Internal resistance of microfluidic microbial fuel cell: Challenges and potential opportunities

Continuous mode operation of microbial fuel cell (MFC) stack with dual gas diffusion cathode design for the treatment of dark fermentation effluent

“…False selection of CDP may effect largely on power output of the stack cell. Moreover, variations in the operating conditions like anolyte pH, DFE complexity strength and composition, operating temperature, mode of operation and other factors significantly impacts the biofilm formation and its growth leads to changes in the internal resistance over the time [34,35]. However, the stack cell was well optimised and be operated at steady state conditions, only R ex control was an important requirement to maximize the power output from the stack cell in this study.…”

Electrode and azo dye decolorization performance in microbial-fuel-cell-coupled constructed wetlands with different electrode size during long-term wastewater treatment

“…The cathode resistance comprised the cathode activation resistance, the cathode diffusion resistance, and the cathode ohmic resistance (Elmekawy et al, 2013); however, because all of the CW-MFCs had cathode ohmic resistances of 3-5 Ω, they are not shown in Figure 3B. All CW-MFCs had middle-layer resistances of about 155 Ω, which did not differ significantly among the systems (P < 0.01) (Fig.…”

Separators used in microbial electrochemical technologies: Current status and future prospects

“…The pH decrease in the anode chamber and its rise in the cathode chamber during METs' operation are caused by the slower transport of protons through the Nafion separator compared to both the proton production rate in the anode chamber and the proton consumption rate in the cathode chamber (Gil et al, 2003;Sivasankaran and Sangeetha, 2011). The pH imbalance also results in higher internal resistance because of concentration polarization loss (ElMekawy et al, 2013) high ohmic losses because of higher affinity for cation species than protons (Logan, 2008) and a significant reduction in MFC performance (Rozendal et al, 2008).…”