Tailoring Surface Properties of Electrodes for Synchronous Enhanced Extracellular Electron Transfer and Enriched Exoelectrogens in Microbial Fuel Cells

2021 ◽  
Author(s):  
Yunfei Li ◽  
Jia Liu ◽  
Xuepeng Chen ◽  
Jingxuan Wu ◽  
Nan Li ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Fuel Cells ◽  
Surface Properties ◽  
Microbial Fuel Cells ◽  
Extracellular Electron Transfer

Bioenergetics and extracellular electron transfer in microbial fuel cells and microbial corrosion

2021 ◽  
pp. 100830
Author(s):  
Enze Zhou ◽  
Yassir Lekbach ◽  
Tingyue Gu ◽  
Dake Xu
Keyword(s):  
Electron Transfer ◽  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Extracellular Electron Transfer ◽  
Microbial Corrosion

scholarly journals Taxonomic and functional metagenomic analysis of anodic communities in two pilot-scale microbial fuel cells treating different industrial wastewaters

2015 ◽  
Vol 12 (3) ◽  
pp. 1-15 ◽  
Author(s):  
Larisa Kiseleva ◽  
Sofya K. Garushyants ◽  
Hongwu Ma ◽  
David J.W. Simpson ◽  
Viatcheslav Fedorovich ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Wastewater Treatment ◽  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Pilot Scale ◽  
Metagenomic Analysis ◽  
Anode Surface ◽  
Extracellular Electron Transfer ◽  
Climatic Zones ◽  
Electrochemically Active

Summary The combined processes of microbial biodegradation accompanied by extracellular electron transfer make microbial fuel cells (MFCs) a promising new technology for cost-effective and sustainable wastewater treatment. Although a number of microbial species that build biofilms on the anode surfaces of operating MFCs have been identified, studies on the metagenomics of entire electrogenic communities are limited. Here we present the results of wholegenome metagenomic analysis of electrochemically active robust anodic microbial communities, and their anaerobic digester (AD) sludge inocula, from two pilot-scale MFC bioreactors fed with different distillery wastewaters operated under ambient conditions in distinct climatic zones. Taxonomic analysis showed that Proteobacteria, Bacteroidetes and Firmicutes were abundant in AD sludge from distinct climatic zones, and constituted the dominant core of the MFC microbiomes. Functional analysis revealed species involved in degradation of organic compounds commonly present in food industry wastewaters. Also, accumulation of methanogenic Archaea was observed in the electrogenic biofilms, suggesting a possibility for simultaneous electricity and biogas recovery from one integrated wastewater treatment system. Finally, we found a range of species within the anode communities possessing the capacity for extracellular electron transfer, both via direct contact and electron shuttles, and show differential distribution of bacterial groups on the carbon cloth and activated carbon granules of the anode surface. Overall, this study provides insights into structural shifts that occur in the transition from an AD sludge to an MFC microbial community and the metabolic potential of electrochemically active microbial populations with wastewater-treating MFCs.

Microbially-reduced graphene scaffolds to facilitate extracellular electron transfer in microbial fuel cells

2012 ◽  
Vol 116 ◽  
pp. 453-458 ◽  
Author(s):  
Yong Yuan ◽  
Shungui Zhou ◽  
Bo Zhao ◽  
Li Zhuang ◽  
Yueqiang Wang
Keyword(s):  
Electron Transfer ◽  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Extracellular Electron Transfer ◽  
Reduced Graphene

Trace heavy metal ions promoted extracellular electron transfer and power generation by Shewanella in microbial fuel cells

2016 ◽  
Vol 211 ◽  
pp. 542-547 ◽  
Author(s):  
Yu-Shang Xu ◽  
Tao Zheng ◽  
Xiao-Yu Yong ◽  
Dan-Dan Zhai ◽  
Rong-Wei Si ◽  
...  
Keyword(s):  
Power Generation ◽  
Heavy Metal ◽  
Electron Transfer ◽  
Fuel Cells ◽  
Metal Ions ◽  
Microbial Fuel Cells ◽  
Heavy Metal Ions ◽  
Extracellular Electron Transfer

Shewanella oneidensis MR-1 Msh pilin proteins are involved in extracellular electron transfer in microbial fuel cells

2012 ◽  
Vol 47 (1) ◽  
pp. 170-174 ◽  
Author(s):  
Lisa A. Fitzgerald ◽  
Emily R. Petersen ◽  
Richard I. Ray ◽  
Brenda J. Little ◽  
Candace J. Cooper ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Shewanella Oneidensis ◽  
Extracellular Electron Transfer
Sign in / Sign up

Export Citation Format

Share Document