Scholarlink

<p>Zinc-graphene oxide (Zn-GO) composite coatings demonstrate excellent corrosion resistance, making them ideal for marine applications. This study evaluates the corrosion behavior of these coatings under different marine conditions, including salt spray, cyclic wet-dry exposure, and full immersion, with a focus on optimizing the graphene oxide (GO) concentration. The interface protection mechanism was investigated through electrochemical tests and microstructural characterization. Results indicate that a GO concentration of 0.75 g/L provides the best corrosion protection across all conditions. Corrosion resistance was assessed using salt spray tests, electrochemical impedance spectroscopy (EIS), and polarization measurements. Zn-GO-0.75 coatings exhibit significantly lower surface corrosion after prolonged salt spray exposure compared to other coatings. Under alternating wet-dry cycles, GO concentration of 0.75 g/L significantly enhances corrosion resistance, reducing the corrosion current density by 80% compared to pure zinc coatings, enhancing the barrier effect. In full immersion, the total charge transfer resistance is nine times higher than pure zinc coatings, reflecting improved resistance to corrosive media. The targeted incorporation of graphene oxide not only boosts the protective properties but also extends the service life of the coatings. This research provides crucial experimental data and theoretical insights for developing highly efficient corrosion-resistant coatings for complex marine environments.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Study on the Corrosion Resistance of Zinc-Graphene Oxide Composite Coatings in Marine Environments

  • 期刊论文

  • 发表日期：

    2025年12月29日

查看全文
  • Rongjia Du,
  • Shuang An,
  • Yanru Sun,
  • Dan Wang,
  • Fei Xie

摘要

Zinc-graphene oxide (Zn-GO) composite coatings demonstrate excellent corrosion resistance, making them ideal for marine applications. This study evaluates the corrosion behavior of these coatings under different marine conditions, including salt spray, cyclic wet-dry exposure, and full immersion, with a focus on optimizing the graphene oxide (GO) concentration. The interface protection mechanism was investigated through electrochemical tests and microstructural characterization. Results indicate that a GO concentration of 0.75 g/L provides the best corrosion protection across all conditions. Corrosion resistance was assessed using salt spray tests, electrochemical impedance spectroscopy (EIS), and polarization measurements. Zn-GO-0.75 coatings exhibit significantly lower surface corrosion after prolonged salt spray exposure compared to other coatings. Under alternating wet-dry cycles, GO concentration of 0.75 g/L significantly enhances corrosion resistance, reducing the corrosion current density by 80% compared to pure zinc coatings, enhancing the barrier effect. In full immersion, the total charge transfer resistance is nine times higher than pure zinc coatings, reflecting improved resistance to corrosive media. The targeted incorporation of graphene oxide not only boosts the protective properties but also extends the service life of the coatings. This research provides crucial experimental data and theoretical insights for developing highly efficient corrosion-resistant coatings for complex marine environments.