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In recent years, due to environmental and ecological concerns, electropolymerization of conductive polymers on non-noble metals has become important. In this study, adherent and homogeneous polyaniline and polypyrrole films doped with two dimensional molybdenum disulphide (2D-MoS2) were electropolymerized onto mild steel (MS) in 0.1 M H2C2O4 by cyclic voltammetry method. The coatings obtained on the MS are characterized by SEM. The corrosion performance of polypyrrole, polyaniline, polypyrrole doped with 2D-MoS2 and polyaniline doped with 2D-MoS2 film coated on MS has been measured in sulfuric acid medium by the Tafel polarization method. The polypyrrole exhibited good corrosion protection properties. The polypyrrole coating has higher corrosion performance than polyaniline and polyaniline doped with 2D-MoS2. The polypyrrole doped with 2D-MoS2 showed the best corrosion performance in those coatings. This shows that polypyrrole + 2D-MoS2 on MS has more stability and an impermeable layer against corrosion in the sulphuric acid solution.

Conductive Polymer Doped with 2D-MoS2 Coatings for the Corrosion Protection of Mild Steel

Conductive Polymer Doped with 2D-MoS₂ Coatings for the Corrosion Protection of Mild Steel