期刊
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
卷 13, 期 12, 页码 12010-12023出版社
ESG
DOI: 10.20964/2018.12.48
关键词
Graphene; Phenosafranin; pi-pi interaction; Water-borne epoxy; Corrosion protection
资金
- One Hundred Talented People of the Chinese Academy of Sciences [Y60707WR04]
- Key Research Projects of Frontier Science, Chinese Academy of Sciences [QYZDY-SSW-JSC009]
- Open Financial Grant from Qingdao National Laboratory for Marine Science and Technology [QNLM2016ORP0409]
- Project of Science and Technology from State Grid Zhejiang Electric Power Company [5211NB16000F]
- Opening Project of State Key Laboratory of Explosion Science and Technology at Beijing Institute of Technology [KFJJ13-11M]
In present study, phenosafranin (PSF) was employed to achieve the dispersion of graphene in water owing to the presence of pi-pi interaction which was also confirmed from the absorption free energy calculated by first principles based on density functional theory. In addition, water-borne epoxy (WEP) coatings containing graphene, PSF and PSF@G were prepared and fabricated on the electrodes. Meanwhile, the corrosion protection performance of different coatings during the immersion in 3.5 wt% NaCl solution was investigated and compared. It could be concluded from the results that PSF@G/WEP coating presented better protective performance than other coatings since the well dispersed graphene in WEP provided superior impermeability to corrosive medium. Besides, the PSF surfactant used to disperse graphene was also beneficial to improve the protective performance of the WEP coating.
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