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Biohybrid Cathode in Single Chamber Microbial Fuel Cell
The aim of this work is to investigate the properties of biofilms, spontaneously grown on cathode electrodes of single-chamber microbial fuel cells, when used as catalysts for oxygen reduction reaction (ORR). To this purpose, a comparison between two sets of different carbon-based cathode electrodes...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6359297/ https://www.ncbi.nlm.nih.gov/pubmed/30597855 http://dx.doi.org/10.3390/nano9010036 |
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author | Massaglia, Giulia Fiorello, Isabella Sacco, Adriano Margaria, Valentina Pirri, Candido Fabrizio Quaglio, Marzia |
author_facet | Massaglia, Giulia Fiorello, Isabella Sacco, Adriano Margaria, Valentina Pirri, Candido Fabrizio Quaglio, Marzia |
author_sort | Massaglia, Giulia |
collection | PubMed |
description | The aim of this work is to investigate the properties of biofilms, spontaneously grown on cathode electrodes of single-chamber microbial fuel cells, when used as catalysts for oxygen reduction reaction (ORR). To this purpose, a comparison between two sets of different carbon-based cathode electrodes is carried out. The first one (Pt-based biocathode) is based on the proliferation of the biofilm onto a Pt/C layer, leading thus to the creation of a biohybrid catalyst. The second set of electrodes (Pt-free biocathode) is based on a bare carbon-based material, on which biofilm grows and acts as the sole catalyst for ORR. Linear sweep voltammetry (LSV) characterization confirmed better performance when the biofilm is formed on both Pt-based and Pt-free cathodes, with respect to that obtained by biofilm-free cathodes. To analyze the properties of spontaneously grown cathodic biofilms on carbon-based electrodes, electrochemical impedance spectroscopy is employed. This study demonstrates that the highest power production is reached when aerobic biofilm acts as a catalyst for ORR in synergy with Pt in the biohybrid cathode. |
format | Online Article Text |
id | pubmed-6359297 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-63592972019-02-06 Biohybrid Cathode in Single Chamber Microbial Fuel Cell Massaglia, Giulia Fiorello, Isabella Sacco, Adriano Margaria, Valentina Pirri, Candido Fabrizio Quaglio, Marzia Nanomaterials (Basel) Article The aim of this work is to investigate the properties of biofilms, spontaneously grown on cathode electrodes of single-chamber microbial fuel cells, when used as catalysts for oxygen reduction reaction (ORR). To this purpose, a comparison between two sets of different carbon-based cathode electrodes is carried out. The first one (Pt-based biocathode) is based on the proliferation of the biofilm onto a Pt/C layer, leading thus to the creation of a biohybrid catalyst. The second set of electrodes (Pt-free biocathode) is based on a bare carbon-based material, on which biofilm grows and acts as the sole catalyst for ORR. Linear sweep voltammetry (LSV) characterization confirmed better performance when the biofilm is formed on both Pt-based and Pt-free cathodes, with respect to that obtained by biofilm-free cathodes. To analyze the properties of spontaneously grown cathodic biofilms on carbon-based electrodes, electrochemical impedance spectroscopy is employed. This study demonstrates that the highest power production is reached when aerobic biofilm acts as a catalyst for ORR in synergy with Pt in the biohybrid cathode. MDPI 2018-12-28 /pmc/articles/PMC6359297/ /pubmed/30597855 http://dx.doi.org/10.3390/nano9010036 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Massaglia, Giulia Fiorello, Isabella Sacco, Adriano Margaria, Valentina Pirri, Candido Fabrizio Quaglio, Marzia Biohybrid Cathode in Single Chamber Microbial Fuel Cell |
title | Biohybrid Cathode in Single Chamber Microbial Fuel Cell |
title_full | Biohybrid Cathode in Single Chamber Microbial Fuel Cell |
title_fullStr | Biohybrid Cathode in Single Chamber Microbial Fuel Cell |
title_full_unstemmed | Biohybrid Cathode in Single Chamber Microbial Fuel Cell |
title_short | Biohybrid Cathode in Single Chamber Microbial Fuel Cell |
title_sort | biohybrid cathode in single chamber microbial fuel cell |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6359297/ https://www.ncbi.nlm.nih.gov/pubmed/30597855 http://dx.doi.org/10.3390/nano9010036 |
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