Influence of Iron Microstructure on Corrosion Inhibitor Performance in Acidic Media
文献类型：期刊论文
| 作者 | E. E. Oguzie ; S. G. Wang ; Y. Li ; F. H. Wang |
| 刊名 | Journal of Physical Chemistry C
 |
| 出版日期 | 2009 |
| 卷号 | 113期号:19页码:8420-8429 |
| 关键词 | nanocrystalline ingot iron universal force-field mild-steel corrosion sulfuric-acid electrochemical corrosion sulfate-solution behavior thiourea derivatives molecules |
| ISSN号 | 1932-7447 |
| 中文摘要 | Electrochemical measurements employing ac and dc techniques as well as atomic force microscopy were used to study the electrochemical corrosion behavior of ingot iron with two different microstructures: conventional polycrystalline ingot iron (CPII) and bulk nanocrystalline ingot iron (BNII) fabricated from CPII by severe rolling, without and with inhibitors. The corrosive media was 0.1 M H(2)SO(4) solution, while thiourea (TU) was employed as inhibitor, with a concentration of 5.0 mM, as well as a 1:1 combination of TU and KI. Impedance and polarization results show that BNII was more susceptible to corrosion in the uninhibited acid. The presence of TU improved the corrosion resistance of both specimens comparably, while KI reduced the inhibition efficiency of TU. Infrared spectrophotometry revealed that the interfacial species for CPII and BNII in the presence of TU were quite identical and markedly different from that in TU + KI. Molecular dynamics (MD) simulations were performed to illustrate the adsorption process of TU at a molecular level, and the theoretical predictions showed good agreement with the electrochemical results. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32221]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | E. E. Oguzie,S. G. Wang,Y. Li,et al. Influence of Iron Microstructure on Corrosion Inhibitor Performance in Acidic Media[J]. Journal of Physical Chemistry C,2009,113(19):8420-8429. |
| APA | E. E. Oguzie,S. G. Wang,Y. Li,&F. H. Wang.(2009).Influence of Iron Microstructure on Corrosion Inhibitor Performance in Acidic Media.Journal of Physical Chemistry C,113(19),8420-8429. |
| MLA | E. E. Oguzie,et al."Influence of Iron Microstructure on Corrosion Inhibitor Performance in Acidic Media".Journal of Physical Chemistry C 113.19(2009):8420-8429. |
入库方式： OAI收割
来源：金属研究所
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