中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Graphene coating for anti-corrosion and the investigation of failure mechanism

文献类型:期刊论文

作者Zhu, Y. X.1,2; Duan, C. Y.1; Liu, H. Y.2; Chen, Y. F.1; Wang, Y.1
刊名JOURNAL OF PHYSICS D-APPLIED PHYSICS
出版日期2017-03-22
卷号50期号:11
关键词Graphene Anti-corrosion Grain Boundary Failure Mechanism
ISSN号0022-3727
DOI10.1088/1361-6463/aa5bb0
文献子类Article
英文摘要

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.

WOS关键词Large-area Synthesis ; Grain-boundaries ; Multilayer Graphene ; Raman-spectroscopy ; High-quality ; Corrosion ; Films
WOS研究方向Physics
语种英语
WOS记录号WOS:000415250200001
资助机构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)
源URL[http://ir.ipe.ac.cn/handle/122111/23375]  
专题过程工程研究所_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).

入库方式: OAI收割

来源:过程工程研究所

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