Effects of a small addition of Mn on the corrosion behaviour of Zn in a mixed solution
文献类型：期刊论文
| 作者 | B. Zhang ; H. B. Zhou ; E. H. Han ; W. Ke |
| 刊名 | Electrochimica Acta
 |
| 出版日期 | 2009 |
| 卷号 | 54期号:26页码:6598-6608 |
| 关键词 | Zn Mn addition Corrosion EIS XPS electrochemical impedance spectroscopy sodium-chloride solution alloy coatings electrodeposited zn protective ability alkaline-solutions doped zno zinc resistance steel |
| ISSN号 | 0013-4686 |
| 中文摘要 | The effects of a small addition of Mn (0.4 wt%) on the corrosion behaviour of pure Zn (99.995 wt%) in a mixed solution (0.1 M NaCl + 0.1 M Na(2)SO(4) + 0.01 M NaHCO(3), pH 8.4) were investigated by electrochemical impedance spectroscopy (EIS), potentiodynamic polarization and X-ray photoelectron spectroscopy (XPS). The electrochemical impedances of both Zn and Zn-0.4Mn have been successfully fitted with a suitable EIS equivalent circuit model. Fitted impedance results revealed that 0.4wt% Mn improved both the pore resistance and charge transfer resistance of Zn in the mixed solution. As a result, both anodic and cathodic reaction rates were reduced. X-ray photoelectron spectroscopy (XPS) analysis showed that the corrosion films formed in the mixed solution consisted of zinc oxide (ZnO), zinc hydroxide (Zn(OH)(2)) and zinc hydrozincite (Zn(5)(CO(3))(2)(OH)(6)). The role of small addition of Min is that it promotes the precipitation of hydrozincite in the pores of corrosion film. An "alleviation of local acidification" mechanism is proposed to explain the investigated results. (C) 2009 Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32524]  |
| 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 | B. Zhang,H. B. Zhou,E. H. Han,et al. Effects of a small addition of Mn on the corrosion behaviour of Zn in a mixed solution[J]. Electrochimica Acta,2009,54(26):6598-6608. |
| APA | B. Zhang,H. B. Zhou,E. H. Han,&W. Ke.(2009).Effects of a small addition of Mn on the corrosion behaviour of Zn in a mixed solution.Electrochimica Acta,54(26),6598-6608. |
| MLA | B. Zhang,et al."Effects of a small addition of Mn on the corrosion behaviour of Zn in a mixed solution".Electrochimica Acta 54.26(2009):6598-6608. |
入库方式： OAI收割
来源：金属研究所
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