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<p>The construction of superhydrophobic structures has been considered an effective route to improve anticorrosion properties. A nickel coating with a micro-nanostructure was electroplated from a choline chloride-based solvent and then modified with stearic acid to form nickel stearate and achieve superhydrophobic performance. The sample with a water contact angle of 155.25° and a sliding angle of 7.8° exhibited a self-cleaning behavior. The electrochemical parameters fitted from potentiodynamic polarization curves and the electrochemical impedance spectroscopy data indicated that the introduction of a superhydrophobic surface could enhance the corrosion resistance of the bare substrate. In addition, this nickel-based coating remained the superhydrophobic with after 180&#xa0;days of air exposure and 60&#xa0;h of soaking in 3.5 wt.% NaCl solution, respectively.</p>

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Fabrication of a Superhydrophobic Nickel Surface with Superior Corrosion Resistance Using Electrodeposition from Choline Chloride-Ethylene Glycol Deep Eutectic Solvent

  • 期刊论文

  • 发表日期：

    2025年6月9日

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  • Hui Xu,
  • Shaofu Li,
  • Fan Jiang,
  • Tongyu Song,
  • Tiange Lou,
  • Ziyi Xu

摘要

The construction of superhydrophobic structures has been considered an effective route to improve anticorrosion properties. A nickel coating with a micro-nanostructure was electroplated from a choline chloride-based solvent and then modified with stearic acid to form nickel stearate and achieve superhydrophobic performance. The sample with a water contact angle of 155.25° and a sliding angle of 7.8° exhibited a self-cleaning behavior. The electrochemical parameters fitted from potentiodynamic polarization curves and the electrochemical impedance spectroscopy data indicated that the introduction of a superhydrophobic surface could enhance the corrosion resistance of the bare substrate. In addition, this nickel-based coating remained the superhydrophobic with after 180 days of air exposure and 60 h of soaking in 3.5 wt.% NaCl solution, respectively.