The effect of internal capacitance on power quality and energy efficiency in a tubular microbial fuel cell

Fradler, Katrin R.; Kim, Jung-Rae; Boghani, Hitesh C.; Dinsdale, Richard M.; Guwy, Alan J.; Premier, Giuliano C.

doi:10.1016/j.procbio.2014.02.021

Cited by 42 publications

(21 citation statements)

References 31 publications

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“…Moreover, because power overshoot is controllable by supporting the electrical current, it could also in principle be controlled through the introduction of an electrical device. Recently, maximum power point tracking (MPPT) has been introduced, which enables the automatic production of the suitable maximum power, and power management systems (PMSs) have been installed in MFCs to increase their voltage output . Thus, electronic devices suitable for the control of power overshoot could be developed by using the results of this study.…”

Section: Discussionmentioning

confidence: 99%

“…Recently,m aximum powerp oint tracking( MPPT)h as been introduced, which enables the automatic production of the suitable maximum power,a nd power management systems( PMSs)h ave been installed in MFCs to increase their voltage output. [27] Thus, electronic devices suitable for the control of power overshoot could be developed by using the resultsoft his study.…”

Section: Discussionmentioning

confidence: 99%

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Elimination of Power Overshoot at Bioanode through Assistance Current in Microbial Fuel Cells

Kim

Chang

2017

ChemSusChem

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The power overshoot generated by electron depletion in microbial fuel cells (MFCs) was characterized in this study. Various causes of power overshoot, identified in previous studies, are discussed in terms of their plausible contributions to electron depletion. We found that power overshoot occurred if the anodic overpotential generated by electron depletion exceeded the cathodic overpotential. The introduction of assistance current from anode connections, which ameliorated the electron depletion in the MFCs, immediately eliminated the power overshoot. As a result, if the electron production at the anode exceeded electron reduction at the cathode, a power overshoot was not generated. The results revealed that introducing assistance current supplied from an additional anode to the limited anode eliminated power overshoot. The power overshoot is not generated by kinetic limitation at the cathode; it is only generated by the kinetic limitation at the anode. The mechanism underlying power overshoot should be considered in the design of MFCs to improve reliability, particularly in scaled-up plant applications. The proposed technique is more practical than previously proposed methods.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Elimination of Power Overshoot at Bioanode through Assistance Current in Microbial Fuel Cells

Kim

Chang

2017

ChemSusChem

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“…3b shows the EIS of biofilmed electrodes consisting superimposition of two semicircle potion, i.e. association of biofilm redox process and oxidation of fuel or metabolites at high frequency region followed by linear portion at low frequency region [39,40]. Hence, the EIS of biofilm electrode is fitted with equivalent circuit consisting resistance caused by solution (R s ), two time constants, namely double layer capacitance of biofilm (CPE biofilm ) and Helmholtz layer capacitance (CPE HL ), were connected in parallel to their respective resistance of biofilm (R biofilm ) and charge transfer or polarization (R CT/P ) followed by Warburg's diffusion element (WDE) as inset in Fig.…”

Section: Eis Analysismentioning

confidence: 99%

Interfacial electron transfer and bioelectrocatalysis of carbonized plant material as effective anode of microbial fuel cell

Karthikeyan

Wang

Xuan

et al. 2015

Electrochimica Acta

147

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“…81 The coefficient of constant phase element > 0.80, as was the case with the Nafion ® stack, AMI-7001 stack and CMI-7000 stack, suggests a pseudocapacitive process in the anode electrode. It has been demonstrated through impedance measurements that the carbon veil and anode biofilm, in an MFC, are capable of storing energy, obtaining coefficient values up to 0.89 and 0.78 for carbon veil and biofilm, respectively, 82 demonstrating that carbonaceous materials such as biofilm have pseudocapacitive behavior. 83,84 The ohmic resistance (R Ω ) was similar between cells in the same stack (Table 3).…”

Section: Electrochemical Impedance Spectroscopymentioning

confidence: 99%

Performance of a greywater cathode in a microbial fuel cell with three ion exchange membranes

Moreno‐Cervera¹,

Aguilar‐Vega

Domínguez‐Maldonado³

et al. 2019

J of Chemical Tech & Biotech

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BACKGROUND Greywater and blackwater treatment is necessary to make sanitation and water reuse possible, and microbial fuel cells (MFCs) have emerged as a promising technology for achieving this objective. Ion exchange membranes play a key role in double chamber microbial fuel cell performance, but there are differences of opinion as to which membrane type is better. RESULTS This project was set up to study the effect of three ion exchange membranes (Nafion® 117, Ultrex™ CMI‐7000 and Ultrex™ AMI‐7001) in MFCs using greywater as catholyte in stacks of three microbial fuel cells each. The results demonstrate that the stacks with cationic membranes (Nafion® 117 and Ultrex™ CMI‐7000) generated higher power (201.50 ± 21.62 and 178.74 ± 56.89 mW m−3, respectively) than those with the anionic membrane stack Ultrex™ AMI‐7001 (71.57 ± 3.46 mW m−3). For the greywater catholyte, a 31% of chemical oxygen demand removal was achieved and proved to be an option as a catholyte in microbial fuel cells for countries that carry out wastewater separation. CONCLUSIONS The results obtained in this study demonstrated that an anion exchange membrane is not a better option for double chamber MFCs. © 2019 Society of Chemical Industry

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The effect of internal capacitance on power quality and energy efficiency in a tubular microbial fuel cell

Cited by 42 publications

References 31 publications

Elimination of Power Overshoot at Bioanode through Assistance Current in Microbial Fuel Cells

Elimination of Power Overshoot at Bioanode through Assistance Current in Microbial Fuel Cells

Interfacial electron transfer and bioelectrocatalysis of carbonized plant material as effective anode of microbial fuel cell

Performance of a greywater cathode in a microbial fuel cell with three ion exchange membranes

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