Electrochemical characterization of anodic biofilm development in a microbial fuel cell

Martin, Edith; Savadogo, O.; Guiot, Serge R.; Tartakovsky, B.

doi:10.1007/s10800-013-0537-2

Cited by 43 publications

(22 citation statements)

References 36 publications

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“…The charge transfer resistance of a microfibrous carbon paper bioanode has been observed to decrease from 2.6 kΩ·cm 2 to 480 Ω·cm 2 in 3 weeks in an MFC inoculated with a mixed culture from anaerobic sludge and fed with acetate [24]. Martin et al have observed similar behaviour with the MFC carbon felt bioanode, with a charge transfer resistance of 33 kΩ·cm 2 and 95 Ω·cm 2 , obtained 4 and 28 days after inoculation, respectively [13]. In this last study, EIS was implemented at the open circuit potential, where both anodic and cathodic phenomena can occur and must be differentiated to conclude.…”

Section: Eis During Bioanode Developmentmentioning

confidence: 88%

“…The first time constant, observed at high frequencies, was attributed to the oxidation of the mediator on the electrode surface, and the second time constant, at low frequencies, was attributed to the reduction of the mediator by the bacterial cells. For Martin et al [13], the high frequency signal was attributed to the trace of metallic salts and the low frequency signal to the charge transfer between electrode and biofilm.…”

Section: Characterization Of the Working Electrode System Without Biomentioning

confidence: 99%

“…This kind of equivalent circuit with two serial RC systems has already been used to describe anode systems in microbial fuel cells [12][13]. In these papers, the two RC systems were imputed to the presence of the biofilm.…”

Section: Characterization Of the Working Electrode System Without Biomentioning

confidence: 99%

“…EIS has been used to investigate the growth of biofilms on different microbial electrodes [3,[8][9], together with the effect of various parameters that influence the charge transfer resistance between biofilm and electrode, such as electrode material [6], pH [5,10], medium ionic strength [11] or the presence of microbially secreted mediators [12]. EIS has also shown the capability to monitor the evolution of the microbial community during the formation of an electroactive biofilm [13].…”

Section: Introductionmentioning

confidence: 99%

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Electrochemical characterization of microbial bioanodes formed on a collector/electrode system in a highly saline electrolyte

Rousseau

Rimboud

Délia

et al. 2015

Bioelectrochemistry

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Bioanodes were formed with electrodes made of carbon felt and equipped with a titanium electrical collector, as commonly used in microbial fuel cells. Electrochemical impedance spectroscopy (EIS) performed on the abiotic electrode system evidenced two time constants, one corresponding to the "collector/carbon felt" contact, the other to the "carbon felt/solution" interface. Such a two time constant system was characteristics of the two-material electrode, independent of biofilm presence. EIS was then performed during the bioanode formation around the constant applied potential of 0.1 V/SCE. The equivalent electrical model was similar to that of the abiotic system. Due to the high salinity of the electrolyte (45 g·L(-1) NaCl) the electrolyte resistance was always very low. The bioanode development induced kinetic heterogeneities that were taken into account by replacing the pure capacitance of the abiotic system by a constant phase element for the "carbon felt/solution" interface. The current increase from 0 to 20.6 A·m(-2) was correlated to the considerable decrease of the charge transfer resistance of the "carbon felt/solution" interface from 2.4 10(4) to 92 Ω·cm(2). Finally, EIS implemented at 0.4 V/SCE showed that the limitation observed at high potential values was not related to mass transfer but to a biofilm-linked kinetics.

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Section: Eis During Bioanode Developmentmentioning

confidence: 88%

Section: Characterization Of the Working Electrode System Without Biomentioning

confidence: 99%

Section: Characterization Of the Working Electrode System Without Biomentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Electrochemical characterization of microbial bioanodes formed on a collector/electrode system in a highly saline electrolyte

Rousseau

Rimboud

Délia

et al. 2015

Bioelectrochemistry

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“…-Monitoring the state-of-health of a PEMFC with respect to the water content of the membrane electrode assembly [46,47]; -Analyzing the reaction kinetics and interfacial characteristics of an anode in a DMFC [48]; -Characterizing the output power dynamics of a SOFC for management by a control system [49]; -Monitoring the anode colonization by electrode-reducing micro-organisms in an MFC [50].…”

Section: Fuel Cell Modelsmentioning

confidence: 99%

Fractional-order models of supercapacitors, batteries and fuel cells: a survey

Freeborn

Maundy

Elwakil

2015

Mater Renew Sustain Energy

167

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This paper surveys fractional-order electric circuit models that have been reported in the literature to best fit experimentally collected impedance data from energy storage and generation elements, including super-capacitors, batteries, and fuel cells. In all surveyed models, the employment of fractional-order capacitors, also known as constant phase elements, is imperative not only to the accuracy of the model but to reflect the physical electrochemical properties of the device.

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High‐Performance Carbon Anode Derived from Sugarcane for Packed Microbial Fuel Cells

Zhou

Yin

et al. 2016

ChemElectroChem

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Microbial fuel cells (MFCs) provide a new opportunity to produce sustainable energy from the treatment of the organic matter in wastewater. However, the power density of MFCs for large‐scale application is limited by the performance of anode, with one of the major factors being low bacterial adhesion capacity. In this work, a novel macroporous sugarcane carbon (SC) is prepared by a direct carbonization process, and is used as anode material in a packed MFC. A maximum power density of 59.94±2.81 W m−3 is achieved in an MFC equipped with the SC anode, which is 2.62 times higher than that of the granular activated carbon (GAC) anode. A microbial analysis shows that the SC anode has a higher amount of biomass and the abundance of Geobacter is 6.6 times higher than that of the GAC anode, which indicates that the SC anode has higher biocompatibility. Further studies show that the macroporous structure, high surface roughness, large surface hydrophobicity and low absolute value of zeta potential favor bacterial adhesion to the SC anode surface. Therefore, this study provides an excellent anode material for high‐performance MFCs, and reveals the impact of physicochemical properties on power generation.

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Electrochemical characterization of anodic biofilm development in a microbial fuel cell

Cited by 43 publications

References 36 publications

Electrochemical characterization of microbial bioanodes formed on a collector/electrode system in a highly saline electrolyte

Electrochemical characterization of microbial bioanodes formed on a collector/electrode system in a highly saline electrolyte

Fractional-order models of supercapacitors, batteries and fuel cells: a survey

High‐Performance Carbon Anode Derived from Sugarcane for Packed Microbial Fuel Cells

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