Bio-cathode materials evaluation in microbial fuel cells: A comparison of graphite felt, carbon paper and stainless steel mesh materials

Zhang, Yaping; Sun, Jian; Hu, Yongyou; Li, Sizhe; Xu, Qian

doi:10.1016/j.ijhydene.2012.08.064

Cited by 149 publications

(53 citation statements)

References 41 publications

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“…It is known that the anode potential can be used to assess the oxidizing ability of the bacteria present at the anode, directly indicating biofilm development . As can be seen from Fig.…”

Section: Resultsmentioning

confidence: 99%

“…It is known that the anode potential can be used to assess the oxidizing ability of the bacteria present at the anode, directly indicating biofilm development. 13,45 As can be seen from Fig. S1, surprisingly, MFC-SCM and MFC-CM had a much lower anode potential than MFC-BM while the cathode potentials were nearly identical in all three MFCs.…”

Section: Start-up and Stabilization Of The Mfcs In Open Circuit Condimentioning

confidence: 86%

“…The MFC technology is continuously undergoing significant advancements in key factors that improve its efficiency in power generation or wastewater treatment, including in‐depth knowledge about electron transfer mechanisms, formation of better performing and more robust anodic biofilms, electrode materials better suited to the establishment of electrochemically‐active microbial biofilms, as well as innovative MFC designs. Yet, it still needs to overcome major challenges for upscaling at industrially‐relevant dimensions . Upscaling is a critical matter for profitable MFC technology.…”

Section: Introductionmentioning

confidence: 99%

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Dual gas diffusion cathode design for microbial fuel cell (MFC): optimizing the suitable mode of operation in terms of bioelectrochemical and bioelectro‐kinetic evaluation

Pasupuleti

Srikanth

Domínguez-Benetton

et al. 2015

J of Chemical Tech & Biotech

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BACKGROUND Upscaling microbial fuel cells (MFCs) to make them energy‐competitive systems requires a systematic understanding of their operating conditions. This study emphasizes the operation of a new MFC design with two gas diffusion cathodes under three different operational modes (batch mode (MFC‐BM), semi‐continuous mode (MFC‐SCM) and continuous mode (MFC‐CM)), towards increasing the power density, substrate utilization, bioelectrochemical kinetics and energy conversion efficiencies. RESULTS Higher power density was recorded with MFC‐SCM (20.54 mW m−2) followed by MFC‐CM (17.22 mW m−2) and MFC‐BM (0.75 mW m−2). Such power density magnitudes were obtained with high anode projected surface area 220 cm2, which is about 10–100 times larger than frequently used in laboratory‐scale MFCs. On the contrary, susbtrate utilization was higher with MFC‐BM (91–96%) followed by MFC‐SCM (74–84%) and MFC‐CM (53–81%). A higher coulombic efficiency (CE) was obtained with the MFC‐CM (7.5–11.2%), followed by MFC‐SCM (5.4–5.6%) and MFC‐BM (0.5–4%). This is of interest due to its dependence on both current generation as well as substrate utilization. Cyclic voltammograms along with derived bioelectro‐kinetic parameters, i.e. redox Tafel's slopes (βa/βc) and electron transfer co‐efficients (αa/αc), also explained the higher performance of MFC‐CM and MFC‐SCM. CONCLUSION Output from this study demonstrates clearly that the new MFC design can be effectively operated under continuous mode operation with high retention time to enhance wastewater treatment along with good amounts of power output. © 2014 Society of Chemical Industry

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“…It is known that the anode potential can be used to assess the oxidizing ability of the bacteria present at the anode, directly indicating biofilm development . As can be seen from Fig.…”

Section: Resultsmentioning

confidence: 99%

Section: Start-up and Stabilization Of The Mfcs In Open Circuit Condimentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dual gas diffusion cathode design for microbial fuel cell (MFC): optimizing the suitable mode of operation in terms of bioelectrochemical and bioelectro‐kinetic evaluation

Pasupuleti

Srikanth

Domínguez-Benetton

et al. 2015

J of Chemical Tech & Biotech

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show abstract

“…A typical setup of an MFC using microorganisms as catalysts at the cathode with or without the help of manganese and iron mediator is shown in Fig. 8 It is also proved from cyclic voltammetry that biofilm formation is most facilitated by graphite felt followed by carbon paper and stainless steel mesh [76].…”

Section: Biocathodementioning

confidence: 95%

Electrode materials for microbial fuel cells: nanomaterial approach

Mustakeem

2015

Mater Renew Sustain Energy

207

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Microbial fuel cell (MFC) technology has the potential to become a major renewable energy resource by degrading organic pollutants in wastewater. The performance of MFC directly depends on the kinetics of the electrode reactions within the fuel cell, with the performance of the electrodes heavily influenced by the materials they are made from. A wide range of materials have been tested to improve the performance of MFCs. In the past decade, carbon-based nanomaterials have emerged as promising materials for both anode and cathode construction. Composite materials have also shown to have the potential to become materials of choice for electrode manufacture. Various transition metal oxides have been investigated as alternatives to conventional expensive metals like platinum for oxygen reduction reaction. In this review, different carbon-based nanomaterials and composite materials are discussed for their potential use as MFC electrodes.

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“…Because of the reduced use of chemical catalysts, the bio-cathode of MFC is more conform the concept of sustainable development. The current theory and technology of MFC with oxygen as the electron acceptor have been well developed [7,8]. When study the bio-cathode found that a variety of substances can be used as the cathode of the electron acceptors, different cathode electron acceptors can make the MFC have different functions except power generation.…”

Section: Introductionmentioning

confidence: 99%

Effect of Hydraulic Retention Time on MFC-A2/O Process for Domestic Wastewater Treatment

Luo¹,

Gao²,

Liu³

et al. 2017

dteees

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Abstract. A 10L scale MFC coupled A2/O system was built, with the anaerobic tank as anode chamber to remove carbon and the anoxic tank as cathode chamber to denitrify. This coupled system could achieve max output current after 30 days. During the study phase, the hydraulic retention time (HRT) was optimized to improve wastewater treatment efficiency and power generation. The results showed that the coupled system could obtain best pollutants removal effect when HRT=16h. Compared with control reactor, concentrations of COD and TN in the effluent of the coupled system could be reduced by 14.6% and 10.1%. And the power density (external resistance = 100Ω) of the coupled system was 612mW/m3 in the meantime. Correspondingly, the optimum HRT when the coupled system achieved highest power generation was 12h, and the max power density was 808mW/m3.

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Bio-cathode materials evaluation in microbial fuel cells: A comparison of graphite felt, carbon paper and stainless steel mesh materials

Cited by 149 publications

References 41 publications

Dual gas diffusion cathode design for microbial fuel cell (MFC): optimizing the suitable mode of operation in terms of bioelectrochemical and bioelectro‐kinetic evaluation

Dual gas diffusion cathode design for microbial fuel cell (MFC): optimizing the suitable mode of operation in terms of bioelectrochemical and bioelectro‐kinetic evaluation

Electrode materials for microbial fuel cells: nanomaterial approach

Effect of Hydraulic Retention Time on MFC-A2/O Process for Domestic Wastewater Treatment

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