Journal
ELECTROCHIMICA ACTA
Volume 391, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2021.138984
Keywords
Microbial fuel cell; alpha-Fe2O3 nanofibers; Carbon nanotubes; Power density
Categories
Funding
- National Natural Science Foundation of China (NSFC) [51973015, 21274006]
- Postdoctoral Science Foundation of China [2019M660019]
- Beijing Natural Science Foundation [2202029]
- Fundamental Research Funds for the Central Universities [0650010 0, FRF-TP-19046AIZ]
- Beijing youth talent promotion project
- Ten thousand plan-National High-level personnel of special support program, China
Ask authors/readers for more resources
Decorated anodes integrated with electrospun porous alpha-Fe2O3 nanofibers and carbon nanotubes have been developed for microbial fuel cells, achieving excellent power density and COD removal efficiency. This strategy shows potential for power production and pollutant removal by promoting bacterial attachment and electron transfer.
Microbial fuel cell (MFC) is a potential technology for bioelectricity generation from waste. Unfortunately, it is still a challenge for practical application due to the low power density. Immense efforts have been extended to boost the design of bioanode, mainly including the improvement on bacterial adhesion and extracellular electron transfer (EET) between bacteria and anode. Herein, electrospun porous alpha-Fe2O3 nanofibers integrated with carbon nanotubes (CNTs) are developed for MFC. Benefiting from the good electricity, ultrahigh porosity and three-dimensional interpenetrated network of fabricated CNTs/alpha-Fe2O3, the decorated anode is capable of enriching active bacteria and promoting effective EET rate. Consequently, the MFC based on CNTs/alpha-Fe2O3 nanofibers as anode achieves the eminent power density of 1959 mW/m(2) and high COD removal efficiency of 85.04%, superior to that of alpha-Fe2O3 anode (940 mW/m(2); 81.66%) and bulk carbon cloth anode (432 mW/m(2); 65.83%). More importantly, the CNTs/alpha-Fe2O3 modified anode is favorable for electrogenic active bacteria attachment, thus improving the bioelectricity performance. The consequence suggests that this strategy can offer a potential application in power production and pollutant removal. (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