Abstract 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.

中文翻译：

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氧化石墨烯上Zn掺杂聚苯胺的原位合成用于环氧涂层的防腐增强

摘要 在这项研究中，通过逐层组装的方法，用聚苯胺 (PAni) 纳米纤维和锌阳离子对带负电荷的氧化石墨烯 (GO) 纳米片进行了改性。对GO、GO-PAni和GO-PAni-Zn的结构、形貌和热行为进行了表征。通过电化学阻抗谱（EIS）和极化测试证明了GO-PAni-Zn纳米复合材料的活性缓蚀性能。结果证实了GO-PAni-Zn样品的高阳离子交换能力和更好的抗腐蚀性能。从量子力学计算得出的理论结果表明，无机锌阳离子显示出与祖母绿的静电和阳离子-π 相互作用，这意味着锌倾向于与 PAni 链结合。