| Corrosion protection of stainless steel by separate polypyrrole electrode in acid solutions |
| J. Hu; H. Zhu; Y. Ma; T. Yi; X. Mao; A. Lin; F. Gan
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| 2011
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| 发表期刊 | Materials and Corrosion-Werkstoffe Und Korrosion
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| ISSN | 0947-5117
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| 卷号 | 62期号:1页码:68-73 |
| 摘要 | Galvanic anodic protection (GAP) of stainless steels by doped polypyrrole (PPy) was investigated using chemically synthesized PPy. Separate PPy powder-pressed electrodes with different surface areas were prepared. Electrochemical properties of PPy electrodes were studied by open circuit potentials (OCPs) and potentiostatic polarization. PPy powder-pressed electrodes were coupled with 410-stainless steel electrodes in different concentrations of sulfuric acid solutions, 5 M phosphoric acid solution, and industrial phosphoric acid solution (5 M phosphoric acid + 0.05% chloride ion). Remarkable shift of OCP to the positive direction and sharp decrease of corrosion rate were observed during the coupling experiments, which implies that 410-stainless steel was transferred to passive state. Results also showed that PPy electrode with sufficient surface area can provide corrosion protection to 410-stainless steel electrode in highly corrosive acid solution. Based on the experiment results, GAP provided by PPy and PANi (synthesized under similar conditions) was compared. |
| 部门归属 | [gan, f.] state key labs corros & protect met, shenyang 110015, peoples r china. [hu, j.; zhu, h.; ma, y.; yi, t.; mao, x.; lin, a.; gan, f.] wuhan univ, sch resource & environm sci, dept environm engn, wuhan 430072, peoples r china.;hu, j (reprint author), delft univ technol, dept mat & environm, fac civil engn & geosci, microlab, stevinweg 1, nl-2628 cn delft, netherlands;dioxin727@hotmail.com fxgan88@163.com
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| 关键词 | Galvanic Anodic Protection
Organic Metal Polyaniline
Coated
Mild-steel
Conducting Polymers
Doped Polyaniline
Ferrous-metals
Carbon-steel
Coatings
Iron
Passivation
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| URL | 查看原文
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/30393
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| 专题 | 中国科学院金属研究所
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推荐引用方式
GB/T 7714 |
J. Hu,H. Zhu,Y. Ma,et al. Corrosion protection of stainless steel by separate polypyrrole electrode in acid solutions[J]. Materials and Corrosion-Werkstoffe Und Korrosion,2011,62(1):68-73.
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| APA |
J. Hu.,H. Zhu.,Y. Ma.,T. Yi.,X. Mao.,...&F. Gan.(2011).Corrosion protection of stainless steel by separate polypyrrole electrode in acid solutions.Materials and Corrosion-Werkstoffe Und Korrosion,62(1),68-73.
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| MLA |
J. Hu,et al."Corrosion protection of stainless steel by separate polypyrrole electrode in acid solutions".Materials and Corrosion-Werkstoffe Und Korrosion 62.1(2011):68-73.
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