Fabrication of self-cleaning super-hydrophobic nickel/graphene hybrid film with improved corrosion resistance on mild steel
| Autor: | Chundong Dong, Wenming Chan, Jing Wang, Shibing Ding, Shunli Zheng, Manxin Zhang, Cheng Li, Tengfei Xiang |
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| Rok vydání: | 2017 |
| Předmět: |
Fabrication
Materials science chemistry.chemical_element 02 engineering and technology 010402 general chemistry 01 natural sciences Corrosion law.invention Contact angle law lcsh:TA401-492 General Materials Science Composite material Sandpaper Graphene Mechanical Engineering Metallurgy technology industry and agriculture 021001 nanoscience & nanotechnology 0104 chemical sciences Dielectric spectroscopy Field emission microscopy Nickel chemistry Mechanics of Materials lcsh:Materials of engineering and construction. Mechanics of materials 0210 nano-technology |
| Zdroj: | Materials & Design, Vol 117, Iss, Pp 280-288 (2017) |
| ISSN: | 0264-1275 |
| DOI: | 10.1016/j.matdes.2016.12.084 |
| Popis: | A self-cleaning super-hydrophobic nickel/graphene hybrid film with hierarchical structure was successfully fabricated on mild steel (MS) by electro-deposition process followed by myristic acid modification. The surface morphology and composition were characterized by a field emission scanning electron microscope (FESEM) and attached energy dispersive X-ray spectrum (EDS). The results showed that the hierarchical nickel/graphene film was well formed with random pinecone-like nano-protrusions nickel array on every micro-graphene-protrusion. The super-hydrophobic surface exhibited excellent super-hydrophobicity with a static water contact angle (CA) as high as 160.4 ± 1.5° and a sliding angle (SA) as low as 4.0 ± 0.9°. The super-hydrophobic surface showed excellent anticorrosion performance, mechanical durability and long-term stability in 3.5 wt.% NaCl solution, which were characterized by electrochemical impedance spectroscopy (EIS), sandpaper abrasion and immersion tests. In addition, the super-hydrophobic surface also exhibited good self-cleaning performance. Keywords: Super-hydrophobic, Mild steel, Nickel/graphene hybrid film, Corrosion resistance, Self-cleaning |
| Databáze: | OpenAIRE |
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