Super-hydrophobic surfaces improve corrosion resistance of copper in seawater

被引：269

作者：

Liu, Tao

Yin, Yansheng ^{[1
]}

Chen, Shougang

Chang, Xueting

Cheng, Sha

机构：

[1] Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266100, Peoples R China

[2] Shandong Univ China, Coll Mat Sci & Technol, Jinan 250061, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2007年 / 52卷 / 11期

基金：

中国国家自然科学基金;

关键词：

super-hydrophobic; copper; corrosion resistance; seawater; electrochemistry;

D O I：

10.1016/j.electacta.2006.10.059

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Pretreated by a n-tetradecanoic acid (CH3(CH2)(12)COOH) etch, the super-hydrophobic film was formed on the fresh copper surface. The film structure was probed with contact angle measurement and scanning electron microscopy(SEM). The results suggest that the structure of the film is similar to haulm or flower and the seawater contact angle is larger than 150 degrees. Moreover, the corrosion resistance of bare and modified samples in seawater were investigated by cyclic voltammograms(CV) and electrochemical impedance spectroscopy(EIS). Experimental results show that the corrosion rate of Cu with super-hydrophobic surface decreases dramatically because of its special microstructure. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：3709 / 3713

页数：5

共 17 条

[1] Purity of the sacred lotus, or escape from contamination in biological surfaces [J].