Synthesis of Porous and Mechanically Compliant Carbon Aerogels Using Conductive and Structural Additives

We report the synthesis of conductive and mechanically compliant monolithic carbon aerogels prepared by sol-gel polycondensation of melamine-resorcinol-formaldehyde (MRF) mixtures by incorporating diatomite and carbon black additives. The resulting aerogels composites displayed a well-developed poro...

Descripción completa

Detalles Bibliográficos
Autores: Macías, Carlos, Rasines, Gloria, Lavela, Tomás E., Zafra, María C., Lavela, Pedro, Tirado, José L., Ovín Ania, María Concepción
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/128492
Acceso en línea:http://hdl.handle.net/10261/128492
Access Level:acceso abierto
Palabra clave:Carbon aerogels
Nanoporous
Electrically conductive
Mechanical properties
id ES_cc2d963663d3af3b3f7dbc073e2f9aae
oai_identifier_str oai:digital.csic.es:10261/128492
network_acronym_str ES
network_name_str España
repository_id_str
spelling Synthesis of Porous and Mechanically Compliant Carbon Aerogels Using Conductive and Structural AdditivesMacías, CarlosRasines, GloriaLavela, Tomás E.Zafra, María C.Lavela, PedroTirado, José L.Ovín Ania, María ConcepciónCarbon aerogelsNanoporousElectrically conductiveMechanical propertiesWe report the synthesis of conductive and mechanically compliant monolithic carbon aerogels prepared by sol-gel polycondensation of melamine-resorcinol-formaldehyde (MRF) mixtures by incorporating diatomite and carbon black additives. The resulting aerogels composites displayed a well-developed porous structure, confirming that the polymerization of the precursors is not impeded in the presence of either additive. The aerogels retained the porous structure after etching off the siliceous additive, indicating adequate cross-linking of the MRF reactants. However, the presence of diatomite caused a significant fall in the pore volumes, accompanied by coarsening of the average pore size (predominance of large mesopores and macropores). The diatomite also prevented structural shrinkage and deformation of the as-prepared monoliths upon densification by carbonization, even after removal of the siliceous framework. The rigid pristine aerogels became more flexible upon incorporation of the diatomite, favoring implementation of binderless monolithic aerogel electrodes.This work was partially funded by the Spanish MINECO (CTM2014/56770-R, IPT-2011-1450-310000 ADECAR) and Junta de Andalucía (FQM288). The help of D.L. García in the preparation of the specimens is greatly appreciated. C.O.A. thanks the financial support of the European Research Council through a Consolidator Grant (ERC-CoG-648161-PHOROSOL).Peer reviewedMultidisciplinary Digital Publishing InstituteMinisterio de Economía y Competitividad (España)Consejo Superior de Investigaciones Científicas (España)Junta de AndalucíaEuropean Research CouncilConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201620162016info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/128492reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2014-56770-Rinfo:eu-repo/grantAgreement/EC/H2020/648161http://dx.doi.org/10.3390/gels2010004Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1284922026-05-22T06:33:51Z
dc.title.none.fl_str_mv Synthesis of Porous and Mechanically Compliant Carbon Aerogels Using Conductive and Structural Additives
title Synthesis of Porous and Mechanically Compliant Carbon Aerogels Using Conductive and Structural Additives
spellingShingle Synthesis of Porous and Mechanically Compliant Carbon Aerogels Using Conductive and Structural Additives
Macías, Carlos
Carbon aerogels
Nanoporous
Electrically conductive
Mechanical properties
title_short Synthesis of Porous and Mechanically Compliant Carbon Aerogels Using Conductive and Structural Additives
title_full Synthesis of Porous and Mechanically Compliant Carbon Aerogels Using Conductive and Structural Additives
title_fullStr Synthesis of Porous and Mechanically Compliant Carbon Aerogels Using Conductive and Structural Additives
title_full_unstemmed Synthesis of Porous and Mechanically Compliant Carbon Aerogels Using Conductive and Structural Additives
title_sort Synthesis of Porous and Mechanically Compliant Carbon Aerogels Using Conductive and Structural Additives
dc.creator.none.fl_str_mv Macías, Carlos
Rasines, Gloria
Lavela, Tomás E.
Zafra, María C.
Lavela, Pedro
Tirado, José L.
Ovín Ania, María Concepción
author Macías, Carlos
author_facet Macías, Carlos
Rasines, Gloria
Lavela, Tomás E.
Zafra, María C.
Lavela, Pedro
Tirado, José L.
Ovín Ania, María Concepción
author_role author
author2 Rasines, Gloria
Lavela, Tomás E.
Zafra, María C.
Lavela, Pedro
Tirado, José L.
Ovín Ania, María Concepción
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Consejo Superior de Investigaciones Científicas (España)
Junta de Andalucía
European Research Council
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Carbon aerogels
Nanoporous
Electrically conductive
Mechanical properties
topic Carbon aerogels
Nanoporous
Electrically conductive
Mechanical properties
description We report the synthesis of conductive and mechanically compliant monolithic carbon aerogels prepared by sol-gel polycondensation of melamine-resorcinol-formaldehyde (MRF) mixtures by incorporating diatomite and carbon black additives. The resulting aerogels composites displayed a well-developed porous structure, confirming that the polymerization of the precursors is not impeded in the presence of either additive. The aerogels retained the porous structure after etching off the siliceous additive, indicating adequate cross-linking of the MRF reactants. However, the presence of diatomite caused a significant fall in the pore volumes, accompanied by coarsening of the average pore size (predominance of large mesopores and macropores). The diatomite also prevented structural shrinkage and deformation of the as-prepared monoliths upon densification by carbonization, even after removal of the siliceous framework. The rigid pristine aerogels became more flexible upon incorporation of the diatomite, favoring implementation of binderless monolithic aerogel electrodes.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016
2016
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/128492
url http://hdl.handle.net/10261/128492
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2014-56770-R
info:eu-repo/grantAgreement/EC/H2020/648161
http://dx.doi.org/10.3390/gels2010004
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
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
_version_ 1869419675266318337
score 15,81155

Similares en LA Referencia