期刊
SYNTHETIC METALS
卷 200, 期 -, 页码 16-23出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.synthmet.2014.12.024
关键词
Anti-corrosion coating; Hybrid protective coating; Large-area CVD graphene; Polypyrrole (PPy); Electrochemical tests; UV radiation exposure
资金
- Estonian Ministry of Education and Research [IUT2-24]
- Estonian Centre of Excellence [TK117]
- European Social Fund [MTT1]
- European Regional Development Fund [3.2.1101.12-0026]
New corrosion-resistant hybrid coatings based on graphene and polypyrrole were prepared and studied. A two-step process was used to fabricate the coatings. First, graphene was grown on a commercial copper foil by chemical vapor deposition (CVD) method. As the coating consisting only from graphene was imperfect, the defects were sealed with polypyrrole using electrodeposition. Corrosion resistance of copper, copper with CVD-graphene coating, and copper with CVD-graphene/polypyrrole hybrid coating were tested by immersion in salt water and also studied by open circuit potential measurements of the samples under ultraviolet radiation exposure, linear sweep voltammetry and cyclic voltammetry. The surfaces of the samples were also characterized by different microscopy and Raman spectroscopy methods. Although CVD graphene protected copper against corrosion in a certain extent, immersion tests revealed that the metal corrosion is mainly due to the graphene defects. The hybrid coatings showed much better anticorrosion performance. (C) 2014 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据