IOCAS-IR  > 海洋环境腐蚀与与生物污损重点实验室
A Brief Communication on the Improved Mechanism of Graphene on Zinc-Rich Coatings
Wang, Xiao1; Chen, Si2; Ding, Rui3,4,5; Zhou, Nan5; Zheng, Yan5; Yu, Hai-bin5; Li, Bin-jun3; Gui, Tai-jiang1; Li, Wei-hua2,4
2019-04-01
Source PublicationINTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
ISSN1452-3981
Volume14Issue:4Pages:3553-3567
Corresponding AuthorDing, Rui(dmoyuyang@foxmail.com) ; Li, Wei-hua(liweihua@qdio.ac.cn)
AbstractGallic 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.
KeywordCorrosion Graphene Zinc-rich coatings Electrochemistry
DOI10.20964/2019.04.26
Indexed BySCI
Language英语
Funding ProjectChina 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 Research AreaElectrochemistry
WOS SubjectElectrochemistry
WOS IDWOS:000464109600033
PublisherESG
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/161156
Collection海洋环境腐蚀与与生物污损重点实验室
Corresponding AuthorDing, Rui; Li, Wei-hua
Affiliation1.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
Corresponding Author AffilicationKey Laboratory of Marine Environmental Corrosion and Bio-fouling, IOCAS
Recommended Citation
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.
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