Synthesized PANI/CeO₂ Nanocomposite Films for Enhanced Anti-Corrosion Performance

This study introduces a novel nanocomposite coating composed of PANI/CeO₂ nanocomposite films, aimed at addressing corrosion protection needs. Analysis through FTIR spectra and XRD patterns confirms the successful formation of the nanocomposite films. Notably, the PANI/CeO₂ nanocomposite films exhibit a hydrophilic nature. The bandgap energy of the PANI composite film is measured to be 3.74 eV, while the introduction of CeO₂ NPs into the PANI matrix reduces the bandgap energy to 3.67 eV. Furthermore, the electrical conductivity of the PANI composite film is observed to be 0.40 S·cm^-1, with the incorporation of CeO₂ NPs leading to an increase in electrical conductivity to 1.07 S·cm^-1. To evaluate its efficacy, electrochemical measurements were conducted to assess the corrosion protection performance. Results indicate a high protection efficiency of 92.25% for the PANI/CeO₂ nanocomposite film.