A Brief Communication on the Improved Mechanism of Graphene on Zinc-Rich Coatings

doi:10.20964/2019.04.26

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋腐蚀与防护研究发展中心

	A Brief Communication on the Improved Mechanism of Graphene on Zinc-Rich Coatings
	Wang, Xiao 1; Chen, Si 2; Ding, Rui 3,4,5; Zhou, Nan 5; Zheng, Yan 5; Yu, Hai-bin 5; Li, Bin-jun 3; Gui, Tai-jiang 1; Li, Wei-hua 2,4
刊名	INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
	2019-04-01
卷号	14 期号:4 页码:3553-3567
关键词	Corrosion Graphene Zinc-rich coatings Electrochemistry
ISSN号	1452-3981
DOI	10.20964/2019.04.26
通讯作者	Ding, Rui(dmoyuyang@foxmail.com) ; Li, Wei-hua(liweihua@qdio.ac.cn)
英文摘要	Gallic acid-based epoxy resin monomer was synthesized by the natural extract of gallnut for the efficient dispersion of graphene in epoxy resin. The graphene zinc-rich anticorrosion coatings were further prepared on the basis of the graphene / gallic acid-based epoxy resin monomer dispersion system. Electrochemical experiments and spectral characterization were carried out to study the effect of graphene on zinc-rich coatings and its mechanism. Experiments showed that graphene enhanced the cathodic protection currents of the zinc-rich coatings and prolonged the cathodic protection time. Simultaneously, graphene slowed down the penetration of corrosive media into the coatings. The conductivity of graphene improved electrical contact between zinc particles as well as zinc and iron, and transformed un-activated zinc particles into activated zinc particles. The dispersed and layered structure of the graphene extended the permeation path of the corrosive medium, which resulted in reduced permeation rate and decreased water content of the coatings. It was demonstrated by the tracking of zinc corrosion products by micro-area Raman spectroscopy.
资助项目	China Postdoctoral Science Fund[2018M632726] ; Open Research Fund of State Key Laboratory for Marine Coatings[20180501DR] ; Ningbo major scientific and technological projects[Y60309DD03] ; National program of Qingdao national laboratory for marine science and technology[2017ASTCP-O509] ; Qingdao Independent Innovation Special Project[16-7-1-2-ZDZXX]
WOS研究方向	Electrochemistry
语种	英语
出版者	ESG
WOS记录号	WOS:000464109600033
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/161155]
专题	海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者	Ding, Rui; Li, Wei-hua
作者单位	1.Marine Chem Res Inst, State Key Lab Marine Coatings, Qingdao 266071, Shandong, Peoples R China 2.Sun Yat Sen Univ, Coll Chem Engn & Technol, Zhuhai 519082, Peoples R China 3.Yantai Univ, Coll Oceanol, Yantai 264005, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Shandong, Peoples R China 5.Chinese Acad Sci, Key Lab Marine Mat & Related Technol, Zhejiang Key Lab Marine Mat & Protect Technol, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xiao,Chen, Si,Ding, Rui,et al. A Brief Communication on the Improved Mechanism of Graphene on Zinc-Rich Coatings[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2019,14(4):3553-3567.
APA	Wang, Xiao.,Chen, Si.,Ding, Rui.,Zhou, Nan.,Zheng, Yan.,...&Li, Wei-hua.(2019).A Brief Communication on the Improved Mechanism of Graphene on Zinc-Rich Coatings.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,14(4),3553-3567.
MLA	Wang, Xiao,et al."A Brief Communication on the Improved Mechanism of Graphene on Zinc-Rich Coatings".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 14.4(2019):3553-3567.