The inhibiting effect of the dapoxetine drug towards corrosion of aluminum alloy (AA6063) in 1.0 M
HCl and 1.0 M NaOH solutions using weight loss, potentiodynamic polarization, and theoretical
calculation. The results demonstrated that the inhibition efficiency (IE%) was increased with increasing
the concentration of dapoxetine and lowering the temperature. IE% of dapoxetine is higher in
1.0 M HCl than in 1.0 M NaOH solution. The activation parameters of the corrosion process are endothermic,
and the formation of the activated compound includes an association process. Inhibition
was demonstrated in light of the horizontal adsorption of the complex formed between dapoxetine
and the alloy surface on AA6063 according to the Langmuir absorption isotherm. The inhibition
performance of Dapxitine on AA6063 was investigated using materials Studio v7.0. The quantum
chemical descriptors are found to suitable to explain the performance of title molecule as corrosion
inhibitors. Additionally, adsorption of dapoxetine on an aluminum alloy (Al) (111) has been investigated.
The results of the current theoretical approach comply with that obtained experimentally. |
