scholarly journals Biofilm growth influences the electrochemistry of microbial fuel cells

2008 ◽  
Vol 101 (1) ◽  
pp. fmv-fmv
Keyword(s):  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Biofilm Growth

scholarly journals Modeling of Polarization Losses of a Microbial Fuel Cell

2014 ◽  
Author(s):  
Li Zhao ◽  
Jacob Brouwer ◽  
John Naviaux ◽  
Allon Hochbaum
Keyword(s):  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Energy Production ◽  
Polarization Curves ◽  
Electrochemical Kinetics ◽  
Simultaneous Treatment ◽  
Polarization Model ◽  
Biofilm Growth ◽  
Measured Polarization ◽  
Electrochemical Phenomena

Microbial fuel cells (MFCs) are promising for simultaneous treatment of wastewater and energy production. In this study, a mathematical model for microbial fuel cells with air cathodes was developed and demonstrated by integrating biochemical reactions, Butler–Volmer expressions and mass/charge balances. The model developed is focused on describing and understanding the steady-state polarization curves of the microbial fuel cells with various levels and methods of anode-biofilm growth with air cathodes. This polarization model combines enzyme kinetics and electrochemical kinetics, and is able to describe measured polarization curves for microbial fuel cells with different anode-biofilm growth. The MFC model developed has been verified with the experimental data collected. The simulation results provide insights into the limiting physical, chemical and electrochemical phenomena and their effects on cell performance. For example, the current MFC data demonstrated performance primarily limited by cathode electrochemical kinetics.

Bifunctional manganese oxide–silver nanocomposites anchored on graphitic mesoporous carbon to promote oxygen reduction and inhibit cathodic biofilm growth for long-term operation of microbial fuel cells fed with sewage

2022 ◽  
Author(s):  
Dena Z. Khater ◽  
R. S. Amin ◽  
Amani E. Fetohi ◽  
K. M. El-Khatib ◽  
Mohamed Mahmoud
Keyword(s):  
Fuel Cells ◽  
Manganese Oxide ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells ◽  
Mesoporous Carbon ◽  
Biofilm Growth ◽  
Term Operation ◽  
Silver Nanocomposites

Manganese oxide–silver nanocomposites anchored on graphitic mesoporous carbon were synthesized for enhancing oxygen reduction and inhibiting cathodic biofilm growth for the long-term operation of microbial fuel cells.

scholarly journals A Microfluidic Platform for Evaluating Anode Substrates for Microbial Fuel Cells

2012 ◽  
Author(s):  
A-Andrew D. Jones ◽  
Cullen R. Buie
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Microbial Fuel Cells ◽  
New Technology ◽  
Open Circuit ◽  
Green Energy ◽  
Geobacter Sulfurreducens ◽  
Biofilm Growth ◽  
Film Substrate

Microbial fuel cell technology is a new technology for producing green energy from wastewater. While lab scale and commercial microbial fuel cells typically utilize graphite as the film substrate, it is difficult to rapidly prototype micro-patterned graphite and it has not been used to date. Our design sandwiches graphite sheets under a channel layer creating a microfluidic microbial fuel cell with graphite electrodes. The microfluidic microbial fuel cell uses Geobacter sulfurreducens fed with acetate in a phosphate buffer media. Ferricyanide is used as the catholyte so that the system is anodically limited. Current versus time and open circuit voltage are reported showing biofilm growth microbial fuel cell operation.

Impact of initial biofilm growth on the anode impedance of microbial fuel cells

2008 ◽  
Vol 101 (1) ◽  
pp. 101-108 ◽  
Author(s):  
Ramaraja P. Ramasamy ◽  
Zhiyong Ren ◽  
Matthew M. Mench ◽  
John M. Regan
Keyword(s):  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Biofilm Growth ◽  
Initial Biofilm
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