Effects of methylene blue and methyl red mediators on performance of yeast based microbial fuel cells adopting polyethylenimine coated carbon felt as anode

Christwardana, Marcelinus; Frattini, Domenico; Accardo, Grazia; Yoon, Sung Pil; Kwon, Yongchai

doi:10.1016/j.jpowsour.2018.06.005

Cited by 75 publications

(24 citation statements)

References 48 publications

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“…However, some of the microorganisms tested in MFCs have little tendency to adhere to 3D structures, which can be counterbalanced by polymers with functional groups that help to initiate microbial adhesion to the anode via electrostatic interactions . In this way, the fixation of yeast cells at the anode was achieved by making use of the electrostatic forces between the positively charged amino groups of the applied polyethyleneimine and the negatively charged cell wall of Saccharomyces cerevisiae at pH = 7.4 .…”

Section: Immobilization and Redox Mediator‐based Strategies For Enhanmentioning

confidence: 99%

“…In addition to anthraquinone derivatives, methylene blue, neutral red, methyl red, and 2‐hydroxy‐1,4‐naphthoquinone were investigated for their potential use as redox mediators with methylene blue showing the highest power densities , , . Studies have also shown that the effect of methylene blue is strain‐dependent .…”

Section: Immobilization and Redox Mediator‐based Strategies For Enhanmentioning

confidence: 99%

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Strategies for the Targeted Improvement of Anodic Electron Transfer in Microbial Fuel Cells

et al. 2019

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The concept of the microbial fuel cell (MFC) has existed for over 100 years, but only within the last decade, the practical implementation has become conceivable due to microbial and technical progress. This review article presents available strategies to increase the limiting extracellular electron transfer (EET) in the anode space of MFCs. Therefore, organism‐based improvements as well as the effects of (bio–)polymers and redox mediators on ETT will be demonstrated.

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Section: Immobilization and Redox Mediator‐based Strategies For Enhanmentioning

confidence: 99%

Section: Immobilization and Redox Mediator‐based Strategies For Enhanmentioning

confidence: 99%

Strategies for the Targeted Improvement of Anodic Electron Transfer in Microbial Fuel Cells

et al. 2019

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“…B. über elektrostatische Wechselwirkungen die mikrobielle Anhaftung an der Anode initiieren helfen . So gelang die Fixierung von Hefezellen an der Anode, indem sich bei pH = 7,4 die elektrostatischen Anziehungskräfte zwischen den positiv geladenen Amino‐Gruppen des verwendeten Polyethylenimins sowie der negativ geladenen Zellwand von Saccharomyces cerevisiae zu Nutze gemacht wurden .…”

Section: Immobilisierungs‐ Und Redox‐mediator‐basierte Strategien Zurunclassified

“…Neben Anthrachinon‐Derivaten wurden auch Methylenblau, Neutralrot, Methylrot sowie 2‐Hydroxy‐1,4‐naphthochinon auf ihr Potenzial als Redox‐Mediator untersucht, wobei sich für Methylenblau die jeweils höchsten Leistungsdichten ergaben , , . Untersuchungen zeigten außerdem, dass die Wirkung von Methylenblau stammabhängig ist .…”

Section: Immobilisierungs‐ Und Redox‐mediator‐basierte Strategien Zurunclassified

Strategien zur gezielten Verbesserung des anodenseitigen Elektronentransfers in mikrobiellen Brennstoffzellen

Heydorn

Engel

Krull

et al. 2019

Chemie Ingenieur Technik

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Das Konzept der mikrobiellen Brennstoffzelle (microbial fuel cell, MFC) existiert seit über 100 Jahren, doch erst im letzten Jahrzehnt ist deren praktische Anwendung in der Abwasseraufbereitung auch in Maßstäben bis 1000 L realisiert worden. In diesem Beitrag werden verfügbare Strategien vorgestellt, um den bislang noch limitierenden extrazellulären Elektronentransfer (EET) im Anodenraum von MFCs zu erhöhen. Dafür werden Organismen-basierte Ansätze sowie der Einfluss von (Bio-)Polymeren und Redox-Mediatoren auf den EET vorgestellt.The concept of the microbial fuel cell (MFC) has existed for over 100 years, but only since the last decade its practical implementation in waste water treatment has been realized in scales up to 1000 L. This review article shows available strategies to increase the limiting extracellular electron transfer (EET) for anode space of MFCs. Therefore, organism-based improvements as well as the effect of (bio)polymers and redox mediators on ETT will be demonstrated.

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“…This means the microorganism should be in direct contact with the anode surface [23]. The indirect transfer occurs via an endogenous or exogenous mediator to transfer electrons to the anode surface [38,39]. The properties of the bio-anode play a critical part in the performance of MFCs [23,40].…”

Section: Introductionmentioning

confidence: 99%

A Carbon-Cloth Anode Electroplated with Iron Nanostructure for Microbial Fuel Cell Operated with Real Wastewater

et al. 2020

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Microbial fuel cell (MFC) is an emerging method for extracting energy from wastewater. The power generated from such systems is low due to the sluggish electron transfer from the inside of the biocatalyst to the anode surface. One strategy for enhancing the electron transfer rate is anode modification. In this study, iron nanostructure was synthesized on a carbon cloth (CC) via a simple electroplating technique, and later investigated as a bio-anode in an MFC operated with real wastewater. The performance of an MFC with a nano-layer of iron was compared to that using bare CC. The results demonstrated that the open-circuit voltage increased from 600 mV in the case of bare CC to 800 mV in the case of the iron modified CC, showing a 33% increase in OCV. This increase in OCV can be credited to the decrease in the anode potential from 0.16 V vs. Ag/AgCl in the case of bare CC, to −0.01 V vs. Ag/AgCl in the case of the modified CC. The power output in the case of the modified electrode was 80 mW/m2—two times that of the MFC using the bare CC. Furthermore, the steady-state current in the case of the iron modified carbon cloth was two times that of the bare CC electrode. The improved performance was correlated to the enhanced electron transfer between the microorganisms and the iron-plated surface, along with the increase of the anode surface- as confirmed from the electrochemical impedance spectroscopy and the surface morphology, respectively.

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Effects of methylene blue and methyl red mediators on performance of yeast based microbial fuel cells adopting polyethylenimine coated carbon felt as anode

Cited by 75 publications

References 48 publications

Strategies for the Targeted Improvement of Anodic Electron Transfer in Microbial Fuel Cells

Strategies for the Targeted Improvement of Anodic Electron Transfer in Microbial Fuel Cells

Strategien zur gezielten Verbesserung des anodenseitigen Elektronentransfers in mikrobiellen Brennstoffzellen

A Carbon-Cloth Anode Electroplated with Iron Nanostructure for Microbial Fuel Cell Operated with Real Wastewater

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