Electrochemical synthesis and corrosion behavior of poly(N-ethyl aniline) coatings on Al-2024 alloy |
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| Affiliation: | 1. Institute of Inorganic Chemistry of the AS CR, v.v.i., 250 68, Husinec-Řež 1001, Czech Republic;2. Charles University in Prague, Faculty of Mathematics and Physics, Ke Karlovu 5, 121 16 Praha 2, Czech Republic;3. Charles University in Prague, Faculty of Science, Hlavova 2030/8, 128 43 Prague 2, Czech Republic;1. Chemistry Department, King Abdulaziz University, Jeddah 21589, Saudi Arabia;2. Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, Jeddah 21589, P.O. Box 80203, Saudi Arabia;3. Research Center for Advanced Materials Science (RCAMS), King Khalid University, PO Box 9004, Abha 61413, Saudi Arabia |
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| Abstract: | Poly(N-ethyl aniline) coating was electrodeposited onto Al-2024 by using cyclic voltammetry. The coating was characterized by infrared spectroscopy, cyclic voltammetry and UV-Vis spectroscopy. The corrosion resistance of the film was evaluated by dc polarization studies. These coatings were formed in aqueous solution of oxalic acid. The concentration of monomer and oxalic acid were kept constant at 0.1 and 0.3 M, respectively. The formation of the polymer coating was monitored by cyclic voltammetry and infrared spectroscopy. Preliminary dc polarization results show that poly(N-ethyl aniline) has a corrosion rate of about 0.004 mmpy, which is significantly lower (about one order of magnitude) than that for the non-coated Al-2024. |
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