Investigation of some new triazole derivatives for inhibiting the acid corrosion of C1018 carbon steel: Correlation of electrochemical studies with quantum chemical calculations
Iron and alloys of iron are commonly used in industries for various purposes. Despite their toughness, they are prone to corrosion. A common way to protect metallic components from corrosion is the use of pyridine inhibitors. Hence, two new triazole derivatives, ethyl{[5-(pyridin-4-yl)-4H-1,2,4-tria...
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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 |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1026918523000136 |
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| author | N. Phadke Swathi Seranthimata Samshuddin Talal A. Aljohani Kedila Rasheeda Vijaya D. P. Alva Irshad Baig Nujud Maslamani Aeshah Hassan Alamri |
| author_facet | N. Phadke Swathi Seranthimata Samshuddin Talal A. Aljohani Kedila Rasheeda Vijaya D. P. Alva Irshad Baig Nujud Maslamani Aeshah Hassan Alamri |
| author_sort | N. Phadke Swathi |
| collection | DOAJ |
| description | Iron and alloys of iron are commonly used in industries for various purposes. Despite their toughness, they are prone to corrosion. A common way to protect metallic components from corrosion is the use of pyridine inhibitors. Hence, two new triazole derivatives, ethyl{[5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetate (EPT) and 2-({[5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}methyl)-1H-benzimidazole (PTB) have been synthesised and the formation of compounds were confirmed by spectral data. The inhibition efficacy of both the inhibitors on C1018 metal in 1 M HCl were examined by electrochemical techniques. The results proved the anticorrosive ability of EPT and PTB with inhibition efficiency of 92% and 94%, respectively. Meanwhile, current density decreased from 1330 µA/cm2 to 106 µA/cm2 for EPT and 79.5 µA/cm2 for PTB with an increase in inhibitor concentration. Further, both of the triazole derivatives behaved as mixed type inhibitors through the Langmuir adsorption mechanism. Surface morphological analysis gave further proof for the higher adsorbing ability of these triazole derivatives on the metallic surface. The above experimental investigations were validated by performing quantum chemical calculations. The results of theoretical methods indicated the effectiveness of EPT and PTB for protecting the metal from acid corrosion. |
| first_indexed | 2024-04-10T15:52:09Z |
| format | Article |
| id | doaj.art-ce3a3e11b7d441d0848be003a6d86d3e |
| institution | Directory Open Access Journal |
| issn | 1026-9185 |
| language | English |
| last_indexed | 2024-04-10T15:52:09Z |
| publishDate | 2023-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | South African Journal of Chemical Engineering |
| spelling | doaj.art-ce3a3e11b7d441d0848be003a6d86d3e2023-02-11T04:15:12ZengElsevierSouth African Journal of Chemical Engineering1026-91852023-04-0144123134Investigation of some new triazole derivatives for inhibiting the acid corrosion of C1018 carbon steel: Correlation of electrochemical studies with quantum chemical calculationsN. Phadke Swathi0Seranthimata Samshuddin1Talal A. Aljohani2Kedila Rasheeda3Vijaya D. P. Alva4Irshad Baig5Nujud Maslamani6Aeshah Hassan Alamri7Department of Chemistry, Sri Dharmasthala Manjunatheshwara Institute of Technology, Ujire – 574240 and affiliated to Visvesvaraya Technological University, Belagavi, Karnataka, IndiaDepartment of Chemistry, Sri Dharmasthala Manjunatheshwara Institute of Technology, Ujire – 574240 and affiliated to Visvesvaraya Technological University, Belagavi, Karnataka, IndiaMaterials Science Research Institute, King Abdulaziz City for Science and Technology (KACST), Riyadh, 11442, Saudi ArabiaDepartment of Chemistry, Shree Devi Institute of Technology, Kenjar, Mangalore - 574142 and affiliated to Visvesvaraya Technological University, Belagavi, Karnataka, IndiaDepartment of Chemistry, Shree Devi Institute of Technology, Kenjar, Mangalore - 574142 and affiliated to Visvesvaraya Technological University, Belagavi, Karnataka, India; Corresponding authors.Basic & Applied Scientific Research Center, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam, 31441, Saudi ArabiaChemistry Department, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 76971, Dammam 31441, Saudi ArabiaChemistry Department, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 76971, Dammam 31441, Saudi Arabia; Corresponding authors.Iron and alloys of iron are commonly used in industries for various purposes. Despite their toughness, they are prone to corrosion. A common way to protect metallic components from corrosion is the use of pyridine inhibitors. Hence, two new triazole derivatives, ethyl{[5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetate (EPT) and 2-({[5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}methyl)-1H-benzimidazole (PTB) have been synthesised and the formation of compounds were confirmed by spectral data. The inhibition efficacy of both the inhibitors on C1018 metal in 1 M HCl were examined by electrochemical techniques. The results proved the anticorrosive ability of EPT and PTB with inhibition efficiency of 92% and 94%, respectively. Meanwhile, current density decreased from 1330 µA/cm2 to 106 µA/cm2 for EPT and 79.5 µA/cm2 for PTB with an increase in inhibitor concentration. Further, both of the triazole derivatives behaved as mixed type inhibitors through the Langmuir adsorption mechanism. Surface morphological analysis gave further proof for the higher adsorbing ability of these triazole derivatives on the metallic surface. The above experimental investigations were validated by performing quantum chemical calculations. The results of theoretical methods indicated the effectiveness of EPT and PTB for protecting the metal from acid corrosion.http://www.sciencedirect.com/science/article/pii/S10269185230001361,2,4-Triazole derivativesCorrosion inhibitionQuantum chemical studiesSurface morphology |
| spellingShingle | N. Phadke Swathi Seranthimata Samshuddin Talal A. Aljohani Kedila Rasheeda Vijaya D. P. Alva Irshad Baig Nujud Maslamani Aeshah Hassan Alamri Investigation of some new triazole derivatives for inhibiting the acid corrosion of C1018 carbon steel: Correlation of electrochemical studies with quantum chemical calculations South African Journal of Chemical Engineering 1,2,4-Triazole derivatives Corrosion inhibition Quantum chemical studies Surface morphology |
| title | Investigation of some new triazole derivatives for inhibiting the acid corrosion of C1018 carbon steel: Correlation of electrochemical studies with quantum chemical calculations |
| title_full | Investigation of some new triazole derivatives for inhibiting the acid corrosion of C1018 carbon steel: Correlation of electrochemical studies with quantum chemical calculations |
| title_fullStr | Investigation of some new triazole derivatives for inhibiting the acid corrosion of C1018 carbon steel: Correlation of electrochemical studies with quantum chemical calculations |
| title_full_unstemmed | Investigation of some new triazole derivatives for inhibiting the acid corrosion of C1018 carbon steel: Correlation of electrochemical studies with quantum chemical calculations |
| title_short | Investigation of some new triazole derivatives for inhibiting the acid corrosion of C1018 carbon steel: Correlation of electrochemical studies with quantum chemical calculations |
| title_sort | investigation of some new triazole derivatives for inhibiting the acid corrosion of c1018 carbon steel correlation of electrochemical studies with quantum chemical calculations |
| topic | 1,2,4-Triazole derivatives Corrosion inhibition Quantum chemical studies Surface morphology |
| url | http://www.sciencedirect.com/science/article/pii/S1026918523000136 |
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