| Sour corrosion of C1018 carbon steel and its inhibition by 1-benzylimidazole: electrochemical, SEM, FTIR and computational assessment | |
| Onyeachu, Ikenna B.1,2; Njoku, Demian, I2,3; Kaya, Savas4; El Ibrahimi, Brahim5; Nnadozie, C. Fortee6 | |
| Corresponding Author | Onyeachu, Ikenna B.(benonyeachu@gmail.com) |
| 2021-06-14 | |
| Source Publication | JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
 |
| ISSN | 0169-4243 |
| Pages | 21 |
| Abstract | The sour corrosion of C1018 carbon steel in CO2-saturated 3.5% NaCl + 100 ppm H2S solution and its inhibition by a low-toxic molecule, 1-benzylimidazole (1-Benz), has been investigated. Electrochemical impedance spectroscopy (EIS) results reveal that 1-Benz can form a strongly-adsorbed and highly protective inhibitor layer on the steel surface. Potentiodynamic polarization (PDP) results confirm that 1-Benz is a mixed-type corrosion inhibitor with slightly more anodic tendency. An optimum concentration of 150 ppm provided up to 83% inhibition efficiency. Based on FTIR characterization, 1-Benz interacts with the steel surface using its nitrogen atom and C=C pi-electrons and it adsorbs following the Temkin isotherm. The adsorption reduces localized corrosion, according to SEM-EDX observations. Theoretical parameters confirm that the electron-rich imidazole N atoms and electron-deficient C atoms in the phenyl ring ensure easy electron transfer between 1-Benz and the steel surface. |
| Keyword | Sour corrosion carbon steel imidazole DFT EIS FTIR |
| Funding Organization | World Bank Africa Centers of Excellence for Impact (ACE Impact) Project |
| DOI | 10.1080/01694243.2021.1938474 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | World Bank Africa Centers of Excellence for Impact (ACE Impact) Project[NUC/ES/507/1/304] |
| WOS Research Area | Engineering ; Materials Science ; Mechanics |
| WOS Subject | Engineering, Chemical ; Materials Science, Multidisciplinary ; Mechanics |
| WOS ID | WOS:000661718900001 |
| Publisher | TAYLOR & FRANCIS LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/160464 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Onyeachu, Ikenna B. |
| Affiliation | 1.Edo State Univ Uzairue, Dept Ind Chem, Uzairue, Edo State, Nigeria 2.Fed Univ Technol Owerri, Africa Ctr Excellence Future Energies & Electroch, Owerri, Nigeria 3.Chinese Acad Sci, Ctr Corros & Protect Mat, Inst Met Res, Shenyang, Peoples R China 4.Sivas Cumhuriyet Univ Hlth Serv Vocat Sch, Dept Chem, Sivas, Turkey 5.Univ Ibn Zohr, Fac Sci, Dept Chem, Agadir, Morocco 6.Fed Univ Technol Owerri, Dept Chem, Owerri, Nigeria |
| Recommended Citation GB/T 7714 | Onyeachu, Ikenna B.,Njoku, Demian, I,Kaya, Savas,et al. Sour corrosion of C1018 carbon steel and its inhibition by 1-benzylimidazole: electrochemical, SEM, FTIR and computational assessment[J]. JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY,2021:21. |
| APA | Onyeachu, Ikenna B.,Njoku, Demian, I,Kaya, Savas,El Ibrahimi, Brahim,&Nnadozie, C. Fortee.(2021).Sour corrosion of C1018 carbon steel and its inhibition by 1-benzylimidazole: electrochemical, SEM, FTIR and computational assessment.JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY,21. |
| MLA | Onyeachu, Ikenna B.,et al."Sour corrosion of C1018 carbon steel and its inhibition by 1-benzylimidazole: electrochemical, SEM, FTIR and computational assessment".JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY (2021):21. |
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