Fe/Fe2O3 nanoparticles as anode catalyst for exclusive power generation and degradation of organic compounds using microbial fuel cell

Mohamed, Hend Omar; Obaid, M.; Poo, Kyung-Min; Abdelkareem, Mohammad Ali; Talas, Sawsan Abo; Fadali, Olfat A.; Kim, Hee Young

doi:10.1016/j.cej.2018.05.138

Cited by 93 publications

(28 citation statements)

References 34 publications

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“…Use of carbon felt [16] and the presence of electrogenic microorganisms [14] often resulted in better performance of MFCs, due to increased surface area of the electrode and efficient conversion of the substrate to electrical energy, respectively. The CD values reported in literature vary widely from µA to A, normalized by projected surface area [13,14,43]. The optimum CD in the present study ranged from 15 mA·m −2 (cell A) to 500 mA·m −2 (cell B) and 160 mA·m −2 (cell C), which are comparable to some of the studies reported.…”

Section: Performance Of Mfcssupporting

confidence: 84%

“…Coating of gold (Au) and palladium (Pd) nanoparticles on graphite anode was reported by Fan et al [43], where Au-and Pd-decorated anodes generated maximum CDs of 74.4 µA·cm −2 and 8.8 µA·cm −2 , respectively, compared to plain graphite anodes (3.6 µA·cm −2 ) [43]. A recent study describing Fe/Fe 2 O 3 electrodeposition on carbon cloth reported a PD of 200 mW·m −2 [13]. Electrodeposition of NiFeP nanostructures on carbon felt has shown about a five-fold improvement in PD value, measuring 260 ± 8 mW·m −2 , with respect to the control in a yeast-based biofuel cell [26].…”

Section: Performance Of Mfcsmentioning

confidence: 94%

“…Carbon-based materials (cloth, felt, paper) are the most frequently used and cost-effective anode materials in MFCs for making biocompatible electrodes. The hydrophobic nature of these materials often increases the interfacial resistance, due to inefficient adhesion of microbes on the anode surface [13][14][15]. A range of physical and chemical treatments have been previously reported to modify the carbon materials for improving conductivity, surface area, and biocompatibility for microbial growth [16].…”

Section: Introductionmentioning

confidence: 99%

“…These include the use of quinones [17,18], Mn 4+ [19], and neutral red [19,20] as electroactive mediator species to stimulate faster electron transfer. Conducting polymers [17], carbon nanotubes (CNTs) [21,22], and metal particles [13,23] for electrode modification are among the other methods adopted. Earlier reported studies have also revealed that coating carbonaceous anode material with metal and metal oxides enriches the electroactive microbial community, resulting in better fuel cell performance.…”

Section: Introductionmentioning

confidence: 99%

“…Earlier reported studies have also revealed that coating carbonaceous anode material with metal and metal oxides enriches the electroactive microbial community, resulting in better fuel cell performance. Anode modification with Au [24], Pd, manganese dioxide, iron oxides [13,23], ruthenium oxide [16], Ti [25], electrodeposition of nickel-iron (NiFe) and nickel-iron-phosphorous (NiFeP) nanostructures [26] has shown improved performance, compared to an uncoated anode.…”

Section: Introductionmentioning

confidence: 99%

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Comparative Evaluation of Coated and Non-Coated Carbon Electrodes in a Microbial Fuel Cell for Treatment of Municipal Sludge

et al. 2019

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This study aims to provide insight into the cost-effective catalyst on power generation in a microbial fuel cell (MFC) for treatment of municipal sludge. Power production from MFCs with carbon, Fe2O3, and Pt electrodes were compared. The MFC with no coating on carbon generated the least power density (6.72 mW·m−2) while the MFC with Fe2O3-coating on carbon anodes and carbon cathodes generated a 78% higher power output (30.18 mW·m−2). The third MFC with Fe2O3-coated carbon anodes and Pt on carbon as the cathode catalyst generated the highest power density (73.16 mW·m−2) at room temperature. Although the power generated with a conventional Pt catalyst was more than two-fold higher than Fe2O3, this study suggests that Fe2O3 can be investigated further as an efficient, low-cost, and alternative catalyst of Pt, which can be optimized for improving performance of MFCs. Electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) results demonstrated reduced resistance of MFCs and better charge transfer between biofilm and electrodes containing coated anodes compared to non-coated anodes. Scanning electron microscopy (SEM) was used to analyze biofilm morphology and microbial community analysis was performed using 16S rRNA gene sequencing, which revealed the presence of known anaerobic fermenters and methanogens that may play a key role in energy generation in the MFCs.

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Section: Performance Of Mfcssupporting

confidence: 84%

Section: Performance Of Mfcsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Comparative Evaluation of Coated and Non-Coated Carbon Electrodes in a Microbial Fuel Cell for Treatment of Municipal Sludge

et al. 2019

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Functional Nanomaterial‐Modified Anodes in Microbial Fuel Cells: Advances and Perspectives

Jiang

Hui

Jiang

et al. 2022

Chemistry A European J

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Microbial fuel cell (MFC) is a promising approach that could utilize microorganisms to oxidize biodegradable pollutants in wastewater and generate electrical power simultaneously. Introducing advanced anode nanomaterials is generally considered as an effective way to enhance MFC performance by increasing bacterial adhesion and facilitating extracellular electron transfer (EET). This review focuses on the key advances of recent anode modification materials, as well as the current understanding of the microbial EET process occurring at the bacteria‐electrode interface. Based on the difference in combination mode of the exoelectrogens and nanomaterials, anode surface modification, hybrid biofilm construction and single‐bacterial surface modification strategies are elucidated exhaustively. The inherent mechanisms may help to break through the performance output bottleneck of MFCs by rational design of EET‐related nanomaterials, and lead to the widespread application of microbial electrochemical systems.

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Carbon‐Based Composites as Anodes for Microbial Fuel Cells: Recent Advances and Challenges

et al. 2021

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site). The relationship is demonstrated in depth between the physicochemical properties of the anode surface/interface/bulk (porosity, surface area, hydrophilicity, partical size, charge, roughness, etc.) and the bioelectrochemical performances (electron transfer, electrolyte diffusion, capacitance, toxicity, start-up time, current, power density, voltage, etc.). An outlook for future work is also proposed.

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Fe/Fe2O3 nanoparticles as anode catalyst for exclusive power generation and degradation of organic compounds using microbial fuel cell

Cited by 93 publications

References 34 publications

Comparative Evaluation of Coated and Non-Coated Carbon Electrodes in a Microbial Fuel Cell for Treatment of Municipal Sludge

Comparative Evaluation of Coated and Non-Coated Carbon Electrodes in a Microbial Fuel Cell for Treatment of Municipal Sludge

Functional Nanomaterial‐Modified Anodes in Microbial Fuel Cells: Advances and Perspectives

Carbon‐Based Composites as Anodes for Microbial Fuel Cells: Recent Advances and Challenges

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