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Related Experiment Video

Updated: Sep 3, 2025

Fabrication of Superhydrophobic Metal Surfaces for Anti-Icing Applications
11:20

Fabrication of Superhydrophobic Metal Surfaces for Anti-Icing Applications

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Constructing Superhydrophobic Surface on Copper Substrate with Dealloying-Forming and Solution-Immersion Method.

Hui Li1, Yannan Sun1, Zhe Wang1

  • 1Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering, College of Mechatronics and Control Engineering, Shenzhen University, Nanhai Ave 3688, Shenzhen 518060, China.

Materials (Basel, Switzerland)
|July 27, 2022
PubMed
Summary

Researchers developed a superhydrophobic copper surface using dealloying and stearic acid treatment. This efficient method creates surfaces with excellent non-sticking, self-cleaning, and anti-corrosion properties.

Keywords:
contact anglecopper stearatedealloyingnanostructuressuperhydrophobic

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Last Updated: Sep 3, 2025

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Area of Science:

  • Materials Science
  • Surface Engineering
  • Nanotechnology

Background:

  • Superhydrophobic surfaces offer advanced functionalities like self-cleaning and anti-corrosion.
  • Developing cost-effective and efficient fabrication methods for superhydrophobic materials is crucial for widespread application.

Purpose of the Study:

  • To construct a superhydrophobic surface on a copper substrate using a novel dealloying-forming and solution-immersion approach.
  • To investigate the influence of fabrication parameters on the surface morphology and superhydrophobic properties.
  • To evaluate the potential applications of the fabricated superhydrophobic copper surface.

Main Methods:

  • Fabrication of nanostructures on a copper surface via electrodeposition, thermal alloying, and chemical dealloying of zinc.
  • Modification of the dealloyed copper surface with copper stearate through a solution-immersion process.
  • Characterization using Scanning Electron Microscopy (SEM), X-ray Diffractometry (XRD), and Fourier Transform Infrared Spectrometry (FTIR).

Main Results:

  • A leaf-like copper stearate structure was successfully formed on the dealloyed copper surface.
  • Optimized immersion in a 0.005 mol/L stearic acid ethanol solution for 5 minutes yielded optimal results.
  • The resulting superhydrophobic surface exhibited a contact angle exceeding 156.5°.
  • Nanostructures significantly enhanced the formation of copper stearate by providing increased attachment areas.

Conclusions:

  • An efficient and scalable method for fabricating superhydrophobic copper surfaces was demonstrated.
  • The superhydrophobic copper surface possesses excellent non-sticking, self-cleaning, anti-corrosion, and stability properties.
  • This approach holds significant potential for engineering applications requiring advanced surface functionalities.