Journal
ENERGY
Volume 223, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.energy.2021.120103
Keywords
Fe@Fe2O3/NCQDs; Microbial fuel cells; Extracellular electron transfer; Electrodeposition technique
Categories
Funding
- Iranian National Science Foundation
- postgraduate office of Guilan University
Ask authors/readers for more resources
The Fe@Fe2O3/NCQDs anode provides a high effective surface area for the adhesion of microbe's cells and promotes favored electrical conductivity to facilitate EET from bacteria to the anode. The MFC equipped with Fe@Fe2O3/NCQDs as activated anode delivers a maximum power density of 836 +/- 8 mW/m(2), which is 87% higher compared to instances when NCQDs is applied as anode electrocatalyst. This work opens a door toward an effective route to microbial anode electrode to produce sustainable green energy.
Microbial fuel cells have recently received significant consideration from researchers worldwide as sustainable and futuristic energy due to their potential in converting energy from decomposition of natural organisms in waste to green electricity. Unfortunately, the difficulty of achieving high power due to poor extracellular electron transfer (EET) efficiency between microorganisms and the solid substrate, besides low bacterial loading capacity has limited their applications to date. Herein, iron/iron oxide (Fe@Fe2O3) nanoparticles incorporated with nitrogen-doped carbon quantum dots (NCQDs) are synthesized via using an effective and simple electrodeposition technique. Fe@Fe2O3/NCQDs anode provides not only a high effective surface area for the adhesion of microbe's cells but also promotes favored electrical conductivity to facilitate EET from bacteria to the anode in the mixed culture-based MFCs. Considerably, at a steady-state of the electricity production, the MFC equipped with Fe@Fe2O3/NCQDs as activated anode delivers a maximum power density of 836 +/- 8 mW/m(2), which is 87% higher compared to instances when NCQDs (446 +/- 11 mW/m(2)) is applied as anode electrocatalyst. This work opens a door toward an effective route to microbial anode electrode to produce sustainable green energy. (c) 2021 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available