Institutional Repository of Key Laboratory of Marine Environmental Corrosion and Bio-fouling, IOCAS
| Corrosion of carbon steel influenced by anaerobic biofilm in natural seawater | |
| Duan, Jizhou1; Wu, Suru1; Zhang, Xiaojun1; Huang, Guiqiao2; Du, Min3; Hou, Baorong1 | |
| 2008-12-01 | |
| 发表期刊 | ELECTROCHIMICA ACTA
 |
| ISSN | 0013-4686 |
| 卷号 | 54期号:1页码:22-28 |
| 文章类型 | Article |
| 摘要 | The bacteria in the anaerobic biofilm on rusted carbon steel immersed in natural seawater were characterized by culturing and molecular biology techniques. Two types of anaerobic bacterium, sulfate-reducing bacteria (SRB) Desulfovibrio caledoniensis and iron-reducing bacteria Clostridium sp. uncultured were found. The compositions of the rust layer were also analyzed and we found that iron oxide and sulfate green rust were the major components. To investigate the corrosion mechanisms, electrochemical impedance spectra was obtained based on the isolated sulfate-reducing bacteria and mixed bacteria cultured from rust layer in laboratory culture conditions. We found that single species produced iron sulfide and accelerated corrosion, but mixed species produced sulfate green rust and inhibited corrosion. The anaerobic corrosion mechanism of steel was proposed and its environmental significance was discussed. (c) 2008 Elsevier Ltd. All rights reserved.; The bacteria in the anaerobic biofilm on rusted carbon steel immersed in natural seawater were characterized by culturing and molecular biology techniques. Two types of anaerobic bacterium, sulfate-reducing bacteria (SRB) Desulfovibrio caledoniensis and iron-reducing bacteria Clostridium sp. uncultured were found. The compositions of the rust layer were also analyzed and we found that iron oxide and sulfate green rust were the major components. To investigate the corrosion mechanisms, electrochemical impedance spectra was obtained based on the isolated sulfate-reducing bacteria and mixed bacteria cultured from rust layer in laboratory culture conditions. We found that single species produced iron sulfide and accelerated corrosion, but mixed species produced sulfate green rust and inhibited corrosion. The anaerobic corrosion mechanism of steel was proposed and its environmental significance was discussed. (c) 2008 Elsevier Ltd. All rights reserved. |
| 关键词 | Anaerobic Corrosion Sulfate-reducing Bacteria Iron-reducing Bacteria Iron Sulfide Green Rust Eis |
| 学科领域 | Electrochemistry |
| DOI | 10.1016/j.electacta.2008.04.085 |
| URL | 查看原文 |
| 收录类别 | ISTP ; SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000260729900005 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/5156 |
| 专题 | 海洋环境腐蚀与生物污损重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Qingdao Marine Corros Inst, Qingdao 266071, Peoples R China 3.Ocean Univ China, Coll Chem & Chem Engn, Qingdao 266003, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Duan, Jizhou,Wu, Suru,Zhang, Xiaojun,et al. Corrosion of carbon steel influenced by anaerobic biofilm in natural seawater[J]. ELECTROCHIMICA ACTA,2008,54(1):22-28. |
| APA | Duan, Jizhou,Wu, Suru,Zhang, Xiaojun,Huang, Guiqiao,Du, Min,&Hou, Baorong.(2008).Corrosion of carbon steel influenced by anaerobic biofilm in natural seawater.ELECTROCHIMICA ACTA,54(1),22-28. |
| MLA | Duan, Jizhou,et al."Corrosion of carbon steel influenced by anaerobic biofilm in natural seawater".ELECTROCHIMICA ACTA 54.1(2008):22-28. |
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