • Doi Number: 10.1007/s10800-022-01710-0
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Aquatic Science & Fisheries Abstracts (ASFA), Chemical Abstracts Core, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.1383-1407
  • Keywords: Electrodeposition, PEDOT coating, Food packaging, Spectroscopic and microscopic characterization, Surface wettability, Anti-corrosion performance, SODIUM DODECYL-SULFATE, ELECTROCHEMICAL SYNTHESIS, POLYPYRROLE COATINGS, TINPLATE CANS, MILD-STEEL, ALUMINUM, PEDOT, FILMS, ELECTROSYNTHESIS, RESISTANCE
  • Ankara University Affiliated: Yes


Modern technologies continuously need special materials with specific properties to adopt the desired application. Recently, numerous researches have been dedicated to the development of new food packaging materials that can ensure optimum protection of the packaged product. In this context, conducting polymers-based coatings were considered promising materials to be used as contact compounds in the packaging industries. Poly(3, 4-ethylenedioxythiophene) (PEDOT) films were electrochemically synthesized on two different metallic food packaging substrates, namely, tinplate and aluminum. The electrosynthesis was achieved in two electrolytic media using cyclic voltammetry, chronoamperometry, and chronopotentiometry. The elaborated coatings were then subjected to several microscopic and spectroscopic analyses. The characterization allowed a detailed description of the morphology and the chemical composition of PEDOT coatings and confirms the electrochemical modification of the metals. Besides, the surface wettability was examined as it has a great interest in the present work since the packaged product can be in direct contact with the metallic food container which, depending on its wettability, can be a site of corrosion. Afterward, the corrosion performances of the elaborated coatings were investigated over time in 3% sodium chloride solution by open circuit potential (OCP), potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS). The results clearly showed that PEDOT films can serve as a stable matrix on tinplate and aluminum against corrosion.