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Open AccessArticle

Corrosion Resistance and Durability of Superhydrophobic Copper Surface in Corrosive NaCl Aqueous Solution

Department of Mechanical Engineering, Lamar University, Beaumont, TX 77710, USA
Department of Biology, Lamar University, Beaumont, TX 77710, USA
Department of Chemistry and Biochemistry, Lamar University, Beaumont, TX 77710, USA
Transportation and Hydrogen Systems Center, National Renewable Energy Laboratory, Golden, CO 80401, USA
Author to whom correspondence should be addressed.
Coatings 2018, 8(2), 70;
Received: 20 December 2017 / Revised: 8 February 2018 / Accepted: 9 February 2018 / Published: 11 February 2018
(This article belongs to the Special Issue Superhydrophobic Coatings)
PDF [3944 KB, uploaded 11 February 2018]


Artificial superhydrophobic copper surfaces play an important role in modern applications such as self-cleaning and dropwise condensation; however, corrosion resistance and durability often present as major concerns in such applications. In this study, the anti-corrosion properties and mechanical durability of superhydrophobic copper surface have been investigated. The superhydrophobic copper surfaces were achieved with wet chemical etching and an immersion method to reduce the complexity of the fabrication process. The surface structures and materials were characterized using scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDX), and Fourier transform infrared spectrometer (FTIR). The corrosion resistance and mechanical properties of the superhydrophobic copper surface were characterized after immersing surfaces in a 3.5 wt % NaCl solution. The chemical stability of the superhydrophobic copper surface in the NaCl solution for a short period of time was also evaluated. An abrasion test and an ultrasound oscillation were conducted to confirm that the copper surface contained durable superhydrophobic properties. In addition, an atomic force microscope was employed to study the surface mechanical property in the corrosion conditions. The present study shows that the resulting superhydrophobic copper surface exhibit enhanced corrosion resistance and durability. View Full-Text
Keywords: superhydrophobic copper surface; anti-corrosion; durability; AFM superhydrophobic copper surface; anti-corrosion; durability; AFM

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Yao, C.-W.; Sebastian, D.; Lian, I.; Günaydın-Şen, Ö.; Clarke, R.; Clayton, K.; Chen, C.-Y.; Kharel, K.; Chen, Y.; Li, Q. Corrosion Resistance and Durability of Superhydrophobic Copper Surface in Corrosive NaCl Aqueous Solution. Coatings 2018, 8, 70.

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