In this study, Corrosion resistance of the coatings
obtained by electrochemical oxidation of pyrrole and aniline on the mild steel
has been investigated in 0.1 M hydrochloric acid medium. It was aimed to
increase the resistance of the coatings to corrosion by adding MoS2
to the coating solutions while covering the Polypyrrole (PPy) and polyaniline
(PANI). PPy, PAN, MoS2 doped PPy and MoS2 doped PANI
coatings on the electrodes produced from mild steel were obtained by the Cyclic
Voltammetry method in 0,1 M H2C2O4
environment. The voltamograms were carried out at a scan rate 100 V / s from
0.0 V to 1.0 V with 15 scans. The corrosion resistance of the coatings in 0.1 M
HCl medium was determined by Tafel Polarization method. Best results were
determined in MoS2 doped PPy coatings. Later, PPy coatings, MoS2
added PAN coatings and PANI coatings were determined respectively. The addition
of MoS2 to the coating solution increased the corrosion resistance
in both coatings. Similar results were obtained in different environments in our
previous studies. It is understood that MoS2 additive makes the
coating surface impermeable and prevents deformation in the coating.
Primary Language | English |
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Subjects | Electrochemistry, Chemical Engineering |
Journal Section | Articles |
Authors | |
Publication Date | February 15, 2020 |
Submission Date | December 15, 2018 |
Acceptance Date | November 21, 2019 |
Published in Issue | Year 2020 |