Investigation into designed current oscillations during anodic dissolution of Al in NaCl+NaNO2 solutions
文献类型：期刊论文
| 作者 | L. Li ; C. Wang ; S. Chen |
| 刊名 | Electrochimica Acta
 |
| 出版日期 | 2007 |
| 卷号 | 53期号:4页码:1655-1662 |
| 关键词 | Al electrodissolution current oscillations pitting NaCl+NaNO2 point-defect model electrochemical-behavior pitting corrosion oxide-films aluminum iron electrodissolution electrolyte oxidation kinetics |
| ISSN号 | 0013-4686 |
| 中文摘要 | We previously proposed that current oscillations occurred when there were both an active factor and a passive factor that depended on each other and influenced the anodic dissolution processes of metallic materials alternatively. In this study, an electrochemical system, Al vertical bar NaCl + NaNO2, was designed to verify this proposal. The chloride ions are aggressive ions (active factor), assisting the dissolution of the oxide film, while nitrite ions are inhibitive ones (passive factor), assisting the formation of the oxide film. The dissolution and the formation of the oxide film on the surface of the Al electrode occurred alternatively, and the current oscillations were observed to occur in this system, which proved the above point. The Al NaCl + NaNO2 system is a new electrochemical oscillator, in which hydrogen evolves periodically from the surface of the electrode during the current oscillations. The results were discussed in terms of the formation and the dissolution of the oxide film. The current oscillations were induced by pitting corrosion of Al in chloride ions containing solutions. It is expected that more oscillatory systems can be found and further studies into the nonlinear dynamic behaviour of metallic materials can be conducted in the light of the proposal. (c) 2007 Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/33641]  |
| 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. Li,C. Wang,S. Chen. Investigation into designed current oscillations during anodic dissolution of Al in NaCl+NaNO2 solutions[J]. Electrochimica Acta,2007,53(4):1655-1662. |
| APA | L. Li,C. Wang,&S. Chen.(2007).Investigation into designed current oscillations during anodic dissolution of Al in NaCl+NaNO2 solutions.Electrochimica Acta,53(4),1655-1662. |
| MLA | L. Li,et al."Investigation into designed current oscillations during anodic dissolution of Al in NaCl+NaNO2 solutions".Electrochimica Acta 53.4(2007):1655-1662. |
入库方式： OAI收割
来源：金属研究所
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