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Effect of the ceramic membrane properties on the microbial fuel cell power output and catholyte generation

Ceramic membranes for MFCs offer a low cost alternative to the expensive ion exchange membranes, whilst promoting catholyte accumulation. However, their physicochemical properties need to be optimised, in order to increase the power output and the catholyte quality from MFCs. Two compositions of fin...

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Autores principales: Merino-Jimenez, Irene, Gonzalez-Juarez, Fernando, Greenman, John, Ieropoulos, Ioannis
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier Sequoia 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6588323/
https://www.ncbi.nlm.nih.gov/pubmed/31379405
http://dx.doi.org/10.1016/j.jpowsour.2019.04.043
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author Merino-Jimenez, Irene
Gonzalez-Juarez, Fernando
Greenman, John
Ieropoulos, Ioannis
author_facet Merino-Jimenez, Irene
Gonzalez-Juarez, Fernando
Greenman, John
Ieropoulos, Ioannis
author_sort Merino-Jimenez, Irene
collection PubMed
description Ceramic membranes for MFCs offer a low cost alternative to the expensive ion exchange membranes, whilst promoting catholyte accumulation. However, their physicochemical properties need to be optimised, in order to increase the power output and the catholyte quality from MFCs. Two compositions of fine fire clay (FFC) cured under three firing cycles were manufactured, analysed and tested as ion-exchange and structural material for MFCs. The samples were characterised by scanning electron microscopy (SEM) and electrochemical impedance spectroscopy (EIS). The power and catholyte generated from the ceramic MFCs with different FFC types was also evaluated. The results show a direct correlation between the ohmic resistance, the MFC power generation and the water absorption of the ceramics, giving a maximum power of 1 mW from the MFC with the most absorptive FFC (16.37% water absorbance). A slightly more alkaline catholyte was synthesised from the MFCs with higher water absorption FFC.
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spelling pubmed-65883232019-07-31 Effect of the ceramic membrane properties on the microbial fuel cell power output and catholyte generation Merino-Jimenez, Irene Gonzalez-Juarez, Fernando Greenman, John Ieropoulos, Ioannis J Power Sources Article Ceramic membranes for MFCs offer a low cost alternative to the expensive ion exchange membranes, whilst promoting catholyte accumulation. However, their physicochemical properties need to be optimised, in order to increase the power output and the catholyte quality from MFCs. Two compositions of fine fire clay (FFC) cured under three firing cycles were manufactured, analysed and tested as ion-exchange and structural material for MFCs. The samples were characterised by scanning electron microscopy (SEM) and electrochemical impedance spectroscopy (EIS). The power and catholyte generated from the ceramic MFCs with different FFC types was also evaluated. The results show a direct correlation between the ohmic resistance, the MFC power generation and the water absorption of the ceramics, giving a maximum power of 1 mW from the MFC with the most absorptive FFC (16.37% water absorbance). A slightly more alkaline catholyte was synthesised from the MFCs with higher water absorption FFC. Elsevier Sequoia 2019-07-31 /pmc/articles/PMC6588323/ /pubmed/31379405 http://dx.doi.org/10.1016/j.jpowsour.2019.04.043 Text en © 2019 The Authors http://creativecommons.org/licenses/by/4.0/ This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Merino-Jimenez, Irene
Gonzalez-Juarez, Fernando
Greenman, John
Ieropoulos, Ioannis
Effect of the ceramic membrane properties on the microbial fuel cell power output and catholyte generation
title Effect of the ceramic membrane properties on the microbial fuel cell power output and catholyte generation
title_full Effect of the ceramic membrane properties on the microbial fuel cell power output and catholyte generation
title_fullStr Effect of the ceramic membrane properties on the microbial fuel cell power output and catholyte generation
title_full_unstemmed Effect of the ceramic membrane properties on the microbial fuel cell power output and catholyte generation
title_short Effect of the ceramic membrane properties on the microbial fuel cell power output and catholyte generation
title_sort effect of the ceramic membrane properties on the microbial fuel cell power output and catholyte generation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6588323/
https://www.ncbi.nlm.nih.gov/pubmed/31379405
http://dx.doi.org/10.1016/j.jpowsour.2019.04.043
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