Influence of the preparation method of MnO2-based cathodes on the performance of single-chamber MFCs using wastewater

Touach, Noureddine; Ortiz-Martínez, V.M.; Salar-García, M.J.; Benzaouak, Abdellah; Hernández-Fernández, F.J.; Ríos, Antonia Pérez de los; Labjar, Najoua; Louki, S.; Mahi, Mohammed El; Lotfi, El Mostapha

doi:10.1016/j.seppur.2016.07.031

Cited by 35 publications

(6 citation statements)

References 44 publications

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“…The samples of L10 and L40 wt% had similar degradation ability from 432 to 190 mg/L and 480 to 200 mg/L. This was because the loading rates of 10 and 40 wt% were insufficient to provide functional groups such as hydroxyl, phosphate and sulfate that can bind to metal ions . This might have affected the removal efficiency in the MFCs.…”

Section: Resultsmentioning

confidence: 99%

“…This was because the loading rates of 10 and 40 wt% were insufficient to provide functional groups such as hydroxyl, phosphate and sulfate that can bind to metal ions. 52 This might have affected the removal efficiency in the MFCs. Figure 5F shows that after 216 hours, BEF-MFCs operated with L0 and L70 wt% in cathode electrode had COD removal efficiencies of 54.4% and 78%, respectively, which when compared with general electro-Fenton reactions were effective for organic pollutant degradation [53][54][55][56] (in Table 2) and can be cost-effective for procuring Fe 2+ source by using NDC-M100/Fe 3 O 4 catalyst.…”

Section: Electrochemical Characterization Of Py-ndcn/fe 3 O 4 and Dmentioning

confidence: 99%

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Innovative multi‐processed N‐doped carbon and Fe ₃ O ₄ cathode for enhanced bioelectro‐Fenton microbial fuel cell performance

Yan

Chiang

et al. 2019

Int J Energy Res

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Summary A novel bioelectro‐Fenton microbial fuel cell (BEF‐MFC) cathode has been fabricated by modification of electrode using multi‐processing of nitrogen‐doped carbon (NDC)/nano‐Fe3O4 method with the aims of cost‐effectiveness, high oxygen reduction reaction (ORR) efficiency, and power performance enhancement. In this study, BEF‐MFC with carbon cloth (CC) cathode pyrolyzed with NDC‐M100/Fe3O4 at 700°C achieved higher ORR activity compared with the commercial Pt/C under same operational conditions. It also exhibited excellent crystalline structure according to high‐resolution transmission electron microscope (HRTEM) analysis. Moreover, using NDCN/Fe3O4 can facilitate further Fenton‐like reaction for the treatment of wastewater. Chemical oxygen demand (COD) removal efficiency of the reactor was 78% with maximum power density of 1.57 W/m3 in 216 hours. Thus, an innovative multi‐processing method with feasibility for enhanced wastewater treatment and improved power performance of the MFC was investigated. This can be effectively applied in related alternative energy production techniques and bio‐electrochemical systems in the future.

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Section: Resultsmentioning

confidence: 99%

Section: Electrochemical Characterization Of Py-ndcn/fe 3 O 4 and Dmentioning

confidence: 99%

Innovative multi‐processed N‐doped carbon and Fe ₃ O ₄ cathode for enhanced bioelectro‐Fenton microbial fuel cell performance

Yan

Chiang

et al. 2019

Int J Energy Res

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“…Electrodes consisted of GNPs (CAS# 9002-84-0) coated 30 mesh SSM as the anode of both anode chambers, and the big difference was cathode material that consisted of GNPs: PU 1:1 volume solution ratio-coated cathode at the code 1A, and GNPs-PTFE (CAS# 9002-84-0) 60% coated cathode at the code 2A. In addition, synthesized PU was water-based polyurethane [53] with a similar function to polytetrafluoroethylene (PTFE) [44,54,55] as a waterproofing material and increasing the oxygen reduction reaction (ORR) on the surface of the cathode material. The wiring system, called closed-circuit voltage (CCV) [56,57], connected the anode-equipped 100 Ω of resistor onto the data logger and cathode in a line.…”

Section: Methodsmentioning

confidence: 99%

Enhancement of Power Generation and Organic Removal in Double Anode Chamber Designed Dual-Chamber Microbial Fuel Cell (DAC-DCMFC)

Samudro

Imai

Hung

2021

Water

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One of the important factors in enhancing the performance of microbial fuel cells (MFCs) is reactor design and configuration. Therefore, this study was conducted to evaluate the regressors and their operating parameters affecting the double anode chamber–designed dual-chamber microbial fuel cell (DAC-DCMFC) performance. Its primary design consists of two anode chamber compartments equipped with a separator and cathode chamber. The DAC-DCMFCs were parallelly operated over 8 days (60 days after the acclimation period). They were intermittently pump-fed with the different organic loading rates (OLRs), using chemically enriched sucrose as artificial wastewater. The applied OLRs were adjusted at low, medium, and high ranges from 0.4 kg.m−3.d−1 to 2.5 kg.m−3.d−1. The reactor types were type 1 and type 2 with different cathode materials. The pH, temperature, oxidation-reduction potential (ORP), optical density 600 (OD600), chemical oxygen demand (COD), and total organic carbon (TOC) were measured, using standard analytical instruments. In general, the power production achieved a maximum of 866 ± 44 mW/m2, with a volumetric power density of 5.15 ± 0.26 W/m3 and coulombic efficiency of 84%. Two-stage COD and TOC removal at medium OLR achieved a range of 60–80%. Medium OLR is the recommended level to enhance power production and organic removal in DAC-DCMFC. The separated anode chambers into two parts in a dual anode chamber microbial fuel cell adjusted by various organic loadings expressed a preferable comprehension in the integrated MFCs for wastewater treatment.

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“…MnO 2 combined with carbon nanotube (CNT) and black acetylene (AB) have also been employed as alternative material in MFCs. Touach et al [32] reported that single chamber MFCs can produce a maximum power output of 69.54 and 47.42 mW.m −3 anode working with MnO 2 /CNT and MnO 2 / AB based cathodes, respectively. They achieved to increase the power density produced by including polytetrafluoroethylene as binder.…”

Section: Cyclic Voltammetrymentioning

confidence: 99%

Electrocodeposition method to synthesize low‐cost cathodes based on inert carriers for bioenergy production and wastewater treatment in microbial fuel cells

Guendouz

Salar-García

Ortiz-Martínez

et al. 2018

Env Prog and Sustain Energy

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In this work, platinum‐free based cathodes are investigated for their application in microbial fuel cells (MFCs). Carbon cloth and stainless steel grid were employed as different supporting materials for the electrodeposition of three types of inert carriers, for example, clay, silica, and aluminum‐nickel alloy, all of them combined with nickel. This work evaluates the potential of this technique in order to elaborate active MFC cathodes. The voltammograms obtained confirm both the reduction of protons, with the adsorption of hydrogen from −0.5 to −1.8 V, and the oxidation of water, producing sufficient current intensity to reduce oxygen. Among the options investigated, cathodes based on aluminum‐nickel alloy/nickel achieved the highest catalytic activity, being carbon cloth the most suitable supporting material. Thus, aluminum‐nickel alloy/nickel electrocodeposited onto carbon cloth exhibited the highest levels of power output (150 mW.m−3) when tested in MFCs fed with wastewater. This type of low cost cathodes also offers promising results for wastewater treatment reaching up to 90% of chemical oxygen demand removal. © 2018 American Institute of Chemical Engineers Environ Prog, 38:e13083, 2019

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Influence of the preparation method of MnO2-based cathodes on the performance of single-chamber MFCs using wastewater

Cited by 35 publications

References 44 publications

Innovative multi‐processed N‐doped carbon and Fe ₃ O ₄ cathode for enhanced bioelectro‐Fenton microbial fuel cell performance

Innovative multi‐processed N‐doped carbon and Fe ₃ O ₄ cathode for enhanced bioelectro‐Fenton microbial fuel cell performance

Enhancement of Power Generation and Organic Removal in Double Anode Chamber Designed Dual-Chamber Microbial Fuel Cell (DAC-DCMFC)

Electrocodeposition method to synthesize low‐cost cathodes based on inert carriers for bioenergy production and wastewater treatment in microbial fuel cells

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Influence of the preparation method of MnO2-based cathodes on the performance of single-chamber MFCs using wastewater

Cited by 35 publications

References 44 publications

Innovative multi‐processed N‐doped carbon and Fe 3 O 4 cathode for enhanced bioelectro‐Fenton microbial fuel cell performance

Innovative multi‐processed N‐doped carbon and Fe 3 O 4 cathode for enhanced bioelectro‐Fenton microbial fuel cell performance

Enhancement of Power Generation and Organic Removal in Double Anode Chamber Designed Dual-Chamber Microbial Fuel Cell (DAC-DCMFC)

Electrocodeposition method to synthesize low‐cost cathodes based on inert carriers for bioenergy production and wastewater treatment in microbial fuel cells

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Product

Resources

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Innovative multi‐processed N‐doped carbon and Fe ₃ O ₄ cathode for enhanced bioelectro‐Fenton microbial fuel cell performance

Innovative multi‐processed N‐doped carbon and Fe ₃ O ₄ cathode for enhanced bioelectro‐Fenton microbial fuel cell performance