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Open AccessArticle

Cu–MoS2 Superhydrophobic Coating by Composite Electrodeposition

Institute for Surface Science and Corrosion, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91052 Erlangen, Germany
Author to whom correspondence should be addressed.
Coatings 2020, 10(3), 238;
Received: 21 January 2020 / Revised: 27 February 2020 / Accepted: 2 March 2020 / Published: 4 March 2020
(This article belongs to the Section Surface Characterization, Deposition and Modification)
In this work, a superhydrophobic coating was developed by composite electrodeposition of MoS2 particles in a copper matrix. AISI 316L stainless steel and N80 carbon steel, with a thin electrodeposited Ni layer to improve adherence of the coating, were used as substrates. Different operational parameters of electrodeposition were studied in order to produce the highest possible contact angle. We demonstrate that, using this method, a coating with a hierarchical structure with feature dimensions in the range of µm to nm is obtained, with advancing contact angle values up to 158.2° and a contact angle hysteresis equal to 1.8°. To study the coating composition energy dispersive X-ray, X-ray photoelectron spectroscopy and time-of-flight secondary ion mass spectrometry were performed. Moreover, potentiodynamic polarizations were performed in H2SO4, NaCl and NaOH solutions to study the corrosion behavior of the coating. As a control, a sample coated only with MoS2 particles by means of electrophoretic deposition was produced. The results show that the composite coating can be used in applications where copper is used for corrosion protection, with the addition of the desirable effects of its superhydrophobicity. View Full-Text
Keywords: superhydrophobic; composite electrodeposition; electrophoretic deposition; corrosion; composite coating; wettability superhydrophobic; composite electrodeposition; electrophoretic deposition; corrosion; composite coating; wettability
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MDPI and ACS Style

Prado, L.H.; Virtanen, S. Cu–MoS2 Superhydrophobic Coating by Composite Electrodeposition. Coatings 2020, 10, 238.

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