Nitrogen doped carbon nanoparticles enhanced extracellular electron transfer for high-performance microbial fuel cells anode.
Chemosphere
; 140: 26-33, 2015 Dec.
Article
en En
| MEDLINE
| ID: mdl-25439129
ABSTRACT
Nitrogen doped carbon nanoparticles (NDCN) were applied to modify the carbon cloth anodes of microbial fuel cells (MFCs) inoculated with Shewanella oneidensis MR-1, one of the most well-studied exoelectrogens. Experimental results demonstrated that the use of NDCN increased anodic absorption of flavins (i.e., the soluble electron mediator secreted by S. oneidensis MR-1), facilitating shuttle-mediated extracellular electron transfer. In addition, we also found that NDCN enabled enhanced contact-based direct electron transfer via outer-membrane c-type cytochromes. Taken together, the performance of MFCs with the NDCN-modified anode was enormously enhanced, delivering a maximum power density 3.5 times' higher than that of the MFCs without the modification of carbon cloth anodes.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Fuentes de Energía Bioeléctrica
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Carbono
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Nanopartículas
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Nitrógeno
Idioma:
En
Revista:
Chemosphere
Año:
2015
Tipo del documento:
Article
País de afiliación:
Singapur