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Air Breathing Cathodes for Microbial Fuel Cell using Mn-, Fe-, Co- and Ni-containing Platinum Group Metal-free Catalysts
The oxygen reduction reaction (ORR) is one of the major factors that is limiting the overall performance output of microbial fuel cells (MFC). In this study, Platinum Group Metal-free (PGM-free) ORR catalysts based on Fe, Co, Ni, Mn and the same precursor (Aminoantipyrine, AAPyr) were synthesized us...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Pergamon Press
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5384433/ https://www.ncbi.nlm.nih.gov/pubmed/28413228 http://dx.doi.org/10.1016/j.electacta.2017.02.033 |
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author | Kodali, Mounika Santoro, Carlo Serov, Alexey Kabir, Sadia Artyushkova, Kateryna Matanovic, Ivana Atanassov, Plamen |
author_facet | Kodali, Mounika Santoro, Carlo Serov, Alexey Kabir, Sadia Artyushkova, Kateryna Matanovic, Ivana Atanassov, Plamen |
author_sort | Kodali, Mounika |
collection | PubMed |
description | The oxygen reduction reaction (ORR) is one of the major factors that is limiting the overall performance output of microbial fuel cells (MFC). In this study, Platinum Group Metal-free (PGM-free) ORR catalysts based on Fe, Co, Ni, Mn and the same precursor (Aminoantipyrine, AAPyr) were synthesized using identical sacrificial support method (SSM). The catalysts were investigated for their electrochemical performance, and then integrated into an air-breathing cathode to be tested in “clean” environment and in a working microbial fuel cell (MFC). Their performances were also compared to activated carbon (AC) based cathode under similar conditions. Results showed that the addition of Mn, Fe, Co and Ni to AAPyr increased the performances compared to AC. Fe-AAPyr showed the highest open circuit potential (OCP) that was 0.307 ± 0.001 V (vs. Ag/AgCl) and the highest electrocatalytic activity at pH 7.5. On the contrary, AC had an OCP of 0.203 ± 0.002 V (vs. Ag/AgCl) and had the lowest electrochemical activity. In MFC, Fe-AAPyr also had the highest output of 251 ± 2.3 μWcm(−2), followed by Co-AAPyr with 196 ± 1.5 μWcm(−2), Ni-AAPyr with 171 ± 3.6 μWcm(−2), Mn-AAPyr with 160 ± 2.8 μWcm(−2) and AC 129 ± 4.2 μWcm(−2). The best performing catalyst (Fe-AAPyr) was then tested in MFC with increasing solution conductivity from 12.4 mScm(−1) to 63.1 mScm(−1). A maximum power density of 482 ± 5 μWcm(−2) was obtained with increasing solution conductivity, which is one of the highest values reported in the field. |
format | Online Article Text |
id | pubmed-5384433 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Pergamon Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-53844332017-04-12 Air Breathing Cathodes for Microbial Fuel Cell using Mn-, Fe-, Co- and Ni-containing Platinum Group Metal-free Catalysts Kodali, Mounika Santoro, Carlo Serov, Alexey Kabir, Sadia Artyushkova, Kateryna Matanovic, Ivana Atanassov, Plamen Electrochim Acta Article The oxygen reduction reaction (ORR) is one of the major factors that is limiting the overall performance output of microbial fuel cells (MFC). In this study, Platinum Group Metal-free (PGM-free) ORR catalysts based on Fe, Co, Ni, Mn and the same precursor (Aminoantipyrine, AAPyr) were synthesized using identical sacrificial support method (SSM). The catalysts were investigated for their electrochemical performance, and then integrated into an air-breathing cathode to be tested in “clean” environment and in a working microbial fuel cell (MFC). Their performances were also compared to activated carbon (AC) based cathode under similar conditions. Results showed that the addition of Mn, Fe, Co and Ni to AAPyr increased the performances compared to AC. Fe-AAPyr showed the highest open circuit potential (OCP) that was 0.307 ± 0.001 V (vs. Ag/AgCl) and the highest electrocatalytic activity at pH 7.5. On the contrary, AC had an OCP of 0.203 ± 0.002 V (vs. Ag/AgCl) and had the lowest electrochemical activity. In MFC, Fe-AAPyr also had the highest output of 251 ± 2.3 μWcm(−2), followed by Co-AAPyr with 196 ± 1.5 μWcm(−2), Ni-AAPyr with 171 ± 3.6 μWcm(−2), Mn-AAPyr with 160 ± 2.8 μWcm(−2) and AC 129 ± 4.2 μWcm(−2). The best performing catalyst (Fe-AAPyr) was then tested in MFC with increasing solution conductivity from 12.4 mScm(−1) to 63.1 mScm(−1). A maximum power density of 482 ± 5 μWcm(−2) was obtained with increasing solution conductivity, which is one of the highest values reported in the field. Pergamon Press 2017-03-20 /pmc/articles/PMC5384433/ /pubmed/28413228 http://dx.doi.org/10.1016/j.electacta.2017.02.033 Text en © 2017 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 Kodali, Mounika Santoro, Carlo Serov, Alexey Kabir, Sadia Artyushkova, Kateryna Matanovic, Ivana Atanassov, Plamen Air Breathing Cathodes for Microbial Fuel Cell using Mn-, Fe-, Co- and Ni-containing Platinum Group Metal-free Catalysts |
title | Air Breathing Cathodes for Microbial Fuel Cell using Mn-, Fe-, Co- and Ni-containing Platinum Group Metal-free Catalysts |
title_full | Air Breathing Cathodes for Microbial Fuel Cell using Mn-, Fe-, Co- and Ni-containing Platinum Group Metal-free Catalysts |
title_fullStr | Air Breathing Cathodes for Microbial Fuel Cell using Mn-, Fe-, Co- and Ni-containing Platinum Group Metal-free Catalysts |
title_full_unstemmed | Air Breathing Cathodes for Microbial Fuel Cell using Mn-, Fe-, Co- and Ni-containing Platinum Group Metal-free Catalysts |
title_short | Air Breathing Cathodes for Microbial Fuel Cell using Mn-, Fe-, Co- and Ni-containing Platinum Group Metal-free Catalysts |
title_sort | air breathing cathodes for microbial fuel cell using mn-, fe-, co- and ni-containing platinum group metal-free catalysts |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5384433/ https://www.ncbi.nlm.nih.gov/pubmed/28413228 http://dx.doi.org/10.1016/j.electacta.2017.02.033 |
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