Quebracho tannin as corrosion inhibitor in neutral media and novel rust conversion agent for enhanced corrosion protection
In the present work, the anticorrosive properties of quebracho tannins extract (QE) were tested in neutral solution to protect mild steel and a new rust conversion agent based on QE was developed. QE remarkably rich of total phenolic compounds (TPC) (2630.1 ± 11.43 mg gallic acid equivalent (GAE)/g)...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-04-01
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| Series: | South African Journal of Chemical Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1026918523000033 |
| _version_ | 1811175511774199808 |
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| author | Victoria Vorobyova Oleksiy Sikorsky Margarita Skiba Georgii Vasyliev |
| author_facet | Victoria Vorobyova Oleksiy Sikorsky Margarita Skiba Georgii Vasyliev |
| author_sort | Victoria Vorobyova |
| collection | DOAJ |
| description | In the present work, the anticorrosive properties of quebracho tannins extract (QE) were tested in neutral solution to protect mild steel and a new rust conversion agent based on QE was developed. QE remarkably rich of total phenolic compounds (TPC) (2630.1 ± 11.43 mg gallic acid equivalent (GAE)/g) and flavonoids (81.36±1.20 mg quercetin equivalent (QUE)/g) was revealed. QE have shown good antioxidant activity (75% and 68% DPPH and ABTS radical scavenging activities at 500 mg/L of QE, respectively). The inhibition corrosion process of steel in 3.5% NaCl solution by QE have been studied using potentiodynamic polarization and polarization resistance measurements. The steel surface is acquired by scanning electron microscopy (SEM). Density functional theory (DFT) was used to give further insight into the adsorption and inhibition mechanism of QE on the steel surface. A tannin primer was prepared and coated panels were tested in salt spray chamber. |
| first_indexed | 2024-04-10T19:37:07Z |
| format | Article |
| id | doaj.art-e1c6ea4e7fa54ab3bf8f8b8c46f38110 |
| institution | Directory Open Access Journal |
| issn | 1026-9185 |
| language | English |
| last_indexed | 2024-04-10T19:37:07Z |
| publishDate | 2023-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | South African Journal of Chemical Engineering |
| spelling | doaj.art-e1c6ea4e7fa54ab3bf8f8b8c46f381102023-01-30T04:12:49ZengElsevierSouth African Journal of Chemical Engineering1026-91852023-04-01446880Quebracho tannin as corrosion inhibitor in neutral media and novel rust conversion agent for enhanced corrosion protectionVictoria Vorobyova0Oleksiy Sikorsky1Margarita Skiba2Georgii Vasyliev3National Technical University of Ukraine ''Igor Sikorsky Kyiv Polytechnic Institute'', Kyiv, Ukraine; Corresponding author.National Technical University of Ukraine ''Igor Sikorsky Kyiv Polytechnic Institute'', Kyiv, UkraineUkrainian State University of Chemical Technology, Dnipro, UkraineNational Technical University of Ukraine ''Igor Sikorsky Kyiv Polytechnic Institute'', Kyiv, UkraineIn the present work, the anticorrosive properties of quebracho tannins extract (QE) were tested in neutral solution to protect mild steel and a new rust conversion agent based on QE was developed. QE remarkably rich of total phenolic compounds (TPC) (2630.1 ± 11.43 mg gallic acid equivalent (GAE)/g) and flavonoids (81.36±1.20 mg quercetin equivalent (QUE)/g) was revealed. QE have shown good antioxidant activity (75% and 68% DPPH and ABTS radical scavenging activities at 500 mg/L of QE, respectively). The inhibition corrosion process of steel in 3.5% NaCl solution by QE have been studied using potentiodynamic polarization and polarization resistance measurements. The steel surface is acquired by scanning electron microscopy (SEM). Density functional theory (DFT) was used to give further insight into the adsorption and inhibition mechanism of QE on the steel surface. A tannin primer was prepared and coated panels were tested in salt spray chamber.http://www.sciencedirect.com/science/article/pii/S1026918523000033Green corrosion inhibitorsRust conversion agentAntioxidantCoating |
| spellingShingle | Victoria Vorobyova Oleksiy Sikorsky Margarita Skiba Georgii Vasyliev Quebracho tannin as corrosion inhibitor in neutral media and novel rust conversion agent for enhanced corrosion protection South African Journal of Chemical Engineering Green corrosion inhibitors Rust conversion agent Antioxidant Coating |
| title | Quebracho tannin as corrosion inhibitor in neutral media and novel rust conversion agent for enhanced corrosion protection |
| title_full | Quebracho tannin as corrosion inhibitor in neutral media and novel rust conversion agent for enhanced corrosion protection |
| title_fullStr | Quebracho tannin as corrosion inhibitor in neutral media and novel rust conversion agent for enhanced corrosion protection |
| title_full_unstemmed | Quebracho tannin as corrosion inhibitor in neutral media and novel rust conversion agent for enhanced corrosion protection |
| title_short | Quebracho tannin as corrosion inhibitor in neutral media and novel rust conversion agent for enhanced corrosion protection |
| title_sort | quebracho tannin as corrosion inhibitor in neutral media and novel rust conversion agent for enhanced corrosion protection |
| topic | Green corrosion inhibitors Rust conversion agent Antioxidant Coating |
| url | http://www.sciencedirect.com/science/article/pii/S1026918523000033 |
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