Coating of PANI/SnO2, PANI/ZnO Polymeric Nanocomposite on 304 L Stainless Steel by Galvanostatic Method and Investigation of Corrosion Behavior

DEMİREL S., Bozkurt B.

PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES, vol.58, no.1, pp.53-64, 2022 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 58 Issue: 1
  • Publication Date: 2022
  • Doi Number: 10.1134/s207020512201021x
  • Journal Name: PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Compendex, INSPEC, Metadex
  • Page Numbers: pp.53-64
  • Keywords: galvanostatic coating, PANI, polymeric nano composite, corrosion, MILD-STEEL, ANTICORROSIVE PROPERTIES, CONDUCTING POLYMERS, POLYANILINE, PROTECTION, PERFORMANCE
  • Kocaeli University Affiliated: Yes

Abstract

In this study, Polyaniline (PANI) and Polianiline/nano metal oxide (SnO2, ZnO (0.1, 0.3 and 0.5 wt %)) are coated on the surface of the steel electrode by galvanostatic method. PANI, PANI/SnO2 and PANI/ZnO coatings were obtained at constant current 50 mA and 1200 s. Characterization of galvanostatically obtained coatings was carried out by FT-IR spectroscopy, XRD and SEM. The effectiveness of PANI, PANI/SnO2 and PANI/ZnO nanocomposite coating in preventing steel corrosion was investigated in 3% NaCl solution using the potentiodynamic polarization technique and electrochemical impedance spectroscopy. The experimental results indicate that as the amount of nanometal oxide (SnO2, ZnO) in the polymer matrix increases, the steel corrosion is reduced.