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Chemical, electrochemical, and quantum investigation into the use of an organophosphorus derivative to inhibit copper corrosion in acidic environments.
Deyab, M A; AlGhamdi, Jwaher M; Abdeen, Marwa M; Elfattah, Marwa Abd; Galhoum, Ahmed; El-Shamy, Omnia A A; El-Sayed, Ibrahim E.
Afiliação
  • Deyab MA; Egyptian Petroleum Research Institute, Nasr City, Cairo, 11727, Egypt. hamadadeiab@yahoo.com.
  • AlGhamdi JM; Department of Chemistry, College of Science, Imam Abdulrahman Bin Faisal University, 31451, Dammam, Saudi Arabia.
  • Abdeen MM; Basic Science Department, Higher Institute of Engineering and Technology, Menoufia, Egypt.
  • Elfattah MA; Chemical Engineering Department, Higher Institute of Engineering and Technology, Menoufia, Egypt.
  • Galhoum A; Nuclear Materials Authority, El-Maadi, P.O. Box 530, Cairo, Egypt.
  • El-Shamy OAA; Egyptian Petroleum Research Institute, Nasr City, Cairo, 11727, Egypt.
  • El-Sayed IE; Chemistry Department, Faculty of Science, Menoufia University, Shebin El-Kom, Egypt. ibrahimtantawy@yahoo.co.uk.
Sci Rep ; 14(1): 11395, 2024 May 18.
Article em En | MEDLINE | ID: mdl-38762558
ABSTRACT
In order to protect the copper against corrosion, a novel corrosion inhibitor known as diphenyl ((2-aminoethyl) amino) (4-methoxyphenyl) methyl) phosphonate (DAMP) was developed. Acid solutions of HCl and H2SO4 were the aggressive solutions employed in this study. Analysis using the FT-IR, 1H-NMR, 31P-NMR, 13C-NMR and BET confirmed that the DAMP was successfully synthesized. The anti-corrosion capabilities of DAMP are evaluated using a combination of chemical, electrochemical and quantum studies. The DAMP has been found to be crucial in preventing the corrosion of copper in both HCl and H2SO4 acid. This was obviously implied by the observation that the corrosion rate of copper in acid solutions decreased when DAMP was added. It is significant to note that 180 ppm produced the highest levels of inhibiting efficiency (96.6% for HCl and 95.2% for H2SO4). The tendency of DAMP to adsorb on the surface of copper through its hetero-atoms (O, N, and P) is the main factor for the anti-corrosion capabilities of DAMP. Results from SEM/EDX tests supported this. The actual adsorption takes place via various active centers, physical and chemical mechanisms that are coordinated with the estimated quantum parameters. Additionally, the adsorption of DAMP adheres to the Langmuir isotherm.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article