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The anaerobic hydrogen cycling process of Exiguobacterium acetylicum regulated by electron acceptor and redox mediators accelerates the microbiologically influenced corrosion of Q235 steel: An environmental analysis result

文献类型：期刊论文

作者Guo, Ding1,2; Liu, Jia1; Zhai, Xiaofan1; Wang, Yanan1; Guan, Fang1; Duan, Jizhou1,2; Hou, Baorong1
刊名CORROSION SCIENCE
出版日期2026-05-01
卷号263页码:15
关键词Microbiologically influenced corrosion (MIC) Exiguobacterium acetylicum Nitrate-reducing bacteria (NRB) Extracellular electron transfer (EET) Hydrogen cycle
ISSN号0010-938X
DOI10.1016/j.corsci.2026.113640
通讯作者Guo, Ding() ; Liu, Jia(liujia@qdio.ac.cn) ; Wang, Yanan(YNan_wang@163.com) ; Duan, Jizhou(duanjz@qdio.ac.cn)
英文摘要Environmental analysis was employed to assess the pitting corrosion acceleration mechanism of an anaerobic nitrate-reducer Exiguobacterium acetylicum on Q235 steel (Pitmax=29 mu m). The metabolic corrosion process of microbial extracellular electron transfer was re-evaluated through chemical thermodynamic and kinetic calculations. E. acetylicum accelerated cathodic hydrogen depolarization corrosion of steel by coupling hydrogenase with the oxidation-reduction of quinones in the cell membrane to achieve hydrogen cycling on the steel surface. Lithotrophic E. acetylicum promoted hydrogen evolution between ferrite phases on the iron surface, thereby enhancing denitrification and nitrogen removal processes and increasing corrosion loss.
WOS关键词EVOLUTION
资助项目Strategic Priority Research Pro-gram of the Chinese Academy of Sciences[XDB1210302] ; National Natural Science Foundation of China[42476209] ; Shandong Pro-vincial Natural Science Foundation[ZR2023MD024] ; Guangxi Natural Science Youth Foundation[2023GXNSFBA026252]
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:001692108200001
出版者PERGAMON-ELSEVIER SCIENCE LTD
源URL[http://ir.qdio.ac.cn/handle/337002/204787]  
专题海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者Guo, Ding; Liu, Jia; Wang, Yanan; Duan, Jizhou
作者单位1.Chinese Acad Sci, Inst Oceanol, State Key Lab Adv Marine Mat, Shandong Key Lab Marine Environm Corros & Biofouli, 7 Nanhai Rd, Qingdao 266071, Peoples R China
2.Univ Chinese Acad Sci, 380 Huaibeizhen Rd, Beijing 101408, Peoples R China
推荐引用方式
GB/T 7714		 Guo, Ding,Liu, Jia,Zhai, Xiaofan,et al. The anaerobic hydrogen cycling process of Exiguobacterium acetylicum regulated by electron acceptor and redox mediators accelerates the microbiologically influenced corrosion of Q235 steel: An environmental analysis result[J]. CORROSION SCIENCE,2026,263:15.
APA Guo, Ding.,Liu, Jia.,Zhai, Xiaofan.,Wang, Yanan.,Guan, Fang.,...&Hou, Baorong.(2026).The anaerobic hydrogen cycling process of Exiguobacterium acetylicum regulated by electron acceptor and redox mediators accelerates the microbiologically influenced corrosion of Q235 steel: An environmental analysis result.CORROSION SCIENCE,263,15.
MLA Guo, Ding,et al."The anaerobic hydrogen cycling process of Exiguobacterium acetylicum regulated by electron acceptor and redox mediators accelerates the microbiologically influenced corrosion of Q235 steel: An environmental analysis result".CORROSION SCIENCE 263(2026):15.

入库方式： OAI收割

来源：海洋研究所

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