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Enhancing Electrocatalytic Oxygen Reduction on Nitrogen-Doped Graphene by Active Sites Implantation

The shortage of nitrogen active sites and relatively low nitrogen content result in unsatisfying eletrocatalytic activity and durability of nitrogen-doped graphene (NG) for oxygen reduction reaction (ORR). Here we report a novel approach to substantially enhance electrocatalytic oxygen reduction on...

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Detalles Bibliográficos
Autores principales: Feng, Leiyu, Yang, Lanqin, Huang, Zujing, Luo, Jingyang, Li, Mu, Wang, Dongbo, Chen, Yinguang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3837309/
https://www.ncbi.nlm.nih.gov/pubmed/24264379
http://dx.doi.org/10.1038/srep03306
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author Feng, Leiyu
Yang, Lanqin
Huang, Zujing
Luo, Jingyang
Li, Mu
Wang, Dongbo
Chen, Yinguang
author_facet Feng, Leiyu
Yang, Lanqin
Huang, Zujing
Luo, Jingyang
Li, Mu
Wang, Dongbo
Chen, Yinguang
author_sort Feng, Leiyu
collection PubMed
description The shortage of nitrogen active sites and relatively low nitrogen content result in unsatisfying eletrocatalytic activity and durability of nitrogen-doped graphene (NG) for oxygen reduction reaction (ORR). Here we report a novel approach to substantially enhance electrocatalytic oxygen reduction on NG electrode by the implantation of nitrogen active sites with mesoporous graphitic carbon nitride (mpg-C(3)N(4)). Electrochemical characterization revealed that in neutral electrolyte the resulting NG (I-NG) exhibited super electrocatalytic activity (completely 100% of four-electron ORR pathway) and durability (nearly no activity change after 100000 potential cyclings). When I-NG was used as cathode catalyst in microbial fuel cells (MFCs), power density and its drop percentage were also much better than the NG and Pt/C ones, demonstrating that the current I-NG was a perfect alternative to Pt/C and offered a new potential for constructing high-performance and less expensive cathode which is crucial for large-scale application of MFC technology.
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spelling pubmed-38373092013-11-22 Enhancing Electrocatalytic Oxygen Reduction on Nitrogen-Doped Graphene by Active Sites Implantation Feng, Leiyu Yang, Lanqin Huang, Zujing Luo, Jingyang Li, Mu Wang, Dongbo Chen, Yinguang Sci Rep Article The shortage of nitrogen active sites and relatively low nitrogen content result in unsatisfying eletrocatalytic activity and durability of nitrogen-doped graphene (NG) for oxygen reduction reaction (ORR). Here we report a novel approach to substantially enhance electrocatalytic oxygen reduction on NG electrode by the implantation of nitrogen active sites with mesoporous graphitic carbon nitride (mpg-C(3)N(4)). Electrochemical characterization revealed that in neutral electrolyte the resulting NG (I-NG) exhibited super electrocatalytic activity (completely 100% of four-electron ORR pathway) and durability (nearly no activity change after 100000 potential cyclings). When I-NG was used as cathode catalyst in microbial fuel cells (MFCs), power density and its drop percentage were also much better than the NG and Pt/C ones, demonstrating that the current I-NG was a perfect alternative to Pt/C and offered a new potential for constructing high-performance and less expensive cathode which is crucial for large-scale application of MFC technology. Nature Publishing Group 2013-11-22 /pmc/articles/PMC3837309/ /pubmed/24264379 http://dx.doi.org/10.1038/srep03306 Text en Copyright © 2013, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/
spellingShingle Article
Feng, Leiyu
Yang, Lanqin
Huang, Zujing
Luo, Jingyang
Li, Mu
Wang, Dongbo
Chen, Yinguang
Enhancing Electrocatalytic Oxygen Reduction on Nitrogen-Doped Graphene by Active Sites Implantation
title Enhancing Electrocatalytic Oxygen Reduction on Nitrogen-Doped Graphene by Active Sites Implantation
title_full Enhancing Electrocatalytic Oxygen Reduction on Nitrogen-Doped Graphene by Active Sites Implantation
title_fullStr Enhancing Electrocatalytic Oxygen Reduction on Nitrogen-Doped Graphene by Active Sites Implantation
title_full_unstemmed Enhancing Electrocatalytic Oxygen Reduction on Nitrogen-Doped Graphene by Active Sites Implantation
title_short Enhancing Electrocatalytic Oxygen Reduction on Nitrogen-Doped Graphene by Active Sites Implantation
title_sort enhancing electrocatalytic oxygen reduction on nitrogen-doped graphene by active sites implantation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3837309/
https://www.ncbi.nlm.nih.gov/pubmed/24264379
http://dx.doi.org/10.1038/srep03306
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