Corrosion inhibition of biomimetic super-hydrophobic electrodeposition coatings on copper substrate

• We have prepared a biomimetic super-hydrophobic surface on copper substrate by one-step electrodeposition.
• The super-hydrophobicity mechanism relies on morphologies and chemical component on surface.
• The super-hydrophobic surface has a good corrosion inhibition.

Inspired by the special microstructure of plant leaves such as lotus leaves, we prepared super-hydrophobic surfaces by a fast, facile, and one-step electrodeposition on copper substrates. The prepared surface revealed super-hydrophobicity with a contact angle value of 161.5° ± 2°. Meanwhile, corrosion resistance of obtained coatings was evaluated by electrochemical measurement in detail. These results indicated that electrodeposition coatings provided greater protection against corrosion behavior. Moreover, the super-hydrophobicity improved corrosion resistance of the coating. This method can be easily extended to other conductive materials and time-saving, having a great potential for future application in industrial fields.