期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 59, 期 -, 页码 43-47出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2015.07.007
关键词
Comamonas testosteroni; Electrochemical active biofilm; Bidirectional; Extracellular electron transfer; Redox species
资金
- College of Engineering, Nanyang Technological University [M4080847.030, M4081044.030]
- Singapore Ministry of Education [MOE2011-T2-2-035, ACR 3/12]
- Singapore Centre on Environmental Life Sciences Engineering [M4330005.C70]
- [NRF-RF2009-RF001-267]
Bidirectional extracellular electron transfer of strain Comamonas testosteroni 12 was for the first time investigated with electrochemical active biofilms developed under different conditions. The electrochemical active biofilm developed under microbial fuel cell conditions was capable of anodic electron transfer via attached redox species with standard potential of 0.04 V (vs. SCE). Meanwhile the above redox species lost its catalytic capability when the biofilm was developed under a constant potential (-0.4 V vs. SCE). Instead, the microbe adjusted its electron transfer strategy to a soluble shuttle (standard potential -0.20 V vs. SCE) and enabled a cathodic current Air exposure experiment verified that the soluble shuttle at negative potential had a positive response to the oxygen; meanwhile the anodic electron transfer via the attached species was rarely influenced. (C) 2015 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据