Staff Members - Benha University
Inhibitive performance of dapoxetine drug for corrosion of aluminum alloy (AA6063) in acidic and alkaline solutions: experimental and theoretical studies using Materials Studio v7.0
Desalination and Water Treatment • 2021
Publication Information
Authors
M. Abdallaha, E.A.M. Gad, H.M. Altass, Mona A. El-Etre, Arej S. Al-Gorair,
B.A. AL Jahadly, Salih S. Al-Juaid
Keywords
Keywords: Corrosion inhibitor; Dapoxetine; Adsorption; Frontier molecular orbital; Fukui function
Journal
Desalination and Water Treatment
Publisher
Desalination Publications
Volume
221
Issue
Not Available
Pages
270–280
publication.type
International
Paper Link
Not Available
Supplementary Materials
Not Available
Abstract
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.
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.