INVESTIGADORES
MAUAS Pablo Jacobo David
artículos
Título:
Archaea-based Microbial Fuel Cell Operating at High Ionic Strength Conditions
Autor/es:
ABREVAYA, X. C.; SACCO, N.; MAUAS, P.J.D.; CORTÓN, E.
Revista:
EXTREMOPHILES
Editorial:
SPRINGER TOKYO
Referencias:
Lugar: Tokyo; Año: 2011 vol. 15 p. 633 - 642
ISSN:
1431-0651
Resumen:
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.