Synthesized PANI/CeO 2 Nanocomposite Films for Enhanced Anti-Corrosion Performance.

This study introduces a novel nanocomposite coating composed of PANI/CeO 2 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/CeO 2 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 CeO 2 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 CeO 2 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/CeO 2 nanocomposite film.