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Niloufar Notghi Taheri,Bahram Ramezanzadeh,Mohammad Mahdavian,Ghasem Bahlakeh 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.63 No.-
In this study, the negatively charged graphene oxide (GO) nanosheets were modified with polyaniline (PAni) nanofibers and zinc cations through a layer-by-layer assembly method. The structure, morphology and thermal behavior of GO, GO-PAni and GO-PAni-Zn were characterized. The active corrosion inhibition performance of GO-PAni-Zn nanocomposite was demonstrated by electrochemical impedance spectroscopy (EIS) and polarization tests. The results confirmed high cation exchange capability and better anti-corrosion properties of GO-PAni-Zn sample than others. The theoretical outcomes derived from quantum mechanics computations revealed that inorganic zinc cations demonstrated electrostatic and cation-π interactions with emeraldine, implying the zinc propensity to bind to PAni Chains.