Electrochemical and molecular simulation studies on the corrosion inhibition of 5,10,15,20-tetraphenylporphyrin adlayers on iron surface
文献类型：期刊论文
| 作者 | Y. Y. Feng ; S. H. Chen ; W. J. Guo ; G. Z. Liu ; H. F. Ma ; L. Wu |
| 刊名 | Applied Surface Science
 |
| 出版日期 | 2007 |
| 卷号 | 253期号:21页码:8734-8742 |
| 关键词 | adlayers tetraphenylporphyrin XPS FT-IR EIS molecular simulation self-assembled monolayers m hcl solutions mild-steel electrocatalytic reduction copper corrosion au(111) surface gold films protection octaethylporphyrin |
| ISSN号 | 0169-4332 |
| 中文摘要 | 5,10,15,20-Tetraphenylporphyrin (TPP) was synthesized and self-assembled on iron surface to form adlayers. Some surface analysis techniques such as XPS, FT-IR and SEM were performed to characterize the adlayers. The corrosion inhibition ability was investigated by using the technique of electrochemical impedance spectroscopy (EIS) and polarization curves in 0.5 M H2SO4. Results showed that the presence of the porphyrin adlayers was able to protect iron from corrosion effectively and longer immersion time would lead to better inhibition performance. In addition, molecular simulation studies were applied to optimize the adsorption structures of TPP molecules on iron surface. Calculated results indicated that the middle macrocycle of the TPP molecules assumed a nearly flat orientation with respect to the iron surface and the four centrosymmetric benzene rings were tilted by 44.8 degrees and 58.8 degrees because of the steric hindrance effect. (c) 2007 Published by Elsevier B.V. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/33535]  |
| 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 | Y. Y. Feng,S. H. Chen,W. J. Guo,et al. Electrochemical and molecular simulation studies on the corrosion inhibition of 5,10,15,20-tetraphenylporphyrin adlayers on iron surface[J]. Applied Surface Science,2007,253(21):8734-8742. |
| APA | Y. Y. Feng,S. H. Chen,W. J. Guo,G. Z. Liu,H. F. Ma,&L. Wu.(2007).Electrochemical and molecular simulation studies on the corrosion inhibition of 5,10,15,20-tetraphenylporphyrin adlayers on iron surface.Applied Surface Science,253(21),8734-8742. |
| MLA | Y. Y. Feng,et al."Electrochemical and molecular simulation studies on the corrosion inhibition of 5,10,15,20-tetraphenylporphyrin adlayers on iron surface".Applied Surface Science 253.21(2007):8734-8742. |
入库方式： OAI收割
来源：金属研究所
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