Nitrogen-doped reduced graphene oxide as electrode material for high rate supercapacitors

Nitrogen-doped reduced graphene oxides (N-rGOs) have been synthesized at various temperatures by a facile hydrothermal route involving the doping of an aqueous graphene oxide dispersion with amitrole. The N-rGOs had a nitrogen content ranging from 10.9 to 13.4 at%, which is among the highest reporte...

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Autores: Śliwak, Agata, Grzyb, Bartosz, Díez Nogués, Noel, Gryglewicz, Grażyna
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2017
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/345825
Acceso en línea:http://hdl.handle.net/10261/345825
https://api.elsevier.com/content/abstract/scopus_id/85006986875
Access Level:acceso abierto
Palabra clave:Supercapacitor
Amitrole
Hydrothermal treatment
Nitrogen-doped reduced graphene oxide
Pseudocapacitance
http://metadata.un.org/sdg/7
http://metadata.un.org/sdg/9
http://metadata.un.org/sdg/8
Ensure access to affordable, reliable, sustainable and modern energy for all
Promote sustained, inclusive and sustainable economic growth, full and productive employment and decent work for all
Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation
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spelling Nitrogen-doped reduced graphene oxide as electrode material for high rate supercapacitorsŚliwak, AgataGrzyb, BartoszDíez Nogués, NoelGryglewicz, GrażynaSupercapacitorAmitroleHydrothermal treatmentNitrogen-doped reduced graphene oxidePseudocapacitancehttp://metadata.un.org/sdg/7http://metadata.un.org/sdg/9http://metadata.un.org/sdg/8Ensure access to affordable, reliable, sustainable and modern energy for allPromote sustained, inclusive and sustainable economic growth, full and productive employment and decent work for allBuild resilient infrastructure, promote inclusive and sustainable industrialization and foster innovationNitrogen-doped reduced graphene oxides (N-rGOs) have been synthesized at various temperatures by a facile hydrothermal route involving the doping of an aqueous graphene oxide dispersion with amitrole. The N-rGOs had a nitrogen content ranging from 10.9 to 13.4 at%, which is among the highest reported for this type of material. The predominant nitrogen species were pyridinic followed by amide/amine, pyrrolic, and quaternary nitrogen. Cyclic voltammetry and impedance spectroscopy measurements performed on the N-doped and nitrogen-free samples revealed that nitrogen fixation provided the material with pseudocapacitive behaviour and improved ion diffusion and charge propagation. A high specific capacitance of 244 F g −1 was obtained at a high scan rate of 100 mV s −1 for the N-rGO with the highest nitrogen content. An outstanding rate capability for the N-rGO, with increasing scan rates, of 98% was obtained, while only 70% was obtained for the non-doped rGO. 92% of the initial capacitance was maintained over 5000 charge/discharge cycles due to the high stability of the electrochemically active nitrogen moieties. Hydrothermal synthesis using amitrole as a nitrogen dopant represents a simple route for the synthesis of graphene with very high nitrogen content and exceptional behaviour for use as electrode material in high-power supercapacitors.The research leading to these results has received funding from the European Uniońs Research Fund for Coal and Steel (RFCS) research program under grant agreement RFCR-CT-2013-00006.Peer reviewedElsevierResearch Fund for Coal and SteelDíez Nogués, Noel [0000-0002-6072-8947]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242017info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/345825https://api.elsevier.com/content/abstract/scopus_id/85006986875reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésApplied Surface Sciencehttps://doi.org/10.1016/j.apsusc.2016.12.060Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3458252026-05-22T06:33:51Z
dc.title.none.fl_str_mv Nitrogen-doped reduced graphene oxide as electrode material for high rate supercapacitors
title Nitrogen-doped reduced graphene oxide as electrode material for high rate supercapacitors
spellingShingle Nitrogen-doped reduced graphene oxide as electrode material for high rate supercapacitors
Śliwak, Agata
Supercapacitor
Amitrole
Hydrothermal treatment
Nitrogen-doped reduced graphene oxide
Pseudocapacitance
http://metadata.un.org/sdg/7
http://metadata.un.org/sdg/9
http://metadata.un.org/sdg/8
Ensure access to affordable, reliable, sustainable and modern energy for all
Promote sustained, inclusive and sustainable economic growth, full and productive employment and decent work for all
Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation
title_short Nitrogen-doped reduced graphene oxide as electrode material for high rate supercapacitors
title_full Nitrogen-doped reduced graphene oxide as electrode material for high rate supercapacitors
title_fullStr Nitrogen-doped reduced graphene oxide as electrode material for high rate supercapacitors
title_full_unstemmed Nitrogen-doped reduced graphene oxide as electrode material for high rate supercapacitors
title_sort Nitrogen-doped reduced graphene oxide as electrode material for high rate supercapacitors
dc.creator.none.fl_str_mv Śliwak, Agata
Grzyb, Bartosz
Díez Nogués, Noel
Gryglewicz, Grażyna
author Śliwak, Agata
author_facet Śliwak, Agata
Grzyb, Bartosz
Díez Nogués, Noel
Gryglewicz, Grażyna
author_role author
author2 Grzyb, Bartosz
Díez Nogués, Noel
Gryglewicz, Grażyna
author2_role author
author
author
dc.contributor.none.fl_str_mv Research Fund for Coal and Steel
Díez Nogués, Noel [0000-0002-6072-8947]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Supercapacitor
Amitrole
Hydrothermal treatment
Nitrogen-doped reduced graphene oxide
Pseudocapacitance
http://metadata.un.org/sdg/7
http://metadata.un.org/sdg/9
http://metadata.un.org/sdg/8
Ensure access to affordable, reliable, sustainable and modern energy for all
Promote sustained, inclusive and sustainable economic growth, full and productive employment and decent work for all
Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation
topic Supercapacitor
Amitrole
Hydrothermal treatment
Nitrogen-doped reduced graphene oxide
Pseudocapacitance
http://metadata.un.org/sdg/7
http://metadata.un.org/sdg/9
http://metadata.un.org/sdg/8
Ensure access to affordable, reliable, sustainable and modern energy for all
Promote sustained, inclusive and sustainable economic growth, full and productive employment and decent work for all
Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation
description Nitrogen-doped reduced graphene oxides (N-rGOs) have been synthesized at various temperatures by a facile hydrothermal route involving the doping of an aqueous graphene oxide dispersion with amitrole. The N-rGOs had a nitrogen content ranging from 10.9 to 13.4 at%, which is among the highest reported for this type of material. The predominant nitrogen species were pyridinic followed by amide/amine, pyrrolic, and quaternary nitrogen. Cyclic voltammetry and impedance spectroscopy measurements performed on the N-doped and nitrogen-free samples revealed that nitrogen fixation provided the material with pseudocapacitive behaviour and improved ion diffusion and charge propagation. A high specific capacitance of 244 F g −1 was obtained at a high scan rate of 100 mV s −1 for the N-rGO with the highest nitrogen content. An outstanding rate capability for the N-rGO, with increasing scan rates, of 98% was obtained, while only 70% was obtained for the non-doped rGO. 92% of the initial capacitance was maintained over 5000 charge/discharge cycles due to the high stability of the electrochemically active nitrogen moieties. Hydrothermal synthesis using amitrole as a nitrogen dopant represents a simple route for the synthesis of graphene with very high nitrogen content and exceptional behaviour for use as electrode material in high-power supercapacitors.
publishDate 2017
dc.date.none.fl_str_mv 2017
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/345825
https://api.elsevier.com/content/abstract/scopus_id/85006986875
url http://hdl.handle.net/10261/345825
https://api.elsevier.com/content/abstract/scopus_id/85006986875
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Applied Surface Science
https://doi.org/10.1016/j.apsusc.2016.12.060
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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