Nonactivated and Activated Biochar Derived from Bananas as Alternative Cathode Catalyst in Microbial Fuel Cells

Nonactivated and activated biochars have been successfully prepared by bananas at different thermotreatment temperatures. The activated biochar generated at 900°C (Biochar-act900) exhibited improved oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) performances in alkaline media, i...

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Autores principales: Yuan, Haoran, Deng, Lifang, Qi, Yujie, Kobayashi, Noriyuki, Tang, Jiahuan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2014
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4163465/
https://www.ncbi.nlm.nih.gov/pubmed/25243229
http://dx.doi.org/10.1155/2014/832850
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author Yuan, Haoran
Deng, Lifang
Qi, Yujie
Kobayashi, Noriyuki
Tang, Jiahuan
author_facet Yuan, Haoran
Deng, Lifang
Qi, Yujie
Kobayashi, Noriyuki
Tang, Jiahuan
author_sort Yuan, Haoran
collection PubMed
description Nonactivated and activated biochars have been successfully prepared by bananas at different thermotreatment temperatures. The activated biochar generated at 900°C (Biochar-act900) exhibited improved oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) performances in alkaline media, in terms of the onset potential and generated current density. Rotating disk electron result shows that the average of 2.65 electrons per oxygen molecule was transferred during ORR of Biochar-act900. The highest power density of 528.2 mW/m(2) and the maximum stable voltage of 0.47 V were obtained by employing Biochar-act900 as cathode catalyst, which is comparable to the Pt/C cathode. Owning to these advantages, it is expected that the banana-derived biochar cathode can find application in microbial fuel cell systems.
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spelling pubmed-41634652014-09-21 Nonactivated and Activated Biochar Derived from Bananas as Alternative Cathode Catalyst in Microbial Fuel Cells Yuan, Haoran Deng, Lifang Qi, Yujie Kobayashi, Noriyuki Tang, Jiahuan ScientificWorldJournal Research Article Nonactivated and activated biochars have been successfully prepared by bananas at different thermotreatment temperatures. The activated biochar generated at 900°C (Biochar-act900) exhibited improved oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) performances in alkaline media, in terms of the onset potential and generated current density. Rotating disk electron result shows that the average of 2.65 electrons per oxygen molecule was transferred during ORR of Biochar-act900. The highest power density of 528.2 mW/m(2) and the maximum stable voltage of 0.47 V were obtained by employing Biochar-act900 as cathode catalyst, which is comparable to the Pt/C cathode. Owning to these advantages, it is expected that the banana-derived biochar cathode can find application in microbial fuel cell systems. Hindawi Publishing Corporation 2014 2014-08-26 /pmc/articles/PMC4163465/ /pubmed/25243229 http://dx.doi.org/10.1155/2014/832850 Text en Copyright © 2014 Haoran Yuan et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Yuan, Haoran
Deng, Lifang
Qi, Yujie
Kobayashi, Noriyuki
Tang, Jiahuan
Nonactivated and Activated Biochar Derived from Bananas as Alternative Cathode Catalyst in Microbial Fuel Cells
title Nonactivated and Activated Biochar Derived from Bananas as Alternative Cathode Catalyst in Microbial Fuel Cells
title_full Nonactivated and Activated Biochar Derived from Bananas as Alternative Cathode Catalyst in Microbial Fuel Cells
title_fullStr Nonactivated and Activated Biochar Derived from Bananas as Alternative Cathode Catalyst in Microbial Fuel Cells
title_full_unstemmed Nonactivated and Activated Biochar Derived from Bananas as Alternative Cathode Catalyst in Microbial Fuel Cells
title_short Nonactivated and Activated Biochar Derived from Bananas as Alternative Cathode Catalyst in Microbial Fuel Cells
title_sort nonactivated and activated biochar derived from bananas as alternative cathode catalyst in microbial fuel cells
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4163465/
https://www.ncbi.nlm.nih.gov/pubmed/25243229
http://dx.doi.org/10.1155/2014/832850
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