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Enhancing the inhibition and adsorption performance of SABIC iron corrosion in sulfuric acid by expired vitamins. Experimental and computational approach
The inhibition potency of expired thiamine or vitamin B1 (VB1) and riboflavin or vitamin B2 (VB2) against SABIC iron corrosion in 0.5 M H(2)SO(4) solutions was investigated using chemical and electrochemical techniques. Theoretical studies such as DFT and MC simulations were performed on both VB1 an...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9033165/ https://www.ncbi.nlm.nih.gov/pubmed/35479718 http://dx.doi.org/10.1039/d1ra01010g |
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author | Abdallah, M. Soliman, K. A. Al-Gorair, Arej S. Al Bahir, A. Al-Fahemi, Jabir H. Motawea, M. S. Al-Juaid, Salih S. |
author_facet | Abdallah, M. Soliman, K. A. Al-Gorair, Arej S. Al Bahir, A. Al-Fahemi, Jabir H. Motawea, M. S. Al-Juaid, Salih S. |
author_sort | Abdallah, M. |
collection | PubMed |
description | The inhibition potency of expired thiamine or vitamin B1 (VB1) and riboflavin or vitamin B2 (VB2) against SABIC iron corrosion in 0.5 M H(2)SO(4) solutions was investigated using chemical and electrochemical techniques. Theoretical studies such as DFT and MC simulations were performed on both VB1 and VB2 inhibitors to obtain information related to the experimental results. It has been found that the inhibition efficacy assigned from all measurements used increases with increasing concentration of the two expired vitamins and reduces at elevated temperatures. It reached 91.14% and 92.40% at 250 ppm of VB1 and VB2, respectively. The inhibition was explicated by the adsorption of the complex formed between expired vitamins and ferrous ions on the SABIC iron surface. The adsorption was found to obey the Langmuir isotherm model. Galvanostatic polarization demonstrated that the two expired vitamins act as an inhibitor of the mixed type. These expired vitamins have proven effective in inhibiting the pitting corrosion induced by the presence of Cl(−) ions. The pitting potential is transferred to the positive values showing resistance to pitting damage. The theoretical parameter values are consistent with experimental results. |
format | Online Article Text |
id | pubmed-9033165 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90331652022-04-26 Enhancing the inhibition and adsorption performance of SABIC iron corrosion in sulfuric acid by expired vitamins. Experimental and computational approach Abdallah, M. Soliman, K. A. Al-Gorair, Arej S. Al Bahir, A. Al-Fahemi, Jabir H. Motawea, M. S. Al-Juaid, Salih S. RSC Adv Chemistry The inhibition potency of expired thiamine or vitamin B1 (VB1) and riboflavin or vitamin B2 (VB2) against SABIC iron corrosion in 0.5 M H(2)SO(4) solutions was investigated using chemical and electrochemical techniques. Theoretical studies such as DFT and MC simulations were performed on both VB1 and VB2 inhibitors to obtain information related to the experimental results. It has been found that the inhibition efficacy assigned from all measurements used increases with increasing concentration of the two expired vitamins and reduces at elevated temperatures. It reached 91.14% and 92.40% at 250 ppm of VB1 and VB2, respectively. The inhibition was explicated by the adsorption of the complex formed between expired vitamins and ferrous ions on the SABIC iron surface. The adsorption was found to obey the Langmuir isotherm model. Galvanostatic polarization demonstrated that the two expired vitamins act as an inhibitor of the mixed type. These expired vitamins have proven effective in inhibiting the pitting corrosion induced by the presence of Cl(−) ions. The pitting potential is transferred to the positive values showing resistance to pitting damage. The theoretical parameter values are consistent with experimental results. The Royal Society of Chemistry 2021-05-11 /pmc/articles/PMC9033165/ /pubmed/35479718 http://dx.doi.org/10.1039/d1ra01010g Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/ |
spellingShingle | Chemistry Abdallah, M. Soliman, K. A. Al-Gorair, Arej S. Al Bahir, A. Al-Fahemi, Jabir H. Motawea, M. S. Al-Juaid, Salih S. Enhancing the inhibition and adsorption performance of SABIC iron corrosion in sulfuric acid by expired vitamins. Experimental and computational approach |
title | Enhancing the inhibition and adsorption performance of SABIC iron corrosion in sulfuric acid by expired vitamins. Experimental and computational approach |
title_full | Enhancing the inhibition and adsorption performance of SABIC iron corrosion in sulfuric acid by expired vitamins. Experimental and computational approach |
title_fullStr | Enhancing the inhibition and adsorption performance of SABIC iron corrosion in sulfuric acid by expired vitamins. Experimental and computational approach |
title_full_unstemmed | Enhancing the inhibition and adsorption performance of SABIC iron corrosion in sulfuric acid by expired vitamins. Experimental and computational approach |
title_short | Enhancing the inhibition and adsorption performance of SABIC iron corrosion in sulfuric acid by expired vitamins. Experimental and computational approach |
title_sort | enhancing the inhibition and adsorption performance of sabic iron corrosion in sulfuric acid by expired vitamins. experimental and computational approach |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9033165/ https://www.ncbi.nlm.nih.gov/pubmed/35479718 http://dx.doi.org/10.1039/d1ra01010g |
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