Quantification of bio-anode capacitance in bioelectrochemical systems using Electrochemical Impedance Spectroscopy

Heijne, Annemiek ter; Liu, Dandan; Sulonen, Mira L.K.; Sleutels, Tom; Fabregat‐Santiago, Francisco

doi:10.1016/j.jpowsour.2018.08.003

Cited by 56 publications

(31 citation statements)

References 24 publications

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“…[45][46][47][48][49][50][51][52][53] The different possible combinations of MFC and power management systems are described in detail in a recent review. [54] Recently, also the capacitive features of MFCs anode [55][56][57][58] and cathode [59][60][61][62][63][64][65][66] electrodes have been explored considering the MFCs electrodes as the electrodes of an internal supercapacitor. Therefore, MFCs were discharged like a supercapacitor and the electrodes were self-recharged thanks to different anaerobic and aerobic environments occurring on the MFC anode and cathode.…”

Section: Introductionmentioning

confidence: 99%

Boosting Microbial Fuel Cell Performance by Combining with an External Supercapacitor: An Electrochemical Study

et al. 2020

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Microbial fuel cells (MFCs), despite representing a promising technology, suffer from low power generation that hinders, in most of the cases, their application as power sources. In fact, MFCs are usually coupled with supercapacitors or batteries and these storage units accumulate the energy harvested by MFCs and deliver it on demand. In this work, the electrodes of a MFC are used as electrodes of an internal supercapacitor and discharges and self‐recharges are performed and investigated. Discharges between 1.5 mA and 4 mA were presented producing a maximum power of 1.59 mW. Discharges between 1 mA and 100 mA and recharges are systematically studied for three commercial supercapacitors (SCs) with different capacitances of 1 F, 3 F, and 6 F. The MFC was also connected in parallel with external SCs and discharged galvanostatically. The SC was self‐recharged by the MFC without any additional external power sources. At lower current pulses, the MFC contributed to the overall capacitance, probably owing to its faradaic component. At higher current pulses, the use of SCs enables the energy to be harvested by MFCs at power levels that could not be achieved with the MFC alone. This study demonstrates that, through the proper connection and operation mode of the MFC and SC, it is possible to improve and maximize the performance of every single unit. Understanding the MFC−SC combination is important for identifying the right practical application for which the combination is suitable.

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Section: Introductionmentioning

confidence: 99%

Boosting Microbial Fuel Cell Performance by Combining with an External Supercapacitor: An Electrochemical Study

et al. 2020

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“…[ 41 ] The values observed with and without lipid are actually comparable to the electrical double layer capacitance of bare FTO. [ 42 ] Despite the structure defects, pore‐enveloping lipid assemblies supported by mesoporous silica thin film are still promising for examining the function of transmembrane proteins where the pores provide a reservoir below the protein. [ 7 ] Strategies to eliminate defects include surface modification, using charged lipids, changing the lipid composition, and changing the deposition method.…”

Section: Resultsmentioning

confidence: 99%

Nanoconfinement Effects on Redox Probe Transport in Lipid Assemblies on and in Mesoporous Silica Thin Films

Zhou

Guilfoil

et al. 2020

Adv Materials Inter

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Redox probe transport through supported lipid bilayers and nanopore‐confined lipid assemblies on silica thin films is examined using electrochemical impedance spectroscopy (EIS). These supported lipid systems are emerging biomimetic separation and sensor platforms. The ability to quantify the accessibility of the pore structure of the mesoporous silica thin films is demonstrated, which is essential for the incorporation of carriers into the lipids for selective solute transport. Redox probe molecules with varying hydrophilicity are used to compare ion transport in supported lipid pore‐spanning bilayers (enveloped bilayers) and novel lipid filled pores of mesoporous silica thin films. The films feature orthogonally oriented 8–10 nm cylindrical nanopores formed by deposition of P123‐templated silica sols onto chemically modified fluorine‐doped tin oxide. Nanopore accessibility is confirmed by EIS with hydrophilic probe 1,1′‐ferrocenedimethanol (FDM). Filling the pores with lipid 1,2‐dipalmitoyl‐sn‐glycero‐3‐phosphocholine results in a superior barrier (with roughly 1/9 the permeability) to transport of FDM compared to fragile enveloped lipid bilayers deposited by vesicle fusion. The pore‐confined lipids not only provide a better barrier to FDM, but also a better pathway for the transport across the films of a hydrophobic redox probe 1,1′‐dioctadecyl‐4,4′‐bipyridinium dibromide, with an ideal transport selectivity of 11 compared to FDM.

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“…The resistances determined by the EIS data fitting with the equivalent circuit are presented in Table 2. The charge transfer resistances Rct1 was found slightly lower than the Rct2 indicating a fast charge transfer between the yeast cells at biofilm as the electrode (ter Heijne et al, 2018). The mass transfer resistance was found to be significantly higher compared to the other resistances indicating poor diffusivity might be due to the higher diffusion path (M Amirul Islam, Ethiraj, Cheng, Yousuf, & Khan, 2018).…”

Section: Eis Analysismentioning

confidence: 98%

“…The Nyquist plot formed a semicircle at higher frequency region followed by a tail at medium to lower frequency region. Typically, the high frequency impedance limit indicates the ohmic resistance (Rs) and the diameter of the semicircle arc represents the charge transfer resistance (Rct) (ter Heijne, Liu, Sulonen, Sleutels, & Fabregat-Santiago, 2018). Bode plot is presented in Figure 4(b) be representing the information of impedance, frequency and phase angle (He & Mansfeld, 2009).…”

Section: Eis Analysismentioning

confidence: 99%

“…The charge transfer resistance at the electrode/biofilm interface is represented by Rct1, whereas the charge transfer resistance across the biofilm/solution interface is represented by Rct2 (ter Heijne et al, 2018). The diffusion process can be characterized by diffusion resistance (Rd) which is the portion of the real axis between the vertical capacitance line and the high-frequency tail of the semicircle surface (ter Heijne et al, 2018). Rd is calculated by the following equation (Ruffo, Hong, Chan, Huggins, & Cui, 2009).…”

Section: Eis Analysismentioning

confidence: 99%

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Peformance Evaluation of Petrochemical Wastewater Fed Air-Cathode Microbial Fuel Cells Using Yeast Biocatalyst

Sarmin¹,

Ideris²,

Chin³

et al. 2018

JCEIB

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This paper presents the performance of air-cathode microbial fuel cell (AC-MFC) treating the petrochemical wastewater (PCW) from acrylic acid plant. The wastewater which is typically incinerated and possesses very high chemical oxygen demand (COD) due to presence of acrylic acid along with other organic acids. The goal of the present study is to evaluate the viability of treating the wastewater using yeast (Saccharomyces cerevisiae) as biocatalyst in AC-MFC for simultaneous treatment of wastewater and electricity generation. This study demonstrates that Saccharomyces cerevisiae could function as a good biocatalyst producing high power density of 0.24 W/m3 using PCW with an initial COD of 26,000 mg/L. The COD removal efficiency and the columbic efficiency (CE) were found as 38% and 23.6% respectively. The electron transfer process across the electrode/biofilm/solution interface was analyzed by electrochemical impedance spectroscopy (EIS). The present work demonstrates the potential of MFC for the treatment of acrylic acid plant PCW using Saccharomyces cerevisiae as biocatalyst.

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Quantification of bio-anode capacitance in bioelectrochemical systems using Electrochemical Impedance Spectroscopy

Cited by 56 publications

References 24 publications

Boosting Microbial Fuel Cell Performance by Combining with an External Supercapacitor: An Electrochemical Study

Boosting Microbial Fuel Cell Performance by Combining with an External Supercapacitor: An Electrochemical Study

Nanoconfinement Effects on Redox Probe Transport in Lipid Assemblies on and in Mesoporous Silica Thin Films

Peformance Evaluation of Petrochemical Wastewater Fed Air-Cathode Microbial Fuel Cells Using Yeast Biocatalyst

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