Anode Biofilm

Schechter, Michal; Schechter, Alex; Rozenfeld, Shmuel; Efrat, Emanuel; Cahan, Rivka

doi:10.5772/58432

Cited by 17 publications

(15 citation statements)

References 44 publications

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“…Low hydrogen production in MECs is mostly related to the bacterial anode activity. The limitations of the bioanode are attributed to the bacterial attachment, biofilm development, and handling of electroactive biofilm for a prolonged period [7]. The anode material should be highly conductive, support the biofilm attachment, be chemically stable and cost-effective.…”

Section: Lsv Measurements Of the Bioanodesmentioning

confidence: 99%

“…There are several anode materials that are currently under research [3,4]. Carbon-based materials are cost-effective and serve as electrodes in many configurations, such as carbon cloth [5][6][7], carbon fibers [8], carbon brush [9], graphite-fiber brush [10], graphite granules [11], and graphite plates [12]. Highly pure graphite is chemically more stable compared to carbon (e.g., carbon cloth or carbon felt), and, despite the higher cost of high-grade graphite, it is widely used as a bioanode [13].…”

Section: Introductionmentioning

confidence: 99%

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Improvement of Microbial Electrolysis Cell Activity by Using Anode Based on Combined Plasma-Pretreated Carbon Cloth and Stainless Steel

et al. 2019

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The anode activity in a microbial electrolysis cell (MEC) is known to be a limiting factor in hydrogen production. In this study, the MEC was constructed using different anode materials and a platinum-coated carbon-cloth cathode (CC). The anodes were comprised of CC, stainless steel (SS), and a combination of the two (COMB). The CC and SS anodes were also treated with plasma to improve their surface morphology and hydrophilic properties (CCP and SSP, respectively). A combined version of CCP attached to SS was also applied (COMBP). After construction of the MEC using the different anodes, we conducted electrochemical measurements and examination of biofilm viability. Under an applied voltage of 0.6 V (Ag/AgCl), the currents of a MEC based on CCP and COMBP were 11.66 ± 0.1331 and 16.36 ± 0.3172 A m−2, respectively, which are about three times higher compared to the untreated CC and COMB. A MEC utilizing an untreated SS anode exhibited current of only 0.3712 ± 0.0108 A m−2. The highest biofilm viability of 0.92 OD540 ± 0.07 and hydrogen production rate of 0.0736 ± 0.0022 m3 d−1 m−2 at 0.8 V were obtained in MECs based on the COMBP anode. To our knowledge, this is the first study that evaluated the effect of plasma-treated anodes and the use of a combined anode composed of SS and CC for hydrogen evolution in a MEC.

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Section: Lsv Measurements Of the Bioanodesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Improvement of Microbial Electrolysis Cell Activity by Using Anode Based on Combined Plasma-Pretreated Carbon Cloth and Stainless Steel

et al. 2019

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“…Exoelectrogenic bacteria transfer the electrons either directly to the anode surface via specialized protein-based nanowires and/or mediate them by secreting different soluble electron shuttles (reviewed by [88]). Bacteria form biofilms on the anode (reviewed by [89]). Correlation between increasing bacterial biomass on the anode and current is proven.…”

Section: Anodic Biofilm Vitality During Operation Of Mbfcmentioning

confidence: 99%

Nanostructured Composite Materials for Energy Storage and Conversion: collection of articles

Kleperis¹

2019

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Nanostrukturēti kompozītmateriāli enerģijas uzkrāšanai un pārveidošanai Rakstu krājums Projekta vadītājs Jānis Kleperis Rīga 2019 Nanostructured Composite Materials for Energy Storage and Conversion: collection of articles = Nanostrukturēti kompozītmateriāli enerģijas uzkrāšanai un pārveidošanai: rakstu krājums. Kleperis, J. (sast., proj. vad.). Rīga: LU Akadēmiskais apgāds, 2019, 157. lpp. Latvijas Universitātes Cietvielu fizikas institūta, Latvijas Valsts koksnes ķīmijas institūta, Rīgas Tehniskās universitātes Materiālzinātnes un lietišķās ķīmijas fakultātes Neorganiskās ķīmijas institūta, Latvijas Universitātes Ķīmijas fakultātes, Latvijas Universitātes Bioloģijas fakultātes zinātnieku pētnieciskie rezultāti LZP sadarbības projektā Nr. 666 2014.-2017. gadā. Reviewers / recenzenti: 1) Dr. habil. Yuriy A. Maletin,

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“…[5] Then, there is a method that uses biofilm instead of adding mediator to the anode chamber. Biofilm is a structured community of surface-associated microbial cells [6], [7]. Biofilm is studied in various fields such as environment, industry, medicine and so on.…”

Section: Introductionmentioning

confidence: 99%

Thick Activated Carbon Sheet Electrode and Hydrophobic Organic Matter Improve the Performance of Microbial Fuel Cell

Hayashi¹,

Nguyen²,

Taguchi³

2019

IJCEA

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Recently, there are a lot of environmental problems all over the world. Mass-consumption of fossil fuels contribute to depletion of them, emission of large amount of carbon dioxide, and global warming. However, fossil fuels are used everywhere and they are essential for modern life to get energy. A microbial fuel cell (MFC) is one of the new energy resources. This study focused on activated carbon sheet that has property of absorbing organic matter and large surface area. In this study, the experiment was conducted in eight conditions that were combined organic matter, kind of electrode and thickness of the electrode. Biofilm was built on two kinds of anodes that were made of carbon sheet and activated carbon sheet by using glucose or malt powder. The combination of using activated carbon sheet and malt powder produced maximum current density of 220 μA/cm 2.

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Anode Biofilm

Cited by 17 publications

References 44 publications

Improvement of Microbial Electrolysis Cell Activity by Using Anode Based on Combined Plasma-Pretreated Carbon Cloth and Stainless Steel

Improvement of Microbial Electrolysis Cell Activity by Using Anode Based on Combined Plasma-Pretreated Carbon Cloth and Stainless Steel

Nanostructured Composite Materials for Energy Storage and Conversion: collection of articles

Thick Activated Carbon Sheet Electrode and Hydrophobic Organic Matter Improve the Performance of Microbial Fuel Cell

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