Evaluation of porphyrin molecules as effective corrosion inhibitors for copper alloy in sulfuric acid using both experimental and computational approaches
The inhibition efficacies of two porphyrin molecules, namely, 5,10,15,20-tetra-[m-(methoxy) phenyl] porphyrin (m-TMPP) and 5,10,15,20-tetra-[p-(methoxy)phenyl] porphyrin (p-TMPP) on the corrosion of copper alloy (C12510) in 1.0 M H2SO4 solutions were examined. Some chemical, electrochemical measure...
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| Format: | Article |
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International Association of Physical Chemists (IAPC)
2025-02-01
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| Series: | Journal of Electrochemical Science and Engineering |
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| Online Access: | https://pub.iapchem.org/ojs/index.php/JESE/article/view/2544 |
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| author | Metwally Abdallah Majda Alfakeer Rasha N Felaly Abdulaziz M. Almohyawi Jabir H. Al-Fahemi Salih S. Al-Juaid Doaa F. Seyam Elsayed M. Mabrouk Kamal A. Soliman |
| author_facet | Metwally Abdallah Majda Alfakeer Rasha N Felaly Abdulaziz M. Almohyawi Jabir H. Al-Fahemi Salih S. Al-Juaid Doaa F. Seyam Elsayed M. Mabrouk Kamal A. Soliman |
| author_sort | Metwally Abdallah |
| collection | DOAJ |
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The inhibition efficacies of two porphyrin molecules, namely, 5,10,15,20-tetra-[m-(methoxy) phenyl] porphyrin (m-TMPP) and 5,10,15,20-tetra-[p-(methoxy)phenyl] porphyrin (p-TMPP) on the corrosion of copper alloy (C12510) in 1.0 M H2SO4 solutions were examined. Some chemical, electrochemical measurements, density functional theory and Monte Carlo simulations were utilized to study the adsorption behaviour and corrosion inhibition efficiency of m-TMPP and p-TMPP on the Cu (111) surface in acidic media. Scanning electron microscopy analysis was employed to examine the surface morphologies of the tested C12510 surfaces. The outcomes of these techniques proved that the inhibition efficiency increases with increasing concentration of TMPP molecules and with lowering tempera¬tu¬res. The inhibition efficiency is reached to 96.23 and 97.61 % in the case of m-TMPP and
p-TMPP, respectively, using the potentiodynamic polarization technique. The inhibitory effect of TMPP molecules is explained based on their spontaneous physicochemical adsorption on the surface of C12510. The adsorption process is obeyed by the Langmuir isotherm model. Additionally, some thermodynamic activation parameters were determined and discussed. It was discovered that the two TMPP compounds retarded the pitting corrosion of C12510 in chloride-containing solutions by shifting the pitting potential to a more noble direction. Based on all the approaches investigated, the inhibitory efficacy of p-TMPP is higher than that of m-TMPP at every concentration tested.
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| format | Article |
| id | doaj-art-44bfd86117bd4d8289dd6fbb1ac0388c |
| institution | Kabale University |
| issn | 1847-9286 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | International Association of Physical Chemists (IAPC) |
| record_format | Article |
| series | Journal of Electrochemical Science and Engineering |
| spelling | doaj-art-44bfd86117bd4d8289dd6fbb1ac0388c2025-02-05T07:56:07ZengInternational Association of Physical Chemists (IAPC)Journal of Electrochemical Science and Engineering1847-92862025-02-0110.5599/jese.2544Evaluation of porphyrin molecules as effective corrosion inhibitors for copper alloy in sulfuric acid using both experimental and computational approachesMetwally Abdallah0Majda Alfakeer1Rasha N Felaly2Abdulaziz M. Almohyawi3Jabir H. Al-Fahemi4Salih S. Al-Juaid5Doaa F. Seyam6Elsayed M. Mabrouk7Kamal A. Soliman8Chemistry Department, Faculty of Sciences, Umm Al-Qura University, Makkah, Saudi Arabia and Chemistry Department, Faculty of Science, Benha University, Benha, EgyptChemistry Department, Faculty of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi ArabiaChemistry Department, Faculty of Sciences, Umm Al-Qura University, Makkah, Saudi ArabiaChemistry Department, Faculty of Sciences, Umm Al-Qura University, Makkah, Saudi ArabiaChemistry Department, Faculty of Sciences, Umm Al-Qura University, Makkah, Saudi ArabiaChemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi ArabiaChemistry Department, Faculty of Science, Benha University, Benha, EgyptChemistry Department, Faculty of Science, Benha University, Benha, EgyptChemistry Department, Faculty of Science, Benha University, Benha, Egypt The inhibition efficacies of two porphyrin molecules, namely, 5,10,15,20-tetra-[m-(methoxy) phenyl] porphyrin (m-TMPP) and 5,10,15,20-tetra-[p-(methoxy)phenyl] porphyrin (p-TMPP) on the corrosion of copper alloy (C12510) in 1.0 M H2SO4 solutions were examined. Some chemical, electrochemical measurements, density functional theory and Monte Carlo simulations were utilized to study the adsorption behaviour and corrosion inhibition efficiency of m-TMPP and p-TMPP on the Cu (111) surface in acidic media. Scanning electron microscopy analysis was employed to examine the surface morphologies of the tested C12510 surfaces. The outcomes of these techniques proved that the inhibition efficiency increases with increasing concentration of TMPP molecules and with lowering tempera¬tu¬res. The inhibition efficiency is reached to 96.23 and 97.61 % in the case of m-TMPP and p-TMPP, respectively, using the potentiodynamic polarization technique. The inhibitory effect of TMPP molecules is explained based on their spontaneous physicochemical adsorption on the surface of C12510. The adsorption process is obeyed by the Langmuir isotherm model. Additionally, some thermodynamic activation parameters were determined and discussed. It was discovered that the two TMPP compounds retarded the pitting corrosion of C12510 in chloride-containing solutions by shifting the pitting potential to a more noble direction. Based on all the approaches investigated, the inhibitory efficacy of p-TMPP is higher than that of m-TMPP at every concentration tested. https://pub.iapchem.org/ojs/index.php/JESE/article/view/2544Metal alloy corrosionheterocyclic organic compoundsadsorption isothermpitting potentialsurface morphologyquantum chemical calculations |
| spellingShingle | Metwally Abdallah Majda Alfakeer Rasha N Felaly Abdulaziz M. Almohyawi Jabir H. Al-Fahemi Salih S. Al-Juaid Doaa F. Seyam Elsayed M. Mabrouk Kamal A. Soliman Evaluation of porphyrin molecules as effective corrosion inhibitors for copper alloy in sulfuric acid using both experimental and computational approaches Journal of Electrochemical Science and Engineering Metal alloy corrosion heterocyclic organic compounds adsorption isotherm pitting potential surface morphology quantum chemical calculations |
| title | Evaluation of porphyrin molecules as effective corrosion inhibitors for copper alloy in sulfuric acid using both experimental and computational approaches |
| title_full | Evaluation of porphyrin molecules as effective corrosion inhibitors for copper alloy in sulfuric acid using both experimental and computational approaches |
| title_fullStr | Evaluation of porphyrin molecules as effective corrosion inhibitors for copper alloy in sulfuric acid using both experimental and computational approaches |
| title_full_unstemmed | Evaluation of porphyrin molecules as effective corrosion inhibitors for copper alloy in sulfuric acid using both experimental and computational approaches |
| title_short | Evaluation of porphyrin molecules as effective corrosion inhibitors for copper alloy in sulfuric acid using both experimental and computational approaches |
| title_sort | evaluation of porphyrin molecules as effective corrosion inhibitors for copper alloy in sulfuric acid using both experimental and computational approaches |
| topic | Metal alloy corrosion heterocyclic organic compounds adsorption isotherm pitting potential surface morphology quantum chemical calculations |
| url | https://pub.iapchem.org/ojs/index.php/JESE/article/view/2544 |
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