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dc.contributor.authorZhu, Xiuping
dc.contributor.authorYates, Matthew D.
dc.contributor.authorLogan, Bruce E.
dc.date.accessioned2016-02-28T05:54:10Z
dc.date.available2016-02-28T05:54:10Z
dc.date.issued2012-08
dc.identifier.citationZhu X, Yates MD, Logan BE (2012) Set potential regulation reveals additional oxidation peaks of Geobacter sulfurreducens anodic biofilms. Electrochemistry Communications 22: 116–119. Available: http://dx.doi.org/10.1016/j.elecom.2012.06.013.
dc.identifier.issn1388-2481
dc.identifier.doi10.1016/j.elecom.2012.06.013
dc.identifier.urihttp://hdl.handle.net/10754/599605
dc.description.abstractHigher 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. © 2012 Elsevier B.V.
dc.description.sponsorshipThis research was supported by Award KUS-I1-003-13 from the King Abdullah University of Science and Technology (KAUST). We also thank Hiroyuki Kashima for help in confirming the purity of the reactors.
dc.publisherElsevier BV
dc.subjectAnode potential
dc.subjectBioelectrochemical system
dc.subjectExtracellular electron transfer
dc.subjectGeobacter sulfurreducens
dc.titleSet potential regulation reveals additional oxidation peaks of Geobacter sulfurreducens anodic biofilms
dc.typeArticle
dc.identifier.journalElectrochemistry Communications
dc.contributor.institutionPennsylvania State University, State College, United States
kaust.grant.numberKUS-I1-003-13


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