Effect of conducting composite polypyrrole/polyaniline coatings on the corrosion resistance of type 304 stainless steel for bipolar plates of proton-exchange membrane fuel cells
文献类型：期刊论文
| 作者 | Y. J. Ren ; C. L. Zeng |
| 刊名 | Journal of Power Sources
 |
| 出版日期 | 2008 |
| 卷号 | 182期号:2页码:524-530 |
| 关键词 | PEMFC stainless steel bipolar plates bilayer conducting polypyrrole/polyaniline coatings HCl solution corrosion electrical contact resistance coated stainless-steel polypyrrole coatings mild-steel protection behavior pemfc films iron |
| ISSN号 | 0378-7753 |
| 中文摘要 | A bilayer conducting polymer coating composed of an inner layer of polypyrrole (Ppy) with large dode-cylsulfate ionic groups obtained by galvanostatic deposition, and an external polyaniline (Pani) layer with Small SO42- groups obtained by cyclic voltammetric deposition was prepared to protect type 304 stainless steel used for bipolar plates of a proton-exchange membrane fuel cell. The corrosion performance of the bare and coated steel in 0.3 M HCl was examined by electrochemical impedance spectroscopy, polarization and open-circuit potential measurements. The experimental results indicated that both the composite Ppy/Pani coatings and the single Ppy coatings increased the corrosion potential of the bare steel by more than 400mV (saturated calomel electrode), and increased the pitting corrosion potential by more than 500 mV (saturated calomel electrode). The bilayer coatings could reduce the corrosion of the alloy much more effectively than the single Ppy coatings, serving as a physical barrier and providing passivity protection, with acceptable contact resistance. (c) 2008 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/33063]  |
| 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. J. Ren,C. L. Zeng. Effect of conducting composite polypyrrole/polyaniline coatings on the corrosion resistance of type 304 stainless steel for bipolar plates of proton-exchange membrane fuel cells[J]. Journal of Power Sources,2008,182(2):524-530. |
| APA | Y. J. Ren,&C. L. Zeng.(2008).Effect of conducting composite polypyrrole/polyaniline coatings on the corrosion resistance of type 304 stainless steel for bipolar plates of proton-exchange membrane fuel cells.Journal of Power Sources,182(2),524-530. |
| MLA | Y. J. Ren,et al."Effect of conducting composite polypyrrole/polyaniline coatings on the corrosion resistance of type 304 stainless steel for bipolar plates of proton-exchange membrane fuel cells".Journal of Power Sources 182.2(2008):524-530. |
入库方式： OAI收割
来源：金属研究所
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