Fabrication and characterization of carbon-based nanostructured electrodes for Microbial Fuel Cells (MFCs)

Màster en Nanociència i Nanotecnologia, Facultat de Física, Universitat de Barcelona, Curs: 2018-2019. Tutors: Roger Amade, Enric Bertrán Serra

Bibliographic Details
Author: Fernández-Martín, Miguel
Format: master thesis
Publication Date:2019
Country:España
Institution:Universidad de Barcelona
Repository:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/142788
Online Access:https://hdl.handle.net/2445/142788
Access Level:Open access
Keyword:Nanoenergia
Cel·la de combustible biològic
Treballs de fi de màster
Nanoenergy
Microbial fuel cell
Master's theses
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spelling Fabrication and characterization of carbon-based nanostructured electrodes for Microbial Fuel Cells (MFCs)Fernández-Martín, MiguelNanoenergiaCel·la de combustible biològicTreballs de fi de màsterNanoenergyMicrobial fuel cellMaster's thesesMàster en Nanociència i Nanotecnologia, Facultat de Física, Universitat de Barcelona, Curs: 2018-2019. Tutors: Roger Amade, Enric Bertrán SerraMicrobial Fuel Cells (MFCs) are bioelectrochemical systems that can produce bioelectricity from organic matter. Wastewater from urban, domestic or industrial origin can be used as a fuel to produce electricity. In addition, the amount of pollutants and contaminants decreases during the production of bioelectricity. Thus, such bioelectrochemical systems produce renewable energy and, simultaneously, can be used as a novel technology for wastewater treatment. However, the efficiencies obtained are still too low and the output voltage of the MFCs need to be increased. Furthermore, the overall cost of the cell must be reduced in order to promote this technology into the market. Here, we have studied the growth of graphene nanowalls (GNWs) on stainless-steel substrate 304 (SS), which can be used as electrodes in air-cathode MFCs. Growth parameters have been optimized to obtain dense carbon nanostructures on both SS foil and mesh. MFCs with different electrodes have been prepared to study the effect of different parameters and to determine whether the presence of carbon nanostructures results in an increase of the electrochemical efficiency. An oxygen plasma treatment has been performed to study its effect on the properties of the electrodes. Finally, MnO2 has been electrochemically deposited to determine its catalytic effect in the oxygen reduction reaction (ORR) that takes place on the cathode. Results show an increase in the output voltage and power density when GNWs electrodes are compared to MnO2 bare electrodes, with a maximum power density of 9 mW/m2. Moreover, the influence of the oxygen plasma post-treatment, performed on the nanostructures, over microbial communities developed as biofilm in the anode is demonstrated. Overall, this study shows the potential of GNWs to increase the yield of MFCsAmade Rovira, RogerBertrán Serra, Enric2019info:eu-repo/semantics/masterThesisapplication/pdfhttps://hdl.handle.net/2445/142788Màster Oficial - Nanociència i Nanotecnologiareponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaIngléscc-by-nc-nd (c) Fernández-Martín, 2019http://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1427882026-05-27T06:46:51Z
dc.title.none.fl_str_mv Fabrication and characterization of carbon-based nanostructured electrodes for Microbial Fuel Cells (MFCs)
title Fabrication and characterization of carbon-based nanostructured electrodes for Microbial Fuel Cells (MFCs)
spellingShingle Fabrication and characterization of carbon-based nanostructured electrodes for Microbial Fuel Cells (MFCs)
Fernández-Martín, Miguel
Nanoenergia
Cel·la de combustible biològic
Treballs de fi de màster
Nanoenergy
Microbial fuel cell
Master's theses
title_short Fabrication and characterization of carbon-based nanostructured electrodes for Microbial Fuel Cells (MFCs)
title_full Fabrication and characterization of carbon-based nanostructured electrodes for Microbial Fuel Cells (MFCs)
title_fullStr Fabrication and characterization of carbon-based nanostructured electrodes for Microbial Fuel Cells (MFCs)
title_full_unstemmed Fabrication and characterization of carbon-based nanostructured electrodes for Microbial Fuel Cells (MFCs)
title_sort Fabrication and characterization of carbon-based nanostructured electrodes for Microbial Fuel Cells (MFCs)
dc.creator.none.fl_str_mv Fernández-Martín, Miguel
author Fernández-Martín, Miguel
author_facet Fernández-Martín, Miguel
author_role author
dc.contributor.none.fl_str_mv Amade Rovira, Roger
Bertrán Serra, Enric
dc.subject.none.fl_str_mv Nanoenergia
Cel·la de combustible biològic
Treballs de fi de màster
Nanoenergy
Microbial fuel cell
Master's theses
topic Nanoenergia
Cel·la de combustible biològic
Treballs de fi de màster
Nanoenergy
Microbial fuel cell
Master's theses
description Màster en Nanociència i Nanotecnologia, Facultat de Física, Universitat de Barcelona, Curs: 2018-2019. Tutors: Roger Amade, Enric Bertrán Serra
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/142788
url https://hdl.handle.net/2445/142788
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv cc-by-nc-nd (c) Fernández-Martín, 2019
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-nc-nd (c) Fernández-Martín, 2019
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Màster Oficial - Nanociència i Nanotecnologia
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869411614518673408
score 15,301603

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