Abstract
Superhydrophobic coatings have attracted significant attention in the anti-corrosion protection. However, their long-term corrosion resistance is still challenging under the penetration of corrosive media. In this work, we report an one-step electrodeposition method to fabricate a cerium-based superhydrophobic (CS) coating on the surface of Al alloy. The effects of cerium ions on the morphology, roughness, anti-wettability and anti-corrosion property of the coatings were investigated in detail. The results indicated that cerium ions can effectively control the anti-wetting properties of the coating surface by regulating surface micro/nanostructure during electrodeposition process. The obtained CS coating has the best corrosion protection when the cerium ion concentration is 0.0125 mol/L, and its impedance modulus changes slightly, reaching 3.16 × 106 Ω cm2 after immersing in 3.5 wt% NaCl solution for 192 h. Notably, the CS coating could form a Ce-rich passive layer during the immersion to prevent further corrosion, exhibiting excellent long-term corrosion resistance. Consequently, cerium ions can enhance the corrosion inhibition behavior of such coating through the synergistic effect of regulating the surface micro/nanostructure and the active inhibition of cerium.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Colloids and Surfaces A: Physicochemical and Engineering Aspects
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
