Please use this identifier to cite or link to this item: https://dspace.ctu.edu.vn/jspui/handle/123456789/109058
Title: Properties and corrosion protection of polypyrrole prepared by electrochemical polymerization on aluminum
Authors: Le, Van Khoe
Ha, Manh Hung
Le, Minh Duc
Ngo, Xuan Luong
Nguyen, Thi Bich Viet
Vu, Thi Huong
Doan, Thi Yen Oanh
Vu, Quoc Trung
Keywords: 3-nitrosalicylic acid
Aluminum
Corrosion protection
Polypyrrole
Self-healing
Issue Date: 2024
Series/Report no.: Vietnam journal of Chemitry;Vol.62, Iss.03 .- P.412-420
Abstract: In a one-step procedure that did not require any surface preparation, polypyrrole (PPy) films doped with 3-nitrosalicylic acid (3Nisa) became effectively electropoly- merized on the aluminum substrate in aqueous solutions. Fourier transform infrared, scanning electron microscopy, and thermal gravimetric analysis were used to analyze the properties of PPy-based films. Open circuit potential (OCP), electrochemical impedance spectroscopy, Tafel polarization, and salt spray tests were used to study the corrosion-resistant efficiency of the coatings. The asprepared PPy films performed corrosion resistance on aluminum in the 3% NaCl solution. However, the PPy films prepared in the 0.01 M solution of 3Nisa showed the best protection ability on aluminum. The selfhealing characteristic of the PPy films was recorded by varying the potential in the OCP measurement. The findings indicate the potential of using 3-nitrosalicylic aciddoped PPy films for applications as anti-corrosion coatings for aluminum.
URI: https://dspace.ctu.edu.vn/jspui/handle/123456789/109058
ISSN: 2525-2321
Appears in Collections:Vietnam Journal of Chemistry

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