A passivation mechanism of doped polyaniline on 410 stainless steel in deaerated H2SO4 solution
文献类型：期刊论文
| 作者 | L. Zhong ; H. Zhu ; J. Hu ; S. H. Xiao ; F. X. Gan |
| 刊名 | Electrochimica Acta
 |
| 出版日期 | 2006 |
| 卷号 | 51期号:25页码:5494-5501 |
| 关键词 | doped polyaniline stainless steel galvanic coupling passivation mechanism corrosion protection mild-steel conducting polymers stainless-steel coatings films anticorrosion performance inhibition behavior |
| ISSN号 | 0013-4686 |
| 中文摘要 | To investigate the role of polyaniline (PANI) in the corrosion protection of stainless steel (SS) in oxygen-deficient acidic solution, a separate doped PANI film electrode on a glass substrate was prepared and the test solution (1 M H2SO4) was purged with high-purity N-2 until dissolved oxygen level decreased more than two orders of magnitude. In this deaerated 1 M H2SO4 solution, the galvanic coupling interaction between the separate PANI film electrode and 410 SS was studied. Results reveal that the separate PANI film can passivate the 410 SS steadily for a long period of time. A variety of experimental methods including potentiodynamic measurement, potentiostatic (current-time) examination and X-ray photoelectron spectroscopy (XPS) are used to explore the mechanism by which the separate PANI film passivated the galvanic coupling SS in the deaerated sulfuric solution. These studies show that passivation is achieved because PANI film provides a large critical current at the early stage of coupling and a persistent passive current by its electrochemical dedoping/re-doping equilibrium activity with the acidic environment at the subsequent stage of coupling. (c) 2006 Elsevier Ltd. All riuhts reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34763]  |
| 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 | L. Zhong,H. Zhu,J. Hu,et al. A passivation mechanism of doped polyaniline on 410 stainless steel in deaerated H2SO4 solution[J]. Electrochimica Acta,2006,51(25):5494-5501. |
| APA | L. Zhong,H. Zhu,J. Hu,S. H. Xiao,&F. X. Gan.(2006).A passivation mechanism of doped polyaniline on 410 stainless steel in deaerated H2SO4 solution.Electrochimica Acta,51(25),5494-5501. |
| MLA | L. Zhong,et al."A passivation mechanism of doped polyaniline on 410 stainless steel in deaerated H2SO4 solution".Electrochimica Acta 51.25(2006):5494-5501. |
入库方式： OAI收割
来源：金属研究所
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