Abstract
The potential marine corrosion-resistant and anti-biofouling applications of superhydrophobic materials arouse tremendous attention of researchers and engineers. Herein, we report an ultrafast (∼120 s) and eco-friendly one step electrodeposition strategy to construct fluorine-free superhydrophobic aluminum surface with outstanding water repellency and ultrahigh corrosion resistance to inhibit marine corrosion. As characterized through Field-emission scanning electron microscopy (FE-SEM), Atomic force microscopy (AFM), Energy dispersive spectroscopy (EDS), Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS), the as-constructed non-fluorinated superhydrophobic surface is composed of manganese palmitate complex featuring with a typical dual-scale hierarchical papillae structures and low surface energy. In addition, the as-fabricated superhydrophobic surfaces possess extremely low surface adhesive force and excellent self-cleaning ability. The results of electrochemical impedance spectra (EIS) tests demonstrate a remarkable augment of charge transfer resistance of the corrosion process, suggesting a prominent anticorrosion performance. We believe this rapid, cost-effective and environmental friendly one step approach could find broad prospects in creation and application of metallic superhydrophobic surfaces.
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