Electrochemical Exfoliation of Graphite in Aqueous Sodium Halide Electrolytes toward Low Oxygen Content Graphene for Energy and Environmental Applications
Graphene and graphene-based materials have shown great promise in many technological applications, but their large-scale production and processing by simple and cost-effective means still constitute significant issues in the path of their widespread implementation. Here, we investigate a straightfor...
| Autores: | , , , , , , , , , , |
|---|---|
| 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:10261/339131 |
| Acceso en línea: | http://hdl.handle.net/10261/339131 https://api.elsevier.com/content/abstract/scopus_id/85024932538 |
| Access Level: | acceso abierto |
| Palabra clave: | electrochemical exfoliation sodium halides Environmental applications graphene supercapacitors http://metadata.un.org/sdg/7 http://metadata.un.org/sdg/9 Ensure access to affordable, reliable, sustainable and modern energy for all Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation |
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| dc.title.none.fl_str_mv |
Electrochemical Exfoliation of Graphite in Aqueous Sodium Halide Electrolytes toward Low Oxygen Content Graphene for Energy and Environmental Applications |
| title |
Electrochemical Exfoliation of Graphite in Aqueous Sodium Halide Electrolytes toward Low Oxygen Content Graphene for Energy and Environmental Applications |
| spellingShingle |
Electrochemical Exfoliation of Graphite in Aqueous Sodium Halide Electrolytes toward Low Oxygen Content Graphene for Energy and Environmental Applications Munuera Fernández, José María electrochemical exfoliation sodium halides Environmental applications graphene supercapacitors http://metadata.un.org/sdg/7 http://metadata.un.org/sdg/9 Ensure access to affordable, reliable, sustainable and modern energy for all Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation |
| title_short |
Electrochemical Exfoliation of Graphite in Aqueous Sodium Halide Electrolytes toward Low Oxygen Content Graphene for Energy and Environmental Applications |
| title_full |
Electrochemical Exfoliation of Graphite in Aqueous Sodium Halide Electrolytes toward Low Oxygen Content Graphene for Energy and Environmental Applications |
| title_fullStr |
Electrochemical Exfoliation of Graphite in Aqueous Sodium Halide Electrolytes toward Low Oxygen Content Graphene for Energy and Environmental Applications |
| title_full_unstemmed |
Electrochemical Exfoliation of Graphite in Aqueous Sodium Halide Electrolytes toward Low Oxygen Content Graphene for Energy and Environmental Applications |
| title_sort |
Electrochemical Exfoliation of Graphite in Aqueous Sodium Halide Electrolytes toward Low Oxygen Content Graphene for Energy and Environmental Applications |
| dc.creator.none.fl_str_mv |
Munuera Fernández, José María Paredes Nachón, Juan Ignacio Enterría González, Marina Pagán, A Villar Rodil, Silvia Pereira, M F R Martins, J I Figueiredo, J L Cenis, J L Martínez Alonso, Amelia Díez Tascón, Juan Manuel |
| author |
Munuera Fernández, José María |
| author_facet |
Munuera Fernández, José María Paredes Nachón, Juan Ignacio Enterría González, Marina Pagán, A Villar Rodil, Silvia Pereira, M F R Martins, J I Figueiredo, J L Cenis, J L Martínez Alonso, Amelia Díez Tascón, Juan Manuel |
| author_role |
author |
| author2 |
Paredes Nachón, Juan Ignacio Enterría González, Marina Pagán, A Villar Rodil, Silvia Pereira, M F R Martins, J I Figueiredo, J L Cenis, J L Martínez Alonso, Amelia Díez Tascón, Juan Manuel |
| author2_role |
author author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
Ministerio de Economía y Competitividad (España) Principado de Asturias Fundação para a Ciência e a Tecnologia (Portugal) Munuera Fernández, José María [0000-0002-8176-4795] Villar Rodil, Silvia [0000-0002-5832-9971] Paredes Nachón, Juan Ignacio [0000-0002-0044-9153] Martínez Alonso, Amelia [0000-0002-7183-0859] Díez Tascón, Juan Manuel [0000-0001-9219-7266] Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] |
| dc.subject.none.fl_str_mv |
electrochemical exfoliation sodium halides Environmental applications graphene supercapacitors http://metadata.un.org/sdg/7 http://metadata.un.org/sdg/9 Ensure access to affordable, reliable, sustainable and modern energy for all Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation |
| topic |
electrochemical exfoliation sodium halides Environmental applications graphene supercapacitors http://metadata.un.org/sdg/7 http://metadata.un.org/sdg/9 Ensure access to affordable, reliable, sustainable and modern energy for all Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation |
| description |
Graphene and graphene-based materials have shown great promise in many technological applications, but their large-scale production and processing by simple and cost-effective means still constitute significant issues in the path of their widespread implementation. Here, we investigate a straightforward method for the preparation of a ready-to-use and low oxygen content graphene material that is based on electrochemical (anodic) delamination of graphite in aqueous medium with sodium halides as the electrolyte. Contrary to previous conflicting reports on the ability of halide anions to act as efficient exfoliating electrolytes in electrochemical graphene exfoliation, we show that proper choice of both graphite electrode (e.g., graphite foil) and sodium halide concentration readily leads to the generation of large quantities of single-/few-layer graphene nanosheets possessing a degree of oxidation (O/C ratio down to ∼0.06) lower than that typical of anodically exfoliated graphenes obtained with commonly used electrolytes. The halide anions are thought to play a role in mitigating the oxidation of the graphene lattice during exfoliation, which is also discussed and rationalized. The as-exfoliated graphene materials exhibited a three-dimensional morphology that was suitable for their practical use without the need to resort to any kind of postproduction processing. When tested as dye adsorbents, they outperformed many previously reported graphene-based materials (e.g., they adsorbed ∼920 mg g-1 for methyl orange) and were useful sorbents for oils and nonpolar organic solvents. Supercapacitor cells assembled directly from the as-exfoliated products delivered energy and power density values (up to 15.3 Wh kg-1 and 3220 W kg-1, respectively) competitive with those of many other graphene-based devices but with the additional advantage of extreme simplicity of preparation. |
| publishDate |
2017 |
| dc.date.none.fl_str_mv |
2017 2023 2023 |
| 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 |
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article |
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acceptedVersion |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10261/339131 https://api.elsevier.com/content/abstract/scopus_id/85024932538 |
| url |
http://hdl.handle.net/10261/339131 https://api.elsevier.com/content/abstract/scopus_id/85024932538 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
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#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO//MAT2015-69844-R ACS applied materials & interfaces https://doi.org/10.1021/acsami.7b04802 Sí |
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info:eu-repo/semantics/openAccess |
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openAccess |
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American Chemical Society |
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American Chemical Society |
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reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC instname:Consejo Superior de Investigaciones Científicas (CSIC) |
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Consejo Superior de Investigaciones Científicas (CSIC) |
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DIGITAL.CSIC. Repositorio Institucional del CSIC |
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DIGITAL.CSIC. Repositorio Institucional del CSIC |
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1869411569646960640 |
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Electrochemical Exfoliation of Graphite in Aqueous Sodium Halide Electrolytes toward Low Oxygen Content Graphene for Energy and Environmental ApplicationsMunuera Fernández, José MaríaParedes Nachón, Juan IgnacioEnterría González, MarinaPagán, AVillar Rodil, SilviaPereira, M F RMartins, J IFigueiredo, J LCenis, J LMartínez Alonso, AmeliaDíez Tascón, Juan Manuelelectrochemical exfoliationsodium halidesEnvironmental applicationsgraphenesupercapacitorshttp://metadata.un.org/sdg/7http://metadata.un.org/sdg/9Ensure access to affordable, reliable, sustainable and modern energy for allBuild resilient infrastructure, promote inclusive and sustainable industrialization and foster innovationGraphene and graphene-based materials have shown great promise in many technological applications, but their large-scale production and processing by simple and cost-effective means still constitute significant issues in the path of their widespread implementation. Here, we investigate a straightforward method for the preparation of a ready-to-use and low oxygen content graphene material that is based on electrochemical (anodic) delamination of graphite in aqueous medium with sodium halides as the electrolyte. Contrary to previous conflicting reports on the ability of halide anions to act as efficient exfoliating electrolytes in electrochemical graphene exfoliation, we show that proper choice of both graphite electrode (e.g., graphite foil) and sodium halide concentration readily leads to the generation of large quantities of single-/few-layer graphene nanosheets possessing a degree of oxidation (O/C ratio down to ∼0.06) lower than that typical of anodically exfoliated graphenes obtained with commonly used electrolytes. The halide anions are thought to play a role in mitigating the oxidation of the graphene lattice during exfoliation, which is also discussed and rationalized. The as-exfoliated graphene materials exhibited a three-dimensional morphology that was suitable for their practical use without the need to resort to any kind of postproduction processing. When tested as dye adsorbents, they outperformed many previously reported graphene-based materials (e.g., they adsorbed ∼920 mg g-1 for methyl orange) and were useful sorbents for oils and nonpolar organic solvents. Supercapacitor cells assembled directly from the as-exfoliated products delivered energy and power density values (up to 15.3 Wh kg-1 and 3220 W kg-1, respectively) competitive with those of many other graphene-based devices but with the additional advantage of extreme simplicity of preparation.Financial support from both the Spanish Ministerio de Economía y Competitividad (MINECO) and the European Regional Development Fund (ERDF) through grant MAT2015-69844-R is gratefully acknowledged. We also acknowledge partial funding by both Plan de Ciencia, Tecnología e Innovación 2013-2017 del Principado de Asturias and the ERDF through Project GRUPIN14-056. This work was also partially funded by project “AIProcMat@N2020 - Advanced Industrial Processes and Materials for a Sustainable Northern Region of Portugal 2020” (NORTE-01-0145-FEDER-000006), supported by Norte Portugal Regional Operational Programme (NORTE 2020), under the Portugal 2020 Partnership Agreement, through the European Regional Development Fund (ERDF) and of Project POCI-01-0145-FEDER-006984 – Associate Laboratory LSRE-LCM funded by ERDF through COMPETE2020 - Programa Operacional Competitividade e Internacionalização (POCI) – and by national funds through FCT - Fundação para a Ciência e a Tecnologia. A.P. thanks her research contract partially supported (80%) by the ERDF/FEDER Operative Programme of the Region of Murcia (Project No. 14-20-01). J.M.M. is grateful to the Spanish Ministerio de Educación, Cultura y Deporte (MECD) for his pre-doctoral contract (FPU14/00792).Peer reviewedAmerican Chemical SocietyMinisterio de Economía y Competitividad (España)Principado de AsturiasFundação para a Ciência e a Tecnologia (Portugal)Munuera Fernández, José María [0000-0002-8176-4795]Villar Rodil, Silvia [0000-0002-5832-9971]Paredes Nachón, Juan Ignacio [0000-0002-0044-9153]Martínez Alonso, Amelia [0000-0002-7183-0859]Díez Tascón, Juan Manuel [0000-0001-9219-7266]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202320232017info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/339131https://api.elsevier.com/content/abstract/scopus_id/85024932538reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO//MAT2015-69844-RACS applied materials & interfaceshttps://doi.org/10.1021/acsami.7b04802Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3391312026-05-22T06:33:51Z |
| score |
15.812429 |