Driving force of the better performance of metal-doped carbonaceous anodes in microbial fuel cells

A comparison between different metal-doped carbonaceous anodes for air-breathing microbial fuel cells (MFCs) has been carried out in this work. In order to do that, the surface of carbon paper anodes were modified with Pt, Au and Ni. The current generated was higher when using these metal-doped anod...

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Autores: Mateo, Sara, Cañizares Cañizares, Pablo, Rodrigo Rodrigo, Manuel Andrés, Fernández Morales, Francisco Jesús
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universidad de Castilla-La Mancha
Repositorio:RUIdeRA. Repositorio Institucional de la UCLM
OAI Identifier:oai:ruidera.uclm.es:10578/28895
Acceso en línea:http://hdl.handle.net/10578/28895
Access Level:acceso abierto
Palabra clave:Electroquímica
Combustibles
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spelling Driving force of the better performance of metal-doped carbonaceous anodes in microbial fuel cellsMateo, SaraCañizares Cañizares, PabloRodrigo Rodrigo, Manuel AndrésFernández Morales, Francisco JesúsElectroquímicaCombustiblesA comparison between different metal-doped carbonaceous anodes for air-breathing microbial fuel cells (MFCs) has been carried out in this work. In order to do that, the surface of carbon paper anodes were modified with Pt, Au and Ni. The current generated was higher when using these metal-doped anodes, exerting up to 7.4 A m−2 more than when using non-doped ones. Polarization curves results in a great performance of the Ni reaching 2.92 W m−2 at the steady state, followed by 0.99 W m−2 of the Au and 0.52 W m−2 of the Pt. Additionally, from the mathematical fitting of a model to the experimental data of a polarization curve, it was observed that the mechanism that explains the better performance of the metal doped anodes was the reduction of the mass transfer limitations. In this sense, the addition of metal on the anodes increase the threshold current density causing mass transfer limitations, reducing also the significance of the mass transfer limitations when the cells are operated under conditions in which the process is diffusion controlled.Elsevier202120212018info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttp://hdl.handle.net/10578/28895reponame:RUIdeRA. Repositorio Institucional de la UCLMinstname:Universidad de Castilla-La ManchaInglésinfo:eu-repo/semantics/openAccessoai:ruidera.uclm.es:10578/288952026-05-27T07:36:41Z
dc.title.none.fl_str_mv Driving force of the better performance of metal-doped carbonaceous anodes in microbial fuel cells
title Driving force of the better performance of metal-doped carbonaceous anodes in microbial fuel cells
spellingShingle Driving force of the better performance of metal-doped carbonaceous anodes in microbial fuel cells
Mateo, Sara
Electroquímica
Combustibles
title_short Driving force of the better performance of metal-doped carbonaceous anodes in microbial fuel cells
title_full Driving force of the better performance of metal-doped carbonaceous anodes in microbial fuel cells
title_fullStr Driving force of the better performance of metal-doped carbonaceous anodes in microbial fuel cells
title_full_unstemmed Driving force of the better performance of metal-doped carbonaceous anodes in microbial fuel cells
title_sort Driving force of the better performance of metal-doped carbonaceous anodes in microbial fuel cells
dc.creator.none.fl_str_mv Mateo, Sara
Cañizares Cañizares, Pablo
Rodrigo Rodrigo, Manuel Andrés
Fernández Morales, Francisco Jesús
author Mateo, Sara
author_facet Mateo, Sara
Cañizares Cañizares, Pablo
Rodrigo Rodrigo, Manuel Andrés
Fernández Morales, Francisco Jesús
author_role author
author2 Cañizares Cañizares, Pablo
Rodrigo Rodrigo, Manuel Andrés
Fernández Morales, Francisco Jesús
author2_role author
author
author
dc.subject.none.fl_str_mv Electroquímica
Combustibles
topic Electroquímica
Combustibles
description A comparison between different metal-doped carbonaceous anodes for air-breathing microbial fuel cells (MFCs) has been carried out in this work. In order to do that, the surface of carbon paper anodes were modified with Pt, Au and Ni. The current generated was higher when using these metal-doped anodes, exerting up to 7.4 A m−2 more than when using non-doped ones. Polarization curves results in a great performance of the Ni reaching 2.92 W m−2 at the steady state, followed by 0.99 W m−2 of the Au and 0.52 W m−2 of the Pt. Additionally, from the mathematical fitting of a model to the experimental data of a polarization curve, it was observed that the mechanism that explains the better performance of the metal doped anodes was the reduction of the mass transfer limitations. In this sense, the addition of metal on the anodes increase the threshold current density causing mass transfer limitations, reducing also the significance of the mass transfer limitations when the cells are operated under conditions in which the process is diffusion controlled.
publishDate 2018
dc.date.none.fl_str_mv 2018
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10578/28895
url http://hdl.handle.net/10578/28895
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:RUIdeRA. Repositorio Institucional de la UCLM
instname:Universidad de Castilla-La Mancha
instname_str Universidad de Castilla-La Mancha
reponame_str RUIdeRA. Repositorio Institucional de la UCLM
collection RUIdeRA. Repositorio Institucional de la UCLM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.301603

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