Conductive carbon-polymer composite for bioelectrodes and electricity generation in a sedimentary microbial fuel cell

Mejía-López, M.; Danguillecourt, Orlando Lastres; Alemán-Ramirez, J.L.; Lobato-Peralta, Diego Ramón; Verde, A.; Gámez, J.J. Monjardín; Paz, Pascual López de; Verea, L.

doi:10.1016/j.bej.2023.108856

Cited by 4 publications

(1 citation statement)

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“…As the research in bioelectrochemical technologies progresses, integrating microbial fuel cells (MFCs) into an energy transition framework could significantly contribute to a more sustainable future [7][8][9][10]. An MFC converts biochemical energy into electrical energy through the metabolism of exoelectrogen microorganisms [11][12][13][14][15]. They operate in near-neutral pH as galvanic cells fed with wastewater, allowing the harvesting of electrical energy from removing organics in waste [16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Design and Optimization of Critical-Raw-Material-Free Electrodes towards the Performance Enhancement of Microbial Fuel Cells

Nisa,

da Silva Freitas,

D’Epifanio

et al. 2024

Catalysts

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Microbial fuel cells (MFCs) are sustainable energy recovery systems because they use organic waste as biofuel. Using critical raw materials (CRMs), like platinum-group metals, at the cathode side threatens MFC technology’s sustainability and raises costs. By developing an efficient electrode design for MFC performance enhancement, CRM-based cathodic catalysts should be replaced with CRM-free materials. This work proposes developing and optimizing iron-based air cathodes for enhancing oxygen reduction in MFCs. By subjecting iron phthalocyanine and carbon black pearls to controlled thermal treatments, we obtained Fe-based electrocatalysts combining high surface area (628 m2 g−1) and catalytic activity for O2 reduction at near-neutral pH. The electrocatalysts were integrated on carbon cloth and carbon paper to obtain gas diffusion electrodes whose architecture was optimized to maximize MFC performance. Excellent cell performance was achieved with the carbon-paper-based cathode modified with the Fe-based electrocatalysts (maximum power density-PDmax = 1028 mWm−2) compared to a traditional electrode design based on carbon cloth (619 mWm−2), indicating the optimized cathodes as promising electrodes for energy recovery in an MFC application.

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Section: Introductionmentioning

confidence: 99%

Design and Optimization of Critical-Raw-Material-Free Electrodes towards the Performance Enhancement of Microbial Fuel Cells

Nisa,

da Silva Freitas,

D’Epifanio

et al. 2024

Catalysts

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Unveiling microbial community structure and metabolic pathway over carbon cloth-titanium nitride-polyaniline biocathode for effective dichloromethane transformation

Wu,

Yang,

et al. 2024

Environmental Pollution

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An Overview of Microbial Fuel Cell Technology for Sustainable Electricity Production

Apollon

2023

Membranes

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The over-exploitation of fossil fuels and their negative environmental impacts have attracted the attention of researchers worldwide, and efforts have been made to propose alternatives for the production of sustainable and clean energy. One proposed alternative is the implementation of bioelectrochemical systems (BESs), such as microbial fuel cells (MFCs), which are sustainable and environmentally friendly. MFCs are devices that use bacterial activity to break down organic matter while generating sustainable electricity. Furthermore, MFCs can produce bioelectricity from various substrates, including domestic wastewater (DWW), municipal wastewater (MWW), and potato and fruit wastes, reducing environmental contamination and decreasing energy consumption and treatment costs. This review focuses on recent advancements regarding the design, configuration, and operation mode of MFCs, as well as their capacity to produce bioelectricity (e.g., 2203 mW/m2) and fuels (i.e., H2: 438.7 mg/L and CH4: 358.7 mg/L). Furthermore, this review highlights practical applications, challenges, and the life-cycle assessment (LCA) of MFCs. Despite the promising biotechnological development of MFCs, great efforts should be made to implement them in a real-time and commercially viable manner.

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Conductive carbon-polymer composite for bioelectrodes and electricity generation in a sedimentary microbial fuel cell

Cited by 4 publications

References 58 publications

Design and Optimization of Critical-Raw-Material-Free Electrodes towards the Performance Enhancement of Microbial Fuel Cells

Design and Optimization of Critical-Raw-Material-Free Electrodes towards the Performance Enhancement of Microbial Fuel Cells

Unveiling microbial community structure and metabolic pathway over carbon cloth-titanium nitride-polyaniline biocathode for effective dichloromethane transformation

An Overview of Microbial Fuel Cell Technology for Sustainable Electricity Production

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