期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 22, 期 -, 页码 116-119出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2012.06.013
关键词
Bioelectrochemical system; Geobacter sulfurreducens; Anode potential; Extracellular electron transfer
资金
- King Abdullah University of Science and Technology (KAUST) [KUS-I1-003-13]
Higher current densities produced in microbial fuel cells and other bioelectrochemical systems are associated with the presence of various Geobacter species. A number of electron transfer components are involved in extracellular electron transfer by the model exoelectrogen, Geobacter sulfurreducens. It has previously been shown that 5 main oxidation peaks can be identified in cyclic voltammetry scans. It is shown here that 7 separate oxidation peaks emerged over relatively long periods of time when a larger range of set potentials was used to acclimate electroactive biofilms. The potentials of oxidation peaks obtained with G. sulfurreducens biofilms acclimated at 0.60 V (vs. Ag/AgCl) were different from those that developed at -0.46 V. and both of their peaks were different from those obtained for biofilms incubated at -0.30 V. 0 V. and 0.30 V. These results expand the known range of potentials for which G. sulfurreducens produces identifiable oxidation peaks that could be important for extracellular electron transfer. (C) 2012 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