In-situ intercalation of 8-hydroxyquinoline in Mg-Al LDH coating to improve the corrosion resistance of AZ31
| Autor: | Shixiong Wei, Muhammad Junaid Anjum, Wei Wang, Zhijie Zhao, Waheed Qamar Khan, Ghulam Yasin, Jingmao Zhao, Vahdat Zahedi Asl |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Scanning electron microscope 020209 energy General Chemical Engineering Intercalation (chemistry) 02 engineering and technology General Chemistry engineering.material 021001 nanoscience & nanotechnology Corrosion chemistry.chemical_compound Adsorption chemistry Coating 0202 electrical engineering electronic engineering information engineering engineering Hydroxide General Materials Science Chelation Fourier transform infrared spectroscopy 0210 nano-technology Nuclear chemistry |
| Zdroj: | Corrosion Science. 157:1-10 |
| ISSN: | 0010-938X |
| DOI: | 10.1016/j.corsci.2019.05.022 |
| Popis: | Mg-Al based layered double hydroxide (LDH) coating intercalated with 8-hydroxyquinoline (8HQ) was successfully prepared on AZ31. The influence of concentrations of 8HQ on the morphology and corrosion resistance is reported first time. X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectra confirm the intercalation of 8HQ. Furthermore, scanning electron microscopy (SEM) reveals concentration dependence of morphology of LDH. The enhancement in corrosion resistance is a function of morphological change, adsorption of 8HQ and chelation with Mg2+. The optimum amount of 8HQ enhances corrosion resistance of LDH coating. The deductions of this study deliver valuable understandings of corrosion protection mechanism of Mg-Al-LDH coatings. |
| Databáze: | OpenAIRE |
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