Nano-Fe3C@2D-NC@CC as anode for improving extracellular electron transfer and electricity generation of microbial fuel cells

hua, Mei; Lin, Yingyu; Li, Xin; Zhang, Wenguang; Yang, Yuxian; Li, Guanjie; Lu, Yikeng; Li, Weishan

doi:10.1016/j.electacta.2021.139618

Cited by 12 publications

(4 citation statements)

References 55 publications

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“…[8] Researchers focus on the applications of MOFs to address these limitations. [9,10] To enhance the ORR, usually platinum is used as the catalyst which is known to be the best. However, we cannot afford to have high loading of Pt as it is prohibitively costly leading us to explore alternative materials.…”

Section: Microbial Fuel Cellsmentioning

confidence: 99%

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Metal‐Organic Framework‐Based Electrode Platforms in the Assembly of Biofuel Cells and Self‐Powered Sensors

2022

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Bioelectricity or bioelectrochemical energy conversion, which is not subjected to Carnot's limitation, is a greener alternative to renewable energy sources. However, the sluggishness of electron transfer between enzyme/microorganisms and the electrodes and low efficiency of electron capture at the electrodes limit the power densities to lower levels. Development of rugged low power density devices with prolonged life is suitable for applications such as powering implantable devices, fabrication of self-powered sensors, powering remote sensors, wastewater treatment and bioelectrosynthesis. Metal organic frameworks (MOFs) are versatile materials with high surface area that can act as exoskeletons for enzymes/microorganisms to stabilize and protect them from denaturation with retention of their activity for a prolonged period, thereby enabling robustness to the biocatalyst. Further MOFs and MOF-derived carbonaceous materials are shown to perform better than Pt/C catalysts for the oxygen reduction reaction (ORR), the often used cathodic reaction in a biofuel cell. The role of MOFs in the area of bioelectrochemical energy conversion, especially with respect to applications in biofuel cells and self-powered sensors, is discussed in detail in this Review.

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Section: Microbial Fuel Cellsmentioning

confidence: 99%

“…Recently it has been shown that two dimensional MOFs can be grown on carbon cloth in the absence of a binder which exhibited good bacterial adhesion and exocellular electron transfer. [9] Microorganisms can be immobilized on the electrodes in presence of MOFs either by biofilm formation or biomimetic mineralization.…”

Section: Microorganismsmentioning

confidence: 99%

Metal‐Organic Framework‐Based Electrode Platforms in the Assembly of Biofuel Cells and Self‐Powered Sensors

2022

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“…Especially, the ultrafine Fe 3 C-based nanoparticles possess highly exposing active sites and could therefore be considered as a promising catalytic agent. Nevertheless, the strong aggregation tendency of Fe 3 C nanoparticles often leads to loss of surface area, reducing their catalytic capacity [19,20]. Dispersing Fe 3 C nanoparticles over a porous conducting matrix, especially heteroatom-doped porous conductive carbon, could be an effective strategy to minimize nanoparticle aggregation.…”

Section: Introductionmentioning

confidence: 99%

Facile Fabrication of Wood-Derived Porous Fe3C/Nitrogen-Doped Carbon Membrane for Colorimetric Sensing of Ascorbic Acid

Saeedi Garakani,

Zhang,

Xie

et al. 2023

Nanomaterials

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Fe3C nanoparticles hold promise as catalysts and nanozymes, but their low activity and complex preparation have hindered their use. Herein, this study presents a synthetic alternative toward efficient, durable, and recyclable, Fe3C-nanoparticle-encapsulated nitrogen-doped hierarchically porous carbon membranes (Fe3C/N–C). By employing a simple one-step synthetic method, we utilized wood as a renewable and environmentally friendly carbon precursor, coupled with poly(ionic liquids) as a nitrogen and iron source. This innovative strategy offers sustainable, high-performance catalysts with improved stability and reusability. The Fe3C/N–C exhibits an outstanding peroxidase-like catalytic activity toward the oxidation of 3,3′,5,5′-tetramethylbenzidine in the presence of hydrogen peroxide, which stems from well-dispersed, small Fe3C nanoparticles jointly with the structurally unique micro-/macroporous N–C membrane. Owing to the remarkable catalytic activity for mimicking peroxidase, an efficient and sensitive colorimetric method for detecting ascorbic acid over a broad concentration range with a low limit of detection (~2.64 µM), as well as superior selectivity, and anti-interference capability has been developed. This study offers a widely adaptable and sustainable way to synthesize an Fe3C/N–C membrane as an easy-to-handle, convenient, and recoverable biomimetic enzyme with excellent catalytic performance, providing a convenient and sensitive colorimetric technique for potential applications in medicine, biosensing, and environmental fields.

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“…The substrate in the anode chamber is metabolically oxidized by exoelectrogens to produce electrons and protons. [4][5][6] The electrons reach the anode by direct or indirect transfer and then flow to the cathode, which is connected via the external circuit. At the same time, protons arrive at the cathode chamber through the PEM, where they react with electrons and O 2 in a reduction reaction to produce H 2 O.…”

Section: Introductionmentioning

confidence: 99%

Advances in Anode Materials for Microbial Fuel Cells

Kong

Zhao

et al. 2022

Energy Tech

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Nano-Fe3C@2D-NC@CC as anode for improving extracellular electron transfer and electricity generation of microbial fuel cells

Cited by 12 publications

References 55 publications

Metal‐Organic Framework‐Based Electrode Platforms in the Assembly of Biofuel Cells and Self‐Powered Sensors

Metal‐Organic Framework‐Based Electrode Platforms in the Assembly of Biofuel Cells and Self‐Powered Sensors

Facile Fabrication of Wood-Derived Porous Fe3C/Nitrogen-Doped Carbon Membrane for Colorimetric Sensing of Ascorbic Acid

Advances in Anode Materials for Microbial Fuel Cells

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