Exploring corrosion protection of mild steel by ionic liquid functionalized graphene oxide: Gravimetric, electrochemical, and surface studies
This work investigates the corrosion protective characteristics of graphene oxide functionalized with an ionic liquid, namely choline hexanoate, abbreviated as Ch-Hex/GO nanohybrid, for mild steel in 5% HCl solution. The performance of this nanohybrid was evaluated using a range of analytical method...
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Elsevier
2025-01-01
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| Series: | Results in Chemistry |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211715624006817 |
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| author | M.Alharbi Ruby Aslam Ajahar Khan Khalid A. Alamry Mahmoud A. Hussein Yas Al-Hadeethi Elena Bekyarova S. Alqahtani |
| author_facet | M.Alharbi Ruby Aslam Ajahar Khan Khalid A. Alamry Mahmoud A. Hussein Yas Al-Hadeethi Elena Bekyarova S. Alqahtani |
| author_sort | M.Alharbi |
| collection | DOAJ |
| description | This work investigates the corrosion protective characteristics of graphene oxide functionalized with an ionic liquid, namely choline hexanoate, abbreviated as Ch-Hex/GO nanohybrid, for mild steel in 5% HCl solution. The performance of this nanohybrid was evaluated using a range of analytical methods, including weight loss measurement, electrochemical method, contact angle measurement, XPS, Atomic Force Microscopy (AFM), Scanning Electron Microscopy (SEM), and Energy Dispersive Spectroscopy (EDS). Using Fourier Transform Infrared Spectroscopy (FTIR), Transmission Electron Microscopy (TEM), and Raman analysis, the synthesis of Ch-Hex/GO was verified. An inhibitory efficiency reaching 85.75 % at a 100 ppm inhibitor concentration at 298 K was observed, which was further increased with increasing temperature, reaching 97.48 % at 323 K, suggesting a chemisorption mechanism. Assessments of inhibition performance throughout a range of immersion times, up to 144 hr, revealed a steady rise in efficiency up to 96 hr, followed by a minor decline while maintaining efficiencies above 85 %. The pronounced increases in polarization resistance (Rp) and reductions in corrosion current density (Icorr) indicated the strong adsorption of inhibitor molecules onto metal surface. In addition, the values of open circuit potential (OCP) and corrosion potential (Ecorr) were further evidence of a mixed inhibition mechanism. XPS and AFM/SEM analyses confirmed and supported these results, indicating the formation of protective layer on the steel surface. |
| format | Article |
| id | doaj-art-3e25abda6bab4f67893d6fac9657e507 |
| institution | Kabale University |
| issn | 2211-7156 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Chemistry |
| spelling | doaj-art-3e25abda6bab4f67893d6fac9657e5072025-01-29T05:00:48ZengElsevierResults in Chemistry2211-71562025-01-0113101985Exploring corrosion protection of mild steel by ionic liquid functionalized graphene oxide: Gravimetric, electrochemical, and surface studies M.Alharbi0Ruby Aslam1Ajahar Khan2Khalid A. Alamry3Mahmoud A. Hussein4Yas Al-Hadeethi5Elena Bekyarova6S. Alqahtani7University of Jeddah, Collage of Science, Department of Physics, Jeddah, Kingdom of Saudi ArabiaSchool of Civil and Hydraulic Engineering, Chongqing University of Science and Technology, Chongqing 401331, China; Corresponding author.Department of Food and Nutrition, Bionanocomposite Research Center, Kyung Hee University, 26 Kyungheedae‑ro, Dongdaemun‑gu, Seoul 02447, South KoreaChemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi ArabiaChemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi ArabiaDepartment of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi ArabiaDepartment of Chemical & Environmental Engineering, Center for Nanoscale Science and Engineering, University of California at Riverside, Riverside, CA 92521-0403 USAEstidama for Project Engineering, 7th Floor, Almurjanah Tower, Jeddah, Saudi ArabiaThis work investigates the corrosion protective characteristics of graphene oxide functionalized with an ionic liquid, namely choline hexanoate, abbreviated as Ch-Hex/GO nanohybrid, for mild steel in 5% HCl solution. The performance of this nanohybrid was evaluated using a range of analytical methods, including weight loss measurement, electrochemical method, contact angle measurement, XPS, Atomic Force Microscopy (AFM), Scanning Electron Microscopy (SEM), and Energy Dispersive Spectroscopy (EDS). Using Fourier Transform Infrared Spectroscopy (FTIR), Transmission Electron Microscopy (TEM), and Raman analysis, the synthesis of Ch-Hex/GO was verified. An inhibitory efficiency reaching 85.75 % at a 100 ppm inhibitor concentration at 298 K was observed, which was further increased with increasing temperature, reaching 97.48 % at 323 K, suggesting a chemisorption mechanism. Assessments of inhibition performance throughout a range of immersion times, up to 144 hr, revealed a steady rise in efficiency up to 96 hr, followed by a minor decline while maintaining efficiencies above 85 %. The pronounced increases in polarization resistance (Rp) and reductions in corrosion current density (Icorr) indicated the strong adsorption of inhibitor molecules onto metal surface. In addition, the values of open circuit potential (OCP) and corrosion potential (Ecorr) were further evidence of a mixed inhibition mechanism. XPS and AFM/SEM analyses confirmed and supported these results, indicating the formation of protective layer on the steel surface.http://www.sciencedirect.com/science/article/pii/S2211715624006817NanomaterialGrapheneCorrosion inhibitor |
| spellingShingle | M.Alharbi Ruby Aslam Ajahar Khan Khalid A. Alamry Mahmoud A. Hussein Yas Al-Hadeethi Elena Bekyarova S. Alqahtani Exploring corrosion protection of mild steel by ionic liquid functionalized graphene oxide: Gravimetric, electrochemical, and surface studies Results in Chemistry Nanomaterial Graphene Corrosion inhibitor |
| title | Exploring corrosion protection of mild steel by ionic liquid functionalized graphene oxide: Gravimetric, electrochemical, and surface studies |
| title_full | Exploring corrosion protection of mild steel by ionic liquid functionalized graphene oxide: Gravimetric, electrochemical, and surface studies |
| title_fullStr | Exploring corrosion protection of mild steel by ionic liquid functionalized graphene oxide: Gravimetric, electrochemical, and surface studies |
| title_full_unstemmed | Exploring corrosion protection of mild steel by ionic liquid functionalized graphene oxide: Gravimetric, electrochemical, and surface studies |
| title_short | Exploring corrosion protection of mild steel by ionic liquid functionalized graphene oxide: Gravimetric, electrochemical, and surface studies |
| title_sort | exploring corrosion protection of mild steel by ionic liquid functionalized graphene oxide gravimetric electrochemical and surface studies |
| topic | Nanomaterial Graphene Corrosion inhibitor |
| url | http://www.sciencedirect.com/science/article/pii/S2211715624006817 |
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