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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
2017-03-22
发表期刊JOURNAL OF PHYSICS D-APPLIED PHYSICS
ISSN0022-3727
卷号50期号:11
摘要

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.

关键词Graphene Anti-corrosion Grain Boundary Failure Mechanism
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1088/1361-6463/aa5bb0
收录类别SCI
语种英语
关键词[WOS]Large-area Synthesis ; Grain-boundaries ; Multilayer Graphene ; Raman-spectroscopy ; High-quality ; Corrosion ; Films
WOS研究方向Physics
WOS类目Physics, Applied
项目资助者National 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记录号WOS:000415250200001
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/23375
专题多相复杂系统国家重点实验室
作者单位1.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
推荐引用方式
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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