화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.63, 322-339, July, 2018
DOI10.1016/j.jiec.2018.02.033  Export Citation
In-situ synthesis of Zn doped polyaniline on graphene oxide for inhibition of mild steel corrosion in 3.5 wt.% chloride solution
Niloufar Notghi Taheri, Bahram Ramezanzadeh†, Mohammad Mahdavian, and Ghasem Bahlakeh1
  • Surface Coating and Corrosion Department, Institute for Color Science and Technology, Tehran, Iran
  • 1Department of Engineering and Technology, Golestan University, Aliabad Katool, Iran
E-mail:
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-p interactions with emeraldine, implying the zinc propensity to bind to PAni Chains.
Keywords:Layer-by-layer assembly;Graphene oxide nanosheets;Polyaniline nanofibers;Anti-corrosion;EIS
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