Abstract
In this study, nitrogen-doped graphene (NG) coated 6061 Al alloy (NG/Al) was prepared using a novel roll-coating technique. Through Raman and X-ray photoelectron spectroscopy analyses (XPS), the NG films with varying graphitic-N content obtained by plasma treatment was investigated. The electrochemical impedance spectroscopy, polarization curve, and immersion test were used to study the corrosion behaviors of the films. The results show that NG/Al exhibits enhanced corrosion resistance properties due to the enhanced adhesion between Al substrate and NG. In particular, the prepared NG/Al with the highest graphitic-N content shows superior resistance against both 0.5 M H2SO4 and 3.5 wt% NaCl.
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