IOCAS-IR  > 海洋环境腐蚀与与生物污损重点实验室
Catalysis of oxygen reduction reaction by an iron-reducing bacterium isolated from marine corrosion product layers
Wu, Jiajia1; Wang, Peng1; Zhang, Dun1; Chen, Shiqiang1; Sun, Yan1; Wu, Jinyi2
2016-08-01
Source PublicationJOURNAL OF ELECTROANALYTICAL CHEMISTRY
Volume774Pages:83-87
SubtypeArticle
AbstractThe impact of Thalassospira sp., an iron-reducing bacterium isolated from marine corrosion product layers, on oxygen reduction reaction (ORR) has been investigated in the present study. ORR catalysis has been observed on a glassy carbon (GC) electrode when it is exposed to phosphate-buffered saline containing Thalassospira sp., and the adhesive biofilm consisting of bacterial cells and metabolites is believed to be responsible for the catalysis. A certain time of contact between the electrode and live cells is necessary for ORR catalysis, but the metabolic activity of cells after adhesion is not vital for the catalysis, and adsorbed compounds excreted by bacteria play a more important role. The ORR catalytic activity of Thalassospira sp. does not depend directly on bacterial surface coverage given the results of cyclic voltammetry and scanning electron microscopy. For the ORR kinetics analysis, the 4-electron pathway with H2O as the final product is achieved by the biofilm, which is different from the predominant 2-electron transformation on the bare GC electrode. (C) 2016 Elsevier B.V. All rights reserved.
KeywordOxygen Reduction Reaction Catalysis ThalassoSp.ra Sp. Rotating Ring-disk Electrode
DOI10.1016/j.jelechem.2016.04.053
Indexed BySCI
Language英语
WOS IDWOS:000379558800012
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/130953
Collection海洋环境腐蚀与与生物污损重点实验室
Affiliation1.Chinese Acad Sci, Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China
2.Hainan Univ, Coll Mat & Chem Engn, Remin Ave 58, Haikou 570228, Peoples R China
Recommended Citation
GB/T 7714
Wu, Jiajia,Wang, Peng,Zhang, Dun,et al. Catalysis of oxygen reduction reaction by an iron-reducing bacterium isolated from marine corrosion product layers[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY,2016,774:83-87.
APA Wu, Jiajia,Wang, Peng,Zhang, Dun,Chen, Shiqiang,Sun, Yan,&Wu, Jinyi.(2016).Catalysis of oxygen reduction reaction by an iron-reducing bacterium isolated from marine corrosion product layers.JOURNAL OF ELECTROANALYTICAL CHEMISTRY,774,83-87.
MLA Wu, Jiajia,et al."Catalysis of oxygen reduction reaction by an iron-reducing bacterium isolated from marine corrosion product layers".JOURNAL OF ELECTROANALYTICAL CHEMISTRY 774(2016):83-87.
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