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A microbial fuel cell with a pure-culture Geobacter sulfurreducens electroactive biofilm was used for performance optimization by making rapid changes to experimental parameters in microchannels while monitoring their effect using linear sweep voltammetry. A systematic investigation of polarization behavior and evaluation of system resistivity provided important figures of merit and mechanistic insights on the effects of flow rates, concentrations, and temperature after reaching maturity. After individual parameters were optimized, a synergistic effect was observed by applying optimal parameters together, resulting in improved current and maximum power densities, compared to stable values at unoptimized conditions. Continued acclimation for just two days under these conditions resulted in further improvements to anode area-normalized current and power maxima (10.49±0.23 A m-2 and 2.48±0.27 W m-2), which are among the highest reported in the literature for a microfluidic MFC. In keeping with other accepted normalization protocol using the area separating anode and cathode chambers, the outputs were recalculated as 64 A m-2 and 15 W m-2.
Strategies for optimizing the power output of microbial fuel cells: Transitioning from fundamental studies to practical implementation - ScienceDirect
Microfluidic fuel cells for energy generation - Lab on a Chip (RSC Publishing) DOI:10.1039/C6LC90070D
Sediment microbial fuel cells as a barrier to sulfide accumulation and their potential for sediment remediation beneath aquaculture pens
Paper-based microfluidic fuel cells and their applications: A prospective review - ScienceDirect
PDF) Microbial fuel cell power overshoot studied with microfluidics: from quantification to elimination
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Boosting microfluidic microbial fuel cells performance via investigating electron transfer mechanisms, metal-based electrodes, and magnetic field effect
Performance improvement of microbial fuel cells by fermentation gas driven fluidization of magnetite nanoparticles and carbon particles - ScienceDirect
Is microbial fuel cell technology ready? An economic answer towards industrial commercialization - ScienceDirect
