A study of corrosion on electrodeposited superhydrophobic copper surfaces

• Published in: Corrosion science Vol. 186; no. C; p. 109420
• Main Authors: Mousavi, S.M.A, Pitchumani, R.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier Ltd 01-07-2021; Elsevier BV; Elsevier
• Subjects: Acidic and basic solution; Copper; Corrosion; Corrosion resistance; Corrosion tests; Electrodeposition; Hydrophobic surfaces; Hydrophobicity; Salt solution; Substrates; Superhydrophobicity; Electrodeposition; Salt solution; Acidic and basic solution; Corrosion; Superhydrophobicity; Copper
• ISSN: 0010-938X; 1879-0496
• DOI: 10.1016/j.corsci.2021.109420

•Presents a facile, low energy, electrodepostion method for fabrication of copper-based superhydrophobic surfaces.•Presents, for the first time, a systematic study on the effect of surface functionalization time.•Presents the corrosion inhibition characteristics of superhydrophobic surfaces in a wide range of corrosive environments.•Reports corrosion resistance of superhydrophobic copper surfaces, for the first time, as a function of temperature.•Presents a study of corrosion durability of the surfaces under long-term immersion in the corrosive environments.
This study considers the corrosion characteristics of superhydrophobic copper surfaces with multiscale asperities formed inherently on a copper substrate, using a facile, low energy, electrodepostion method. A systematic study is presented for the first time on the effect of surface functionalization time on long-term immersion in a wide range of corrosive environments from the extremely acidic to the extremely alkaline. The corrosion resistance is also reported for the first time as a function of temperature in the range 23–85 °C. The superhydrophobic surfaces are shown to enhance corrosion resistance by up to four orders of magnitude compared to bare copper.