Sour corrosion of C1018 carbon steel and its inhibition by 1-benzylimidazole: electrochemical, SEM, FTIR and computational assessment
文献类型：期刊论文
| 作者 | Onyeachu, Ikenna B.2,3; Njoku, Demian, I3,4; Kaya, Savas5; El Ibrahimi, Brahim6; Nnadozie, C. Fortee1 |
| 刊名 | JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2021-06-14 |
| 页码 | 21 |
| 关键词 | Sour corrosion carbon steel imidazole DFT EIS FTIR |
| ISSN号 | 0169-4243 |
| DOI | 10.1080/01694243.2021.1938474 |
| 通讯作者 | Onyeachu, Ikenna B.(benonyeachu@gmail.com) |
| 英文摘要 | 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. |
| 资助项目 | World Bank Africa Centers of Excellence for Impact (ACE Impact) Project[NUC/ES/507/1/304] |
| WOS研究方向 | Engineering ; Materials Science ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000661718900001 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 资助机构 | World Bank Africa Centers of Excellence for Impact (ACE Impact) Project |
| 源URL | [http://ir.imr.ac.cn/handle/321006/160463]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Onyeachu, Ikenna B. |
| 作者单位 | 1.Fed Univ Technol Owerri, Dept Chem, Owerri, Nigeria 2.Edo State Univ Uzairue, Dept Ind Chem, Uzairue, Edo State, Nigeria 3.Fed Univ Technol Owerri, Africa Ctr Excellence Future Energies & Electroch, Owerri, Nigeria 4.Chinese Acad Sci, Ctr Corros & Protect Mat, Inst Met Res, Shenyang, Peoples R China 5.Sivas Cumhuriyet Univ Hlth Serv Vocat Sch, Dept Chem, Sivas, Turkey 6.Univ Ibn Zohr, Fac Sci, Dept Chem, Agadir, Morocco |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：金属研究所
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