The Corrosion Inhibition Performance of Eco-Friendly <i>bis</i>-Schiff Bases on Carbon Steel in a Hydrochloric Solution
Corrosion inhibitors are widely used as an important tool for the prevention and remediation of different materials exposed to corrosive industrial processes. Corrosion inhibitors are usually added to acid pickling solutions to reduce the deterioration of metallic materials and particularly, corrosi...
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| Format: | Article |
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MDPI AG
2023-12-01
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| Series: | Surfaces |
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| Online Access: | https://www.mdpi.com/2571-9637/6/4/34 |
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| author | Arthur Valbon Neubi F. Xavier Mariana F. L. P. Carlos Glauco F. Bauerfeldt Francisco W. Q. Almeida-Neto Pedro de Lima-Neto Marcelo A. Neves Cláudio E. Rodrigues-Santos Aurea Echevarria |
| author_facet | Arthur Valbon Neubi F. Xavier Mariana F. L. P. Carlos Glauco F. Bauerfeldt Francisco W. Q. Almeida-Neto Pedro de Lima-Neto Marcelo A. Neves Cláudio E. Rodrigues-Santos Aurea Echevarria |
| author_sort | Arthur Valbon |
| collection | DOAJ |
| description | Corrosion inhibitors are widely used as an important tool for the prevention and remediation of different materials exposed to corrosive industrial processes. Corrosion inhibitors are usually added to acid pickling solutions to reduce the deterioration of metallic materials and particularly, corrosion due to hydrochloric acid. In this work, three <i>bis</i>-Schiff bases (BS2, BS4 and BS8) were synthesized and characterized using spectroscopic methods, and their anti-corrosive effects on AISI 1020 carbon steel in a hydrochloric acid solution were studied using gravimetric and electrochemical techniques and quantum chemical methods. The results showed that all substances act as potential corrosion inhibitors as BS8 exhibited the highest efficiency (98%) of all methods. The compounds adsorbed on the metal surface were as per the El-Awady adsorption isotherm. Morphological aspects of the metal were observed upon applying SEM, and the theoretical results acquired from the quantum chemical calculation for molecular properties and the Fe(110) surface adsorption proved to be compatible with the experimental results. |
| first_indexed | 2024-03-08T20:20:42Z |
| format | Article |
| id | doaj.art-134096d7f620465680e3952b937cdfa8 |
| institution | Directory Open Access Journal |
| issn | 2571-9637 |
| language | English |
| last_indexed | 2024-03-08T20:20:42Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Surfaces |
| spelling | doaj.art-134096d7f620465680e3952b937cdfa82023-12-22T14:43:27ZengMDPI AGSurfaces2571-96372023-12-016450953210.3390/surfaces6040034The Corrosion Inhibition Performance of Eco-Friendly <i>bis</i>-Schiff Bases on Carbon Steel in a Hydrochloric SolutionArthur Valbon0Neubi F. Xavier1Mariana F. L. P. Carlos2Glauco F. Bauerfeldt3Francisco W. Q. Almeida-Neto4Pedro de Lima-Neto5Marcelo A. Neves6Cláudio E. Rodrigues-Santos7Aurea Echevarria8Institute of Chemistry, Federal Rural University of Rio de Janeiro, Seropédica 23890-000, RJ, BrazilInstitute of Chemistry, Federal Rural University of Rio de Janeiro, Seropédica 23890-000, RJ, BrazilInstitute of Chemistry, Federal Rural University of Rio de Janeiro, Seropédica 23890-000, RJ, BrazilInstitute of Chemistry, Federal Rural University of Rio de Janeiro, Seropédica 23890-000, RJ, BrazilDepartment of Analytic Chemistry and Physical-Chemistry, Center of Sciences, Federal University of Ceará, Campus of Pici, Fortaleza 60440-900, CE, BrazilDepartment of Analytic Chemistry and Physical-Chemistry, Center of Sciences, Federal University of Ceará, Campus of Pici, Fortaleza 60440-900, CE, BrazilInstitute of Physics, Federal Rural University of Rio de Janeiro, Seropédica 23890-000, RJ, BrazilInstitute of Chemistry, Federal Rural University of Rio de Janeiro, Seropédica 23890-000, RJ, BrazilInstitute of Chemistry, Federal Rural University of Rio de Janeiro, Seropédica 23890-000, RJ, BrazilCorrosion inhibitors are widely used as an important tool for the prevention and remediation of different materials exposed to corrosive industrial processes. Corrosion inhibitors are usually added to acid pickling solutions to reduce the deterioration of metallic materials and particularly, corrosion due to hydrochloric acid. In this work, three <i>bis</i>-Schiff bases (BS2, BS4 and BS8) were synthesized and characterized using spectroscopic methods, and their anti-corrosive effects on AISI 1020 carbon steel in a hydrochloric acid solution were studied using gravimetric and electrochemical techniques and quantum chemical methods. The results showed that all substances act as potential corrosion inhibitors as BS8 exhibited the highest efficiency (98%) of all methods. The compounds adsorbed on the metal surface were as per the El-Awady adsorption isotherm. Morphological aspects of the metal were observed upon applying SEM, and the theoretical results acquired from the quantum chemical calculation for molecular properties and the Fe(110) surface adsorption proved to be compatible with the experimental results.https://www.mdpi.com/2571-9637/6/4/34carbon steelcorrosion inhibitorselectrochemical methodsacidic corrosiontheoretical calculations |
| spellingShingle | Arthur Valbon Neubi F. Xavier Mariana F. L. P. Carlos Glauco F. Bauerfeldt Francisco W. Q. Almeida-Neto Pedro de Lima-Neto Marcelo A. Neves Cláudio E. Rodrigues-Santos Aurea Echevarria The Corrosion Inhibition Performance of Eco-Friendly <i>bis</i>-Schiff Bases on Carbon Steel in a Hydrochloric Solution Surfaces carbon steel corrosion inhibitors electrochemical methods acidic corrosion theoretical calculations |
| title | The Corrosion Inhibition Performance of Eco-Friendly <i>bis</i>-Schiff Bases on Carbon Steel in a Hydrochloric Solution |
| title_full | The Corrosion Inhibition Performance of Eco-Friendly <i>bis</i>-Schiff Bases on Carbon Steel in a Hydrochloric Solution |
| title_fullStr | The Corrosion Inhibition Performance of Eco-Friendly <i>bis</i>-Schiff Bases on Carbon Steel in a Hydrochloric Solution |
| title_full_unstemmed | The Corrosion Inhibition Performance of Eco-Friendly <i>bis</i>-Schiff Bases on Carbon Steel in a Hydrochloric Solution |
| title_short | The Corrosion Inhibition Performance of Eco-Friendly <i>bis</i>-Schiff Bases on Carbon Steel in a Hydrochloric Solution |
| title_sort | corrosion inhibition performance of eco friendly i bis i schiff bases on carbon steel in a hydrochloric solution |
| topic | carbon steel corrosion inhibitors electrochemical methods acidic corrosion theoretical calculations |
| url | https://www.mdpi.com/2571-9637/6/4/34 |
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