Archaea-based microbial fuel cell operating at high ionic strength conditions

In this work, two archaea microorganisms (Haloferax volcanii and Natrialba magadii) used as biocatalyst at a microbial fuel cell (MFC) anode were evaluated. Both archaea are able to grow at high salt concentrations. By increasing the media conductivity, the internal resistance was diminished, improv...

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Autores principales:	Abrevaya, Ximena Celeste, Sacco, Natalia Jimena, Mauas, Pablo J.D., Cortón, Eduardo
Publicado:	2011
Materias:	Electricity generation Escherichia coli Haloferax volcanii MFC Nafion Natrialba magadii archaebacterium article bioenergy electrochemistry electrode growth, development and aging metabolism osmolarity Archaea Bioelectric Energy Sources Electrochemistry Electrodes Osmolar Concentration
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14310651_v15_n6_p633_Abrevaya http://hdl.handle.net/20.500.12110/paper_14310651_v15_n6_p633_Abrevaya
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_14310651_v15_n6_p633_Abrevaya
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spelling	paper:paper_14310651_v15_n6_p633_Abrevaya2023-06-08T16:14:06Z Archaea-based microbial fuel cell operating at high ionic strength conditions Abrevaya, Ximena Celeste Sacco, Natalia Jimena Mauas, Pablo J.D. Cortón, Eduardo Electricity generation Escherichia coli Haloferax volcanii MFC Nafion Natrialba magadii archaebacterium article bioenergy electrochemistry electrode growth, development and aging metabolism osmolarity Archaea Bioelectric Energy Sources Electrochemistry Electrodes Osmolar Concentration Archaea Escherichia coli Haloferax volcanii Natrialba magadii In this work, two archaea microorganisms (Haloferax volcanii and Natrialba magadii) used as biocatalyst at a microbial fuel cell (MFC) anode were evaluated. Both archaea are able to grow at high salt concentrations. By increasing the media conductivity, the internal resistance was diminished, improving the MFC's performance. Without any added redox mediator, maximum power (P max) and current at P max were 11.87/4.57/0.12 μW cm -2 and 49.67/22.03/0.59 μA cm -2 for H. volcanii, N. magadii and E. coli, respectively. When neutral red was used as the redox mediator, P max was 50.98 and 5.39 μW cm -2 for H. volcanii and N. magadii, respectively. In this paper, an archaea MFC is described and compared with other MFC systems; the high salt concentration assayed here, comparable with that used in Pt-catalyzed alkaline hydrogen fuel cells, will open new options when MFC scaling up is the objective necessary for practical applications. © 2011 Springer. Fil:Abrevaya, X.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Sacco, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Mauas, P.J.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Cortón, E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14310651_v15_n6_p633_Abrevaya http://hdl.handle.net/20.500.12110/paper_14310651_v15_n6_p633_Abrevaya
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Electricity generation Escherichia coli Haloferax volcanii MFC Nafion Natrialba magadii archaebacterium article bioenergy electrochemistry electrode growth, development and aging metabolism osmolarity Archaea Bioelectric Energy Sources Electrochemistry Electrodes Osmolar Concentration Archaea Escherichia coli Haloferax volcanii Natrialba magadii
spellingShingle	Electricity generation Escherichia coli Haloferax volcanii MFC Nafion Natrialba magadii archaebacterium article bioenergy electrochemistry electrode growth, development and aging metabolism osmolarity Archaea Bioelectric Energy Sources Electrochemistry Electrodes Osmolar Concentration Archaea Escherichia coli Haloferax volcanii Natrialba magadii Abrevaya, Ximena Celeste Sacco, Natalia Jimena Mauas, Pablo J.D. Cortón, Eduardo Archaea-based microbial fuel cell operating at high ionic strength conditions
topic_facet	Electricity generation Escherichia coli Haloferax volcanii MFC Nafion Natrialba magadii archaebacterium article bioenergy electrochemistry electrode growth, development and aging metabolism osmolarity Archaea Bioelectric Energy Sources Electrochemistry Electrodes Osmolar Concentration Archaea Escherichia coli Haloferax volcanii Natrialba magadii
description	In this work, two archaea microorganisms (Haloferax volcanii and Natrialba magadii) used as biocatalyst at a microbial fuel cell (MFC) anode were evaluated. Both archaea are able to grow at high salt concentrations. By increasing the media conductivity, the internal resistance was diminished, improving the MFC's performance. Without any added redox mediator, maximum power (P max) and current at P max were 11.87/4.57/0.12 μW cm -2 and 49.67/22.03/0.59 μA cm -2 for H. volcanii, N. magadii and E. coli, respectively. When neutral red was used as the redox mediator, P max was 50.98 and 5.39 μW cm -2 for H. volcanii and N. magadii, respectively. In this paper, an archaea MFC is described and compared with other MFC systems; the high salt concentration assayed here, comparable with that used in Pt-catalyzed alkaline hydrogen fuel cells, will open new options when MFC scaling up is the objective necessary for practical applications. © 2011 Springer.
author	Abrevaya, Ximena Celeste Sacco, Natalia Jimena Mauas, Pablo J.D. Cortón, Eduardo
author_facet	Abrevaya, Ximena Celeste Sacco, Natalia Jimena Mauas, Pablo J.D. Cortón, Eduardo
author_sort	Abrevaya, Ximena Celeste
title	Archaea-based microbial fuel cell operating at high ionic strength conditions
title_short	Archaea-based microbial fuel cell operating at high ionic strength conditions
title_full	Archaea-based microbial fuel cell operating at high ionic strength conditions
title_fullStr	Archaea-based microbial fuel cell operating at high ionic strength conditions
title_full_unstemmed	Archaea-based microbial fuel cell operating at high ionic strength conditions
title_sort	archaea-based microbial fuel cell operating at high ionic strength conditions
publishDate	2011
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14310651_v15_n6_p633_Abrevaya http://hdl.handle.net/20.500.12110/paper_14310651_v15_n6_p633_Abrevaya
work_keys_str_mv	AT abrevayaximenaceleste archaeabasedmicrobialfuelcelloperatingathighionicstrengthconditions AT sacconataliajimena archaeabasedmicrobialfuelcelloperatingathighionicstrengthconditions AT mauaspablojd archaeabasedmicrobialfuelcelloperatingathighionicstrengthconditions AT cortoneduardo archaeabasedmicrobialfuelcelloperatingathighionicstrengthconditions
_version_	1768543862895149056

Archaea-based microbial fuel cell operating at high ionic strength conditions

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