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Graphene coating for anti-corrosion and the investigation of failure mechanism
Zhu, Y. X.1,2; Duan, C. Y.1; Liu, H. Y.2; Chen, Y. F.1; Wang, Y.1

Graphene produced by chemical vapor deposition (CVD) methods has been considered as a promising corrosion prevention layer because of its exceptional structure and impermeability. However, the anti-corrosion performance and the failure mechanism are still controversial. In this study, graphene layers with different quality levels, crystallite sizes, and layer numbers were prepared on the surface of Cu by a CVD process. The effects of grain boundaries (GBs) on the failure of graphene layers to provide adequate protection were investigated in detail by combining graphene transfer techniques, computation, and anti-corrosion measurements. Our results reveal that corrosion rates decrease marginally upon the increase of graphene layer number, and this rather weak dependence on thickness likely arises from the aligned nature of the GBs in CVD-grown few-layer graphene. This problem can potentially be overcome by layer-by-layer graphene transfer technique, in which corrosion is found to be arrested locally when transferred graphene is present on top of the as-grown graphene. However, this advantage is not reflected in corrosion studies performed on large-scale samples, where cracks or imperfect interfaces could offset the advantages of GB misalignment. With improvements in technology, the layer-by-layer assembly technique could be used to develop an effective anti-corrosion barrier.

KeywordGraphene Anti-corrosion Grain Boundary Failure Mechanism
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
WOS KeywordLarge-area Synthesis ; Grain-boundaries ; Multilayer Graphene ; Raman-spectroscopy ; High-quality ; Corrosion ; Films
WOS Research AreaPhysics
WOS SubjectPhysics, Applied
Funding OrganizationNational Natural Science Foundation of China(21473209) ; Chinese Academy of Sciences (CAS) ; State Key Laboratory of Multiphase Complex Systems Open Foundation(MPCS-2013-C-01)
WOS IDWOS:000415250200001
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.China Univ Min & Technol Beijing, Sch Chem & Environm Engn, Beijing 100083, Peoples R China
Recommended Citation
GB/T 7714
Zhu, Y. X.,Duan, C. Y.,Liu, H. Y.,et al. Graphene coating for anti-corrosion and the investigation of failure mechanism[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS,2017,50(11).
APA Zhu, Y. X.,Duan, C. Y.,Liu, H. Y.,Chen, Y. F.,&Wang, Y..(2017).Graphene coating for anti-corrosion and the investigation of failure mechanism.JOURNAL OF PHYSICS D-APPLIED PHYSICS,50(11).
MLA Zhu, Y. X.,et al."Graphene coating for anti-corrosion and the investigation of failure mechanism".JOURNAL OF PHYSICS D-APPLIED PHYSICS 50.11(2017).
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