Journal
APPLIED SURFACE SCIENCE
Volume 258, Issue 20, Pages 8253-8257Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2012.05.032
Keywords
Aluminum foils; Superhydrophobicity; Nanostructures; Condensation
Categories
Funding
- National Natural Science Foundation of China [51101035, 51106023]
- Natural Science Foundation of Jiangsu Province [BK2011255]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20110092120066]
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Superhydrophobic alumina films with a 2D close-packed array of nanospheres have been successfully fabricated on industrial aluminum foils by a simple anodization method and following modification. The water contact angle of the resultant surfaces is about 154.6 degrees +/- 1.4 degrees and the adhesion of water droplets is very weak. Moreover, spherical droplets grow sparsely on the as-prepared superhydrophobic foils during cooling and can be liquid without ice formation for more than 30 min after being continuously cooled to 0 degrees C. Such foils have significant application prospects in high-efficient heat exchangers and products operating under low temperature. (C) 2012 Elsevier B.V. All rights reserved.
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