Polyaniline has been electrodeposited on an AA 7075 alloy by a potentiostatic method, and its corrosion protection ability has been 
studied by Tafel polarization and electrochemical impedance spectroscopic techniques in 1% NaCl. A pure polyaniline film 
protects the aluminum alloy up to 70%. However, the corrosion resistance property of the polyaniline film has substantially 
increased to 90% by post-treatment in a cerium salt solution. X-ray photoelectron spectra studies have shown that the film formed 
due to the post-treatment of polyaniline with the AA 7075 alloy in the cerium salt solution is composed of both Ce3+ and Ce4+ 
oxides.

Polyaniline film electrodeposited on AA 7075 alloy significantly increases its corrosion resistance to 90% when post-treated in a cerium salt solution.

Electrosynthesis of Polyaniline Film on AA 7075 Alloy and Its Corrosion Protection Ability

Key Takeaway: Polyaniline film electrodeposited on AA 7075 alloy significantly increases its corrosion resistance to 90% when post-treated in a cerium salt solution.