Rapid synthesis of inherently robust and stable superhydrophobic carbon soot coatings

Rapid synthesis of inherently robust and stable superhydrophobic carbon soot coatings Article history: The fabrication of superhydrophobic coatings using a candle flame or rapeseed oil has become very Received 6 October 2015 attractive as a novel approach for synthesis of water repellent surfaces. Here, we report an improved, Received in revised form 2 February 2016 simplified and time-efficient method for the preparation of robust superhydrophobic carbon soot that Accepted 7 February 2016 does not require any additional stabilizers or chemical treatment. The soot’s inherent stabilization is Available online 9 February 2016 achieved using a specially-designed cone-shaped aluminum chimney, mounted over an ignited paper- based wick immersed in a rapeseed oil. Such configuration decreases the level of oxygen during the Keywords: process of combustion; altering the ratio of chemical bonds in the soot. As a result, the fractal-like net- Superhydrophobicity work of the carbon nanoparticles is converted into dense and fused carbon chains, rigidly coupled to Carbon soot the substrate surface. The modified carbon coating shows thermal sustainability and retains superhy- Rapeseed oil ◦ ◦ drophobicity up to ∼300 C. Furthermore, it demonstrates a low contact angle hysteresis of 0.7–1.2 Cone-shaped chimney accompanied by enhanced surface adhesion and mechanical durability under random water flows. In addition, the soot’s deposition rate of http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Surface Science Elsevier

Rapid synthesis of inherently robust and stable superhydrophobic carbon soot coatings

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Publisher
Elsevier
Copyright
Copyright © 2016 Elsevier B.V.
ISSN
0169-4332
eISSN
1873-5584
D.O.I.
10.1016/j.apsusc.2016.02.089
Publisher site
See Article on Publisher Site

Abstract

Article history: The fabrication of superhydrophobic coatings using a candle flame or rapeseed oil has become very Received 6 October 2015 attractive as a novel approach for synthesis of water repellent surfaces. Here, we report an improved, Received in revised form 2 February 2016 simplified and time-efficient method for the preparation of robust superhydrophobic carbon soot that Accepted 7 February 2016 does not require any additional stabilizers or chemical treatment. The soot’s inherent stabilization is Available online 9 February 2016 achieved using a specially-designed cone-shaped aluminum chimney, mounted over an ignited paper- based wick immersed in a rapeseed oil. Such configuration decreases the level of oxygen during the Keywords: process of combustion; altering the ratio of chemical bonds in the soot. As a result, the fractal-like net- Superhydrophobicity work of the carbon nanoparticles is converted into dense and fused carbon chains, rigidly coupled to Carbon soot the substrate surface. The modified carbon coating shows thermal sustainability and retains superhy- Rapeseed oil ◦ ◦ drophobicity up to ∼300 C. Furthermore, it demonstrates a low contact angle hysteresis of 0.7–1.2 Cone-shaped chimney accompanied by enhanced surface adhesion and mechanical durability under random water flows. In addition, the soot’s deposition rate of

Journal

Applied Surface ScienceElsevier

Published: Apr 30, 2016

References

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