Electron transfer interpretation of the biofilm-coated anode of a microbial fuel cell and the cathode modification effects on its power

Yang, Yamin; Choi, Chansoo; Xie, Guorong; Park, Jong-Deok; Ke, Shao Jian; Yu, Jong‐Sung; Zhou, Juanjuan; Lim, Bongsu

doi:10.1016/j.bioelechem.2019.02.004

Cited by 18 publications

(8 citation statements)

References 11 publications

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“…Regarding MET, studies have shown that Shewanella strains can secrete soluble riboflavin, 18 which acts to mediate the electron transfer process 35 . This can promote electron transfer to electrodes and thus augment the electrical performance of MFCs 18,36‐38 . In our study, SAs had a negative effect on riboflavin concentration, which resulted in the declining electrical performance of MFCs.…”

Section: Discussionmentioning

confidence: 55%

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Effect of sulfonamides on the electricity generation by Shewanella putrefaciens in microbial fuel cells

Yang

Jiang

Liu

et al. 2020

Env Prog and Sustain Energy

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Overuse of antibiotics impacts environmental health worldwide. In this paper, the effect on the performance of microbial fuel cells (MFCs) under treatments with sulfonamides (SAs) was investigated. The results showed that when MCFs were treated with sulfamonomethoxine (SMM), the maximum power density was higher (20.95 mW/m 2) than when treated with sulfadiazine (SDZ) (19.79 mW/m 2). The power density of MFCs gradually decreased with increased concentration of SAs. Microbial activity analysis showed that SAs had negative effects on bacterial growth, riboflavin secretion and cell attachment on the MFCs anode. The power density of MFCs at different pH values was in order as follows: pH 6 > pH 7 > pH 8 > pH 5 > pH 9, where the highest was 22.90 mW/m 2 at pH 6. Electrochemical analysis showed that conditions favorable to the protonation of SMM also had a positive effect on the electrical performance of MFCs. These findings could provide the basis for uncovering the mechanism by which SAs affect electricity generation in MFCs, and demonstrates the feasibility for the efficient degradation of SAs and power generation.

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Section: Discussionmentioning

confidence: 55%

“…35 This can promote electron transfer to electrodes and thus augment the electrical performance of MFCs. 18,[36][37][38] In our study, SAs had a negative effect on riboflavin concentration, which resulted in the declining electrical performance of MFCs.…”

Section: Discussionmentioning

confidence: 59%

Effect of sulfonamides on the electricity generation by Shewanella putrefaciens in microbial fuel cells

Yang

Jiang

Liu

et al. 2020

Env Prog and Sustain Energy

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“…Therefore, based on this idea, by increasing and balancing the amount of carbon brush anode and carbon brush cathode material, the power of MFC battery can be multiplied. The amount of the anodic material needs to be more than that of the cathodic material to avoid concentration polarization quenching or power overshoot caused by depletion of electrons at the anode.…”

Section: Resultsmentioning

confidence: 99%

“…This method was repeated and the media was replaced when the voltage output dropped to below 50 mV. The anolyte was changed to growing media (GM), described as in the literature, after obtaining stable voltage generation with AW. The experimental runs were carried out after reaching a stable voltage for the MFC operation, which is indicative of proper biofilm formation.…”

Section: Methodsmentioning

confidence: 99%

High‐performance Microbial Fuel Cell Using Metal Ion Complexes as Electron Acceptors

Xie

Choi

2020

Bulletin Korean Chem Soc

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Metal complex‐microbial fuel cells (MFCs) have been investigated in this work with intent manufacturing highly efficient MFC batteries. The performance of metal complex MFCs was evaluated by polarization and discharge experiments using a battery consisting of three MFC unit cells. The results indicated that the performance of the [Fe(III)(4,4′‐dimethyl‐2,2′‐bipyridyl)3]‐MFC was much better than the other MFC containing Cr(VI) or Fe(III) as an electron acceptor. At a discharging current of 3 mA (17.6 A/m3), the average discharging potential was found to be 0.927 V under a parallel‐connection, sustaining longer than 20 h with an open circuit voltage of 1.210 V. [Fe(III)(4,4′‐dimethyl‐2,2′‐bipyridyl)3]‐MFC showed much higher electrochemical parameters than Cr(VI)‐MFC and Fe(III)‐MFC. Highest maximum power of 34.87 Wm−3 could be obtained from the battery consisting of three MFCs in parallel‐connection, when each cell contains a carbon brush anode and a graphite plate. MFC battery containing a carbon brush anode and a carbon brush cathode showed better polarization and discharging performance. In particular, the maximum power of 45.45 Wm−3 was achieved. By installing the maximum amount of carbon brush anode and adjusting the amount of carbon brush cathode and the electron acceptors, the magnitude of current and the maximum power can be maximized.

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“…The modification of the electrodes has been used as strategy to increase the transfer of electrons as reported by Yang et al [228] . They modeled the EET mechanism using the Marcus theory, based on this they modified the electrodes, specifically the used a mesoporous carbon-modified cathode and high surface area and then evaluated their performance on the MFC.…”

Section: Electron Transfer Mechanismmentioning

confidence: 99%

Contribution of configurations, electrode and membrane materials, electron transfer mechanisms, and cost of components on the current and future development of microbial fuel cells

Borja-Maldonado

Zavala

2022

Heliyon

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Electron transfer interpretation of the biofilm-coated anode of a microbial fuel cell and the cathode modification effects on its power

Cited by 18 publications

References 11 publications

Effect of sulfonamides on the electricity generation by Shewanella putrefaciens in microbial fuel cells

Effect of sulfonamides on the electricity generation by Shewanella putrefaciens in microbial fuel cells

High‐performance Microbial Fuel Cell Using Metal Ion Complexes as Electron Acceptors

Contribution of configurations, electrode and membrane materials, electron transfer mechanisms, and cost of components on the current and future development of microbial fuel cells

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