期刊
MICROELECTRONIC ENGINEERING
卷 141, 期 -, 页码 238-242出版社
ELSEVIER
DOI: 10.1016/j.mee.2015.03.048
关键词
Aluminum; Superhydrophobic; High-field anodization; Contact angle; Corrosion resistance
资金
- National Basic Research Program of China [2012CB934100]
- National Science Foundation of China [61474034]
- Natural Science Foundation of Heilongjiang Province of China [F201418]
- Fundamental Research Funds for the Central Universities [HIT.NSRIF.2014040, HIT.NSRIF.2013040]
This work reports a simple method to fabricate superhydrophobic surfaces on aluminum foil via highfield electrochemical anodization in oxalic acid aqueous solution. Different morphologies of these superhydrophobic surfaces can be obtained by adjusting anodization time and current. These surfaces reveal remarkable superhydrophobicity after the modification of fluorinated silane solution. The maximum contact angle (CA), 163 degrees +/- 2 degrees, can be easily obtained by this simple method. And the sliding angle (SA) is less than 2 degrees. The superhydrophobic surface shows a long-term stability over a wide pH range. The corrosion current density of the superhydrophobic aluminum is reduced by about one order of magnitude compared to the untreated aluminum. This fabricated superhydrophobic surface has a promising application in anti-corrosion fields. (C) 2015 Elsevier B.V. All rights reserved.
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