Synthesis and characterization of organic agar-based membranes for microbial fuel cells
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https://doi.org/10.1016/j.jpowsour.2019.226772 |
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Títol
Synthesis and characterization of organic agar-based membranes for microbial fuel cellsAutoria
Data de publicació
2019-09-30Editor
ElsevierCita bibliogràfica
HERNÁNDEZ-FLORES, Giovanni, et al. Synthesis and characterization of organic agar-based membranes for microbial fuel cells. Journal of Power Sources, 2019, 435: 226772.Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
https://www.sciencedirect.com/science/article/pii/S0378775319307438Versió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
The goal of this work was the synthesis and characterization of agar membranes for microbial fuel cells applications. Three sets of membranes were synthesized. For a first set of membranes (2, 4, 6, and 8 wt% agar ... [+]
The goal of this work was the synthesis and characterization of agar membranes for microbial fuel cells applications. Three sets of membranes were synthesized. For a first set of membranes (2, 4, 6, and 8 wt% agar concentration), both proton conductivity (σ) and O2 permeability (OP) increased as a function of agar concentration, up to 4 wt% agar. Beyond this concentration, the σ levelled-off at 2.43 mS cm−1 and OP increased. A second one set was obtaining by mixing 2, 4, 6, and 8 wt% concentrations of agar with KCl 10 wt%. Both σ and OP increased as a function of increased agar concentration; nevertheless, the presence of KCl slightly affected in a negative way the OP. For the last set, agar concentration was fixed at 2 wt%, while KCl concentration was increased to 2, 4, 6, 8, and 10 wt%. The σ did not significantly increase with salt concentration and the worst values of OP were observed. It was thus confirmed that agar concentration plays a significant role in the increase of σ, but KCl does not improve membrane performance. Moreover, the agar membranes cost is two orders of magnitude lower than Nafion® 117. Therefore, the best membranes were those produced solely with agar. [-]
Proyecto de investigación
Ministerio de Economía y Competitividad (MINECO), Spain (project ENE/2015-69203-R)Drets d'accés
© 2019 Elsevier B.V. All rights reserved.
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