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<p>Copper coatings production increases due to the society awareness of their great anti-pathogenic properties. However, such coatings must show a set of requirements among which the corrosion resistance plays a key role. This study focused on determining the corrosion resistance of newly designed copper-titania composite coatings enriched with TiO<sub>2</sub> nanoparticles. The series of Cu-TiO<sub>2</sub> coatings have been produced using electroless plating process and different NiSO<sub>4</sub>·7H<sub>2</sub>O concentration in the bath solution. Composite and copper coatings were examined by Scanning Electron Microscopy and tested using potentiodynamic measurements and Electrochemical Impedance Spectroscopy. Scanning Electron Microscopy observations revealed that both Cu and Cu-TiO<sub>2</sub> coatings exhibit globular morphology without porosity. Electron microscopy analyses confirmed that titania nanoparticles has been incorporated into the copper matrix of composite coatings and also that the grain size of copper coatings and composite, produced under the same plating conditions, is identical. X-ray diffraction showed the highest nickel intensity at the lowest NiSO<sub>4</sub> concentration, indicating its impact on coating thickness. Corrosion studies confirmed that copper-titania coatings also may offer the corrosion protection.</p>

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Antipathogenic electroless copper–titania composite coatings: tailoring the plating process toward better corrosion resistance

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年11月5日

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  • Monika Bugajska,
  • Izabella Kwiecien,
  • Marta Janusz-Skuza,
  • Agnieszka Bigos,
  • Maciej Szczerba,
  • Anna Wierzbicka-Miernik,
  • Andrzej Misztela,
  • Aneta Dyner,
  • Marcin Dyner,
  • Deyan Veselinov,
  • Hristo Skulev,
  • Joanna Wojewoda-Budka

摘要

Copper coatings production increases due to the society awareness of their great anti-pathogenic properties. However, such coatings must show a set of requirements among which the corrosion resistance plays a key role. This study focused on determining the corrosion resistance of newly designed copper-titania composite coatings enriched with TiO2 nanoparticles. The series of Cu-TiO2 coatings have been produced using electroless plating process and different NiSO4·7H2O concentration in the bath solution. Composite and copper coatings were examined by Scanning Electron Microscopy and tested using potentiodynamic measurements and Electrochemical Impedance Spectroscopy. Scanning Electron Microscopy observations revealed that both Cu and Cu-TiO2 coatings exhibit globular morphology without porosity. Electron microscopy analyses confirmed that titania nanoparticles has been incorporated into the copper matrix of composite coatings and also that the grain size of copper coatings and composite, produced under the same plating conditions, is identical. X-ray diffraction showed the highest nickel intensity at the lowest NiSO4 concentration, indicating its impact on coating thickness. Corrosion studies confirmed that copper-titania coatings also may offer the corrosion protection.