Superhydrophobic and superoleophobic surface by electrodeposition on magnesium alloy substrate: Wettability and corrosion inhibition.
Superamphiphobic (both superhydrophobic and superoleophobic) surfaces have attracted great interests in the fundamental research and practical application. This research successfully fabricated the superamphiphobic surfaces by combining the nickel plating process and modification with perfluorocaprylic acid. The cooperation of hierarchical micro-nano structures and perfluorocaprylic acid with low surface energy plays an important role in the formation of superamphiphobic surfaces. The contact angles of water/oil have reached up to 160.2±1°/152.4±1°, respectively. Contrast with bare substrate, the electrochemical measurements of superamphiphobic surfaces, not only the EIS measurement, but also potentiodynamic polarization curves, all revealed that, the surface corrosion inhibition was improved significantly. Moreover, superamphiphobic surfaces exhibited superior stability in the solutions with a large pH range, also could maintain excellent performance after storing for a long time in the air. This method is easy, feasible and effective, and could be used to fabricate large-area mutli-functional surface. Such a technique will develop a new approach to fabricate superamphiphobic surfaces on different engineering materials.
Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun 130022, PR China. Electronic address: liuyan2000@jlu.edu.cn.
Yan
Y
Liu
Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun 130022, PR China.
Shuyi
S
Li
Institute for Advanced Ceramics, Harbin Institute of Technology, Harbin 150001, PR China.
Yaming
Y
Wang
Key Laboratory of Automobile Materials (Ministry of Education) and College of Materials Science and Engineering, Jilin University, Changchun 130022, PR China.
Huiyuan
H
Wang
Construction Engineering College, Jilin Unversity, Changchun 130022, PR China. Electronic address: gaokenm@jlu.edu.cn.
Ke
K
Gao
Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun 130022, PR China.
Zhiwu
Z
Han
Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun 130022, PR China.
Luquan
L
Ren
Corrosion; Electrodeposition; Magnesium alloy; Superamphiphobic