Abstract
The effects of a static magnetic field (MF) on the electricity production and anodic bioelectrochemical activity in Geobacter sulfurreducens-inoculated microbial fuel cells (MFCs) were investigated. The results showed that application of a MF of 100, 200, and 400 mT improved the electricity generation considerably, with an increase in the maximum power density by 27–100 %. The maximum power density of 0.030 mW cm−2 was obtained at field strength of 100 mT, representing the best MFC performance with the lowest internal resistance of 453.6 Ω. Electrochemical impedance spectroscopy results showed that the MFC activation resistance was decreased under a MF. The impact of a MF on the bioelectrochemical activity of Geobacter-based biofilm was analyzed by cyclic voltammetry (CV). The redox peak currents of the voltammetric behavior increased in the presence of a MF, indicating enhanced bioelectrochemical catalyzed activity. In addition, evidence from CV revealed higher density of electroactive species in the anodic biofilm with MF than without, leading to a more efficient direct electron transfer process by G. sulfurreducens.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
