Synergistic effect of KI and urea on the corrosion protection of mild steel in 0.5 M H2SO4: Experimental and computational insights
Electrochemical impedance spectroscopy (EIS), gravimetric measurement, scanning electron microscopy (SEM), and Fourier transfer infrared spectroscopy (FTIR) studies have been used to examine the synergistic effect of KI on the corrosion inhibition efficacy of urea on mild steel (MS) in 0.5 M sulphur...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-01-01
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| Series: | Results in Chemistry |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211715623002205 |
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| author | Terngu T. Uzah Idongesit J. Mbonu Terkumbur E. Gber Hitler Louis |
| author_facet | Terngu T. Uzah Idongesit J. Mbonu Terkumbur E. Gber Hitler Louis |
| author_sort | Terngu T. Uzah |
| collection | DOAJ |
| description | Electrochemical impedance spectroscopy (EIS), gravimetric measurement, scanning electron microscopy (SEM), and Fourier transfer infrared spectroscopy (FTIR) studies have been used to examine the synergistic effect of KI on the corrosion inhibition efficacy of urea on mild steel (MS) in 0.5 M sulphuric acid solution, the findings demonstrate that mild steel inhibition efficiencies improve with increasing inhibitor concentrations, and that synergistic improvements in inhibition efficiencies were seen upon adding potassium iodide, the urea and urea + KI adsorptions on the surfaces of the corroding metal follow the Langmuir isotherm as well as functions as a physisorption inhibitor, the adsorption of the inhibitor on the metal surface and subsequent protection from corrosion were confirmed by scanning electron microscopy investigations, the mechanism of the corrosion inhibition process and the interpretation of the experimental results at the atomic and molecular levels were also understood using density functional theory (DFT) calculation and Monte Carlo simulation. |
| first_indexed | 2024-03-13T04:12:10Z |
| format | Article |
| id | doaj.art-0cb8f55fbc714bd8a0534d54e9ff179a |
| institution | Directory Open Access Journal |
| issn | 2211-7156 |
| language | English |
| last_indexed | 2024-03-13T04:12:10Z |
| publishDate | 2023-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Chemistry |
| spelling | doaj.art-0cb8f55fbc714bd8a0534d54e9ff179a2023-06-21T06:52:48ZengElsevierResults in Chemistry2211-71562023-01-015100981Synergistic effect of KI and urea on the corrosion protection of mild steel in 0.5 M H2SO4: Experimental and computational insightsTerngu T. Uzah0Idongesit J. Mbonu1Terkumbur E. Gber2Hitler Louis3Department of Chemistry, College of Science, Federal University of Petroleum Resources, Effurum, Nigeria; Corresponding author.Department of Chemistry, College of Science, Federal University of Petroleum Resources, Effurum, NigeriaComputational and Bio-Simulation Research Group, University of Calabar, Calabar, NigeriaComputational and Bio-Simulation Research Group, University of Calabar, Calabar, NigeriaElectrochemical impedance spectroscopy (EIS), gravimetric measurement, scanning electron microscopy (SEM), and Fourier transfer infrared spectroscopy (FTIR) studies have been used to examine the synergistic effect of KI on the corrosion inhibition efficacy of urea on mild steel (MS) in 0.5 M sulphuric acid solution, the findings demonstrate that mild steel inhibition efficiencies improve with increasing inhibitor concentrations, and that synergistic improvements in inhibition efficiencies were seen upon adding potassium iodide, the urea and urea + KI adsorptions on the surfaces of the corroding metal follow the Langmuir isotherm as well as functions as a physisorption inhibitor, the adsorption of the inhibitor on the metal surface and subsequent protection from corrosion were confirmed by scanning electron microscopy investigations, the mechanism of the corrosion inhibition process and the interpretation of the experimental results at the atomic and molecular levels were also understood using density functional theory (DFT) calculation and Monte Carlo simulation.http://www.sciencedirect.com/science/article/pii/S2211715623002205ElectrochemicalInhibition efficacyLangmuirDFTPhysisorption |
| spellingShingle | Terngu T. Uzah Idongesit J. Mbonu Terkumbur E. Gber Hitler Louis Synergistic effect of KI and urea on the corrosion protection of mild steel in 0.5 M H2SO4: Experimental and computational insights Results in Chemistry Electrochemical Inhibition efficacy Langmuir DFT Physisorption |
| title | Synergistic effect of KI and urea on the corrosion protection of mild steel in 0.5 M H2SO4: Experimental and computational insights |
| title_full | Synergistic effect of KI and urea on the corrosion protection of mild steel in 0.5 M H2SO4: Experimental and computational insights |
| title_fullStr | Synergistic effect of KI and urea on the corrosion protection of mild steel in 0.5 M H2SO4: Experimental and computational insights |
| title_full_unstemmed | Synergistic effect of KI and urea on the corrosion protection of mild steel in 0.5 M H2SO4: Experimental and computational insights |
| title_short | Synergistic effect of KI and urea on the corrosion protection of mild steel in 0.5 M H2SO4: Experimental and computational insights |
| title_sort | synergistic effect of ki and urea on the corrosion protection of mild steel in 0 5 m h2so4 experimental and computational insights |
| topic | Electrochemical Inhibition efficacy Langmuir DFT Physisorption |
| url | http://www.sciencedirect.com/science/article/pii/S2211715623002205 |
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