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Fabrication of super-hydrophobic nickel film on copper substrate with improved corrosion inhibition by electrodeposition process
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Yang, Zhen, Liu, Xianping and Tian, Yanling (2019) Fabrication of super-hydrophobic nickel film on copper substrate with improved corrosion inhibition by electrodeposition process. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 560 . pp. 205-212. doi:10.1016/j.colsurfa.2018.10.024 ISSN 0927-7757.
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WRAP-fabrication-super-hydrophobic-nickel-copper-substrate-inhibition-electrodeposition-Tian-2018.pdf - Accepted Version - Requires a PDF viewer. Download (1479Kb) | Preview |
Official URL: http://dx.doi.org/10.1016/j.colsurfa.2018.10.024
Abstract
Inspired by the famous “lotus effect”, we have fabricated the super-hydrophobic surfaces with nickel film on copper substrates using a one-step electrodeposition method. By adjusting processing time, water contact angle of as-prepared surfaces can reach as high as 160.3 ± 1.5° with small rolling angle of 3.0 ± 0.5°, showing excellent super-hydrophobicity. After the deposition of nickel coating, the pristine copper surfaces became much rough with packed cauliflower-/thorn-like clusters. This unique surface texture contributed to trapping large amount of air and forming the air cushion underneath the water droplet, which can prevent the liquids contacting the copper substrate. The examination of surface chemical compositions implied that the deposited super-hydrophobic coating consisted of nickel crystals and nickel myristate. In this research, the formation mechanism of the electrodeposited super-hydrophobicity was extensively explained based on the analyses of surface texture and surface chemistry. Moreover, the corrosion resistance of the as-fabricated super-hydrophobic surface was estimated by the potentiodynamic polarization tests as well as the electrochemical impedance spectroscopy (EIS) measurements. The results demonstrate that the super-hydrophobic nickel coating showed excellent corrosion inhibition in simulated seawater solution. The existence of the super-hydrophobic coating could be regarded as a barrier and thus provide a perfect air-liquid interface that inhibits the penetration of the corrosive ions. This facile and effective method of electrodeposition process offers a promising approach for mass production of super-hydrophobic surfaces on various metals.
| Item Type: | Journal Article | |||||||||||||||||||||
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| Subjects: | Q Science > QD Chemistry T Technology > TS Manufactures |
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| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | |||||||||||||||||||||
| Library of Congress Subject Headings (LCSH): | Hydrophobic surfaces, Electroplating, Nickel films, Copper, Corrosion resistant materials | |||||||||||||||||||||
| Journal or Publication Title: | Colloids and Surfaces A: Physicochemical and Engineering Aspects | |||||||||||||||||||||
| Publisher: | Elsevier BV | |||||||||||||||||||||
| ISSN: | 0927-7757 | |||||||||||||||||||||
| Official Date: | 5 January 2019 | |||||||||||||||||||||
| Dates: |
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| Volume: | 560 | |||||||||||||||||||||
| Page Range: | pp. 205-212 | |||||||||||||||||||||
| DOI: | 10.1016/j.colsurfa.2018.10.024 | |||||||||||||||||||||
| Status: | Peer Reviewed | |||||||||||||||||||||
| Publication Status: | Published | |||||||||||||||||||||
| Access rights to Published version: | Restricted or Subscription Access | |||||||||||||||||||||
| Date of first compliant deposit: | 29 October 2018 | |||||||||||||||||||||
| Date of first compliant Open Access: | 9 October 2019 | |||||||||||||||||||||
| RIOXX Funder/Project Grant: |
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