Tuning F-doped degree of rGO: Restraining corrosion-promotion activity of EP/rGO nanocomposite coating

doi:10.1016/j.jmst.2019.09.043

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2020专题

	Tuning F-doped degree of rGO: Restraining corrosion-promotion activity of EP/rGO nanocomposite coating
	Shen, Lu ; Li, Yong ; Zhao, Wenjie ; Wang, Kui ; Ci, Xiaojing ; Wu, Yangmin ; Liu, Gang ; Liu, Chao ; Fang, Zhiwen
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2020
卷号	44 页码:121-132
关键词	GRAPHENE PROTECTION RESISTANCE FILMS OXIDE IRON FLUOROGRAPHENE ENHANCEMENT POLYANILINE MECHANISM
DOI	10.1016/j.jmst.2019.09.043
英文摘要	Given that graphene features high electrical conductivity, it is a kind of material with corrosion-promotion activity. This study aimed to inhibit the corrosion-promotion activity of graphene in coatings. Here, we report an exciting application of epoxy matrix (EP)/F-doped reduced graphene oxide (rGO) coatings for the long-term corrosion protection of steel. The synthesized F-doped rGO (FG) did not reduce the utilization of rGO by a wide margin and possessed distinctive electrically insulating nature. The electrical conductivity of rGO was approximately 1500 S/m, whereas those of FG-1, FG-2 and FG-3 were 1.17, 5.217 x 10(-2) and 3.643 x 10(-11) S/m, respectively. FG and rGO were then dispersed into epoxy coatings. The chemical structures of rGO and FG were investigated by transmission electron microscopy (TEM), scanning probe microscopy (SPM), X-ray photoelectron spectroscopy (XPS), Fourier-transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD). EP/FG coatings exhibited outstanding corrosion protection in comparison with blank EP and EP/rGO coatings mainly because the corrosion-promotion effect of rGO was eliminated. The anticorrosion ability of EP/FG coatings was improved with increased F-doped degree of FG. In addition, electrochemical impendance spectroscopy (EIS) results indicated that the R c values of EP/FG-2 and EP/FG3 were four orders of magnitude higher than those of EP/rGO in diluent NaCl solution (3.5 wt.%) after immersion for 90 days. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
学科主题	Materials Science ; Metallurgy & Metallurgical Engineering
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/19734]
专题	2020专题
作者单位	1.Wang, K (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Publ Technol Serv Ctr, Ningbo 315201, Peoples R China. 2.Zhao, WJ (corresponding author), Chinese Acad Sci, Zhejiang Key Lab Marine Mat & Protect Technol, Key Lab Marine Mat & Related Technol, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China.
推荐引用方式 GB/T 7714	Shen, Lu,Li, Yong,Zhao, Wenjie,et al. Tuning F-doped degree of rGO: Restraining corrosion-promotion activity of EP/rGO nanocomposite coating[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2020,44:121-132.
APA	Shen, Lu.,Li, Yong.,Zhao, Wenjie.,Wang, Kui.,Ci, Xiaojing.,...&Fang, Zhiwen.(2020).Tuning F-doped degree of rGO: Restraining corrosion-promotion activity of EP/rGO nanocomposite coating.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,44,121-132.
MLA	Shen, Lu,et al."Tuning F-doped degree of rGO: Restraining corrosion-promotion activity of EP/rGO nanocomposite coating".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 44(2020):121-132.