scholarly journals Single-Chamber Microbial Fuel Cells’ Behavior at Different Operational Scenarios

Energies ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 5458
Author(s):  
Sameer Al-Asheh ◽  
Yousef Al-Assaf ◽  
Ahmed Aidan
Keyword(s):  
Fuel Cell ◽  
Electron Transport ◽  
Microbial Fuel Cell ◽  
Microbial Fuel Cells ◽  
Copper Sulphate ◽  
Operating Parameters ◽  
Carbon Cloth ◽  
Potassium Hexacyanoferrate ◽  
Copper Aluminum ◽  
Power Outputs

A Microbial Fuel Cell (MFC) is a process in which a microorganism respires and captures the electrons that normally passes through the electron transport system of the organism and produces electricity. This work intends to present the different operating parameters affecting the efficiency of a Microbial Fuel Cell (MFC) process. To study the performance of the process, various materials for the cathode and anode rods with similar size and chape including, copper, aluminum, carbon cloth, steel and brass were considered to determine the combination that leads to the best results. Moreover, different oxidizing agents such as Copper Sulphate and Potassium Hexacyanoferrate were considered. Furthermore, the effects of shapes, sizes and distance between electrodes on the current and voltage were investigated. The power outputs between electrochemical and microbial cells were recorded. In addition, the power, whether expressed as voltage or current, was measured at different conditions and different cell combinations. The power is directly related to the area, volume of the bacterial solution and supplying air and stirring.

Heterocyclic aminopyrazine–reduced graphene oxide coated carbon cloth electrode as an active bio-electrocatalyst for extracellular electron transfer in microbial fuel cells

RSC Advances ◽  
2016 ◽  
Vol 6 (73) ◽  
pp. 68827-68834 ◽  
Author(s):  
Praveena Gangadharan ◽  
Indumathi M. Nambi ◽  
Jaganathan Senthilnathan ◽  
Pavithra V. M.
Keyword(s):  
Electron Transfer ◽  
Graphene Oxide ◽  
Fuel Cell ◽  
Reduced Graphene Oxide ◽  
Microbial Fuel Cell ◽  
Microbial Fuel Cells ◽  
Extracellular Electron Transfer ◽  
Carbon Cloth ◽  
Reduced Graphene ◽  
Coated Carbon

In the present study, a low molecular heterocyclic aminopyrazine (Apy)–reduced graphene oxide (r-GO) hybrid coated carbon cloth (r-GO–Apy–CC) was employed as an active and stable bio-electro catalyst in a microbial fuel cell (MFC).

scholarly journals Using Shewanella Oneidensis MR1 as a Biocatalyst in a Microscale Microbial Fuel Cell

2013 ◽  
Author(s):  
Jie Yang ◽  
Sasan Ghobadian ◽  
Reza Montazami ◽  
Nastaran Hashemi
Keyword(s):  
Power Generation ◽  
Fuel Cells ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Power Density ◽  
Microbial Fuel Cells ◽  
Shewanella Oneidensis ◽  
Proton Exchange ◽  
Carbon Cloth ◽  
Anode Chamber

Microbial fuel cell (MFC) technology is a promising area in the field of renewable energy because of their capability to use the energy contained in wastewater, which has been previously an untapped source of power. Microscale MFCs are desirable for their small footprints, relatively high power density, fast start-up, and environmentally-friendly process. Microbial fuel cells employ microorganisms as the biocatalysts instead of metal catalysts, which are widely applied in conventional fuel cells. MFCs are capable of generating electricity as long as nutrition is provided. Miniature MFCs have faster power generation recovery than macroscale MFCs. Additionally, since power generation density is affected by the surface-to-volume ratio, miniature MFCs can facilitate higher power density. We have designed and fabricated a microscale microbial fuel cell with a volume of 4 μL in a polydimethylsiloxane (PDMS) chamber. The anode and cathode chambers were separated by a proton exchange membrane. Carbon cloth was used for both the anode and the cathode. Shewanella Oneidensis MR-1 was chosen to be the electrogenic bacteria and was inoculated into the anode chamber. We employed Ferricyanide as the catholyte and introduced it into the cathode chamber with a constant flow rate of approximately 50 μL/hr. We used trypticase soy broth as the bacterial nutrition and added it into the anode chamber approximately every 15 hours once current dropped to base current. Using our miniature MFC, we were able to generate a maximum current of 4.62 μA.

scholarly journals A paper-based microbial fuel cell operating under continuous flow condition

TECHNOLOGY ◽  
2016 ◽  
Vol 04 (02) ◽  
pp. 98-103 ◽  
Author(s):  
Niloofar Hashemi ◽  
Joshua M. Lackore ◽  
Farrokh Sharifi ◽  
Payton J. Goodrich ◽  
Megan L. Winchell ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Microbial Fuel Cells ◽  
Flow Condition ◽  
Continuous Flow ◽  
Carbon Cloth ◽  
Sem Images ◽  
Continuous Flow Condition ◽  
Duration Of Operation

Microbial fuel cells have gained popularity as a viable, environmentally friendly alternative for the production of energy. However, the challenges in miniaturizing the system for application in smaller devices as well as the short duration of operation have limited the application of these devices. Here, the capillary motion was employed to design a self-pumped paper-based microbial fuel cell operating under continuous flow condition. A proof-of-concept experiment ran approximately 5 days with no outside power or human interference required for the duration of operation. Shewanella oneidensis MR-1 was used to create a maximum current of 52.25 µA in a 52.5 µL paper-based microfluidic device. SEM images of the anode following the experiment showed biofilm formation on the carbon cloth electrode. The results showed a power density of approximately 25 W/m3 and proved unique capabilities of the paper-based microbial fuel cells to produce energy for an extended period of time.

scholarly journals INFLUENCE OF CARBON BASED ELECTRODES ON THE PERFORMANCE OF THE MICROBIAL FUEL CELL

2017 ◽  
Vol 5 (4RAST) ◽  
pp. 7-16
Author(s):  
Omkar S Powar ◽  
Lakshminarayana Bhatta ◽  
Raghavendra Prasad ◽  
Krishna Venkatesh ◽  
A.V. Raghu
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
High Power ◽  
Microbial Fuel Cells ◽  
Bacillus Coagulans ◽  
Open Circuit ◽  
Carbon Cloth ◽  
Anode Chamber ◽  
Graphite Sheet ◽  
Fuel Cell Performance

In this study electricity generation was evaluated in a two chambered microbial fuel cell. Performance of microbial fuel cells using two bacteria, Klebsiella pneumoniae and Bacillus coagulans and using three different electrodes namely graphite blocks, carbon cloth and graphite sheet was studied. The device was operated under anaerobic condition in the anode chamber and parameters were recorded for a period of 48 hours. The performance of MFC was analyzed by the measurement of open circuit voltage, polarization curves, impedance curves and cyclic voltammetry. Among different combinations of electrode tested, carbon cloth electrode produced high power density (80 mW/m2). Graphite block gave much high power compared to sheet. Finally, performance was compared with Shewanellaputrefaciens. The current study explores the applicability of carbon electrode for MFC applications.

A Study on Polythiophene Modified Carbon Cloth as Anode in Microbial Fuel Cell for Lead Removal

2021 ◽  
Author(s):  
Rajkumar Rajendran ◽  
Gnana Prakash Dhakshina Moorthy ◽  
Haribabu Krishnan ◽  
Sumisha Anappara
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Lead Removal ◽  
Carbon Cloth

scholarly journals Influence of electron transport media on the performance of MEMS-based microbial fuel cell

2021 ◽  
Vol 7 ◽  
pp. 1581-1587
Author(s):  
Song-Jeng Huang ◽  
Aristotle T. Ubando ◽  
Bo-Kay Xu ◽  
Alvin B. Culaba ◽  
Yu-An Lin ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Electron Transport ◽  
Microbial Fuel Cell

scholarly journals Lack of Electricity Production by Pelobacter carbinolicus Indicates that the Capacity for Fe(III) Oxide Reduction Does Not Necessarily Confer Electron Transfer Ability to Fuel Cell Anodes

2007 ◽  
Vol 73 (16) ◽  
pp. 5347-5353 ◽  
Author(s):  
Hanno Richter ◽  
Martin Lanthier ◽  
Kelly P. Nevin ◽  
Derek R. Lovley
Keyword(s):  
Electron Transfer ◽  
Fuel Cells ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Microbial Fuel Cells ◽  
Electron Donors ◽  
Rrna Genes ◽  
Anode Surface ◽  
Oxide Reduction ◽  
Fuel Cell Anodes

ABSTRACT The ability of Pelobacter carbinolicus to oxidize electron donors with electron transfer to the anodes of microbial fuel cells was evaluated because microorganisms closely related to Pelobacter species are generally abundant on the anodes of microbial fuel cells harvesting electricity from aquatic sediments. P. carbinolicus could not produce current in a microbial fuel cell with electron donors which support Fe(III) oxide reduction by this organism. Current was produced using a coculture of P. carbinolicus and Geobacter sulfurreducens with ethanol as the fuel. Ethanol consumption was associated with the transitory accumulation of acetate and hydrogen. G. sulfurreducens alone could not metabolize ethanol, suggesting that P. carbinolicus grew in the fuel cell by converting ethanol to hydrogen and acetate, which G. sulfurreducens oxidized with electron transfer to the anode. Up to 83% of the electrons available in ethanol were recovered as electricity and in the metabolic intermediate acetate. Hydrogen consumption by G. sulfurreducens was important for ethanol metabolism by P. carbinolicus. Confocal microscopy and analysis of 16S rRNA genes revealed that half of the cells growing on the anode surface were P. carbinolicus, but there was a nearly equal number of planktonic cells of P. carbinolicus. In contrast, G. sulfurreducens was primarily attached to the anode. P. carbinolicus represents the first Fe(III) oxide-reducing microorganism found to be unable to produce current in a microbial fuel cell, providing the first suggestion that the mechanisms for extracellular electron transfer to Fe(III) oxides and fuel cell anodes may be different.

scholarly journals Feasibility study of simultaneous azo dye decolorization and bioelectricity generation by microbial fuel cell-coupled constructed wetland: substrate effects

RSC Advances ◽  
2017 ◽  
Vol 7 (27) ◽  
pp. 16542-16552 ◽  
Author(s):  
Zhou Fang ◽  
Sichao Cheng ◽  
Hui Wang ◽  
Xian Cao ◽  
Xianning Li
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Constructed Wetlands ◽  
Microbial Fuel Cells ◽  
Azo Dye ◽  
Dye Decolorization ◽  
Dye Wastewater ◽  
Substrate Effects ◽  
Bioelectricity Generation ◽  
Azo Dye Decolorization

Microbial fuel cells (MFCs) were embedded into constructed wetlands to form microbial fuel cell coupled constructed wetlands (CW-MFCs) and were used for simultaneous azo dye wastewater treatment and bioelectricity generation.

scholarly journals A facile synthesis of molybdenum carbide nanoparticles-modified carbonized cotton textile as an anode material for high-performance microbial fuel cells

RSC Advances ◽  
2018 ◽  
Vol 8 (70) ◽  
pp. 40490-40497 ◽  
Author(s):  
Lizhen Zeng ◽  
Shaofei Zhao ◽  
Lixia Zhang ◽  
Miao He
Keyword(s):  
Fuel Cell ◽  
Porous Structure ◽  
Microbial Fuel Cell ◽  
Anode Material ◽  
Microbial Fuel Cells ◽  
High Performance ◽  
Molybdenum Carbide ◽  
Cotton Textile ◽  
Facile Synthesis ◽  
Step Method

A novel macroscale porous structure electrode, molybdenum carbide nanoparticles-modified carbonized cotton textile (Mo2C/CCT), was synthesized by a facile two-step method and used as anode material for high-performance microbial fuel cell (MFC).

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