Journal
ADVANCED ENGINEERING MATERIALS
Volume 17, Issue 7, Pages 961-968Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adem.201500046
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Funding
- National Natural Science Foundation of China [21273016]
- National Basic Research Program of China [2013CB933003]
- Program for New Century Excellent Talents in University
- Beijing Higher Education Young Elite Teacher Project
- Key Research Program of the Chinese Academy of Sciences [KJZDEW-M01]
- Fundamental Research Funds for the Central Universities
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Learning from nature will give us some important inspiration in designing multifunctional materials and in developing new technology. Self-propelled motion is ubiquitous in nature. Special wetting surfaces have considerable technological potential for various applications arising from their extreme repellent properties toward liquids. Here, we reported the spontaneous anti-condensation on low adhesive superamphiphobic engineered Al surfaces. The mechanism of anti-condensation was also investigated in this work. The dropwise condensation on engineering metals was removed autonomously without any external forces arising from the out-of-plane jumping motion of the coalesced drops. The self-propelled jumping motion of merged drops is driven by the surface energy released upon drop coalescence. Besides the anti-condensation, the resultant Al surfaces also showed robust repellency toward various polar, nonpolar liquids and even corrosive liquids, demonstrating stable superamphiphobicity, anti-corrosion, and self-cleaning properties. This will extend the practical applications of engineering metals in the fields of anti-icing and heat exchange.
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