Abstract
The ethanol extract of Kola nitida seed (KN extract) was investigated for its ability to mitigate the corrosion of aluminium alloy AA3003 in acidic environment using joint experimental and computational approach. The obtained results revealed that KN extract hindered the corrosion reaction. The effectiveness of protection became more pronounced with increasing extract concentration but decreased with prolonged exposure time. Electrochemical data showed that organic constituents of the extract adsorbed on the Al surface, in agreement with the Langmuir equation and reduced the anodic and cathodic current densities. Computational simulations were adopted to visualize the adsorption of various constituents of KN extract on Al (110) slab.
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