Insights into the structural and surface characteristics of microporous carbide derived carbons obtained through single and double halogen etching

Carbide derived carbons CDC are prepared from polymeric preceramic precursors by incorporating different amounts of a divinylbenzene and heat treated at different temperatures. The effects of a single (Cl2) and double (HF + Cl2) etching treatment have been studied. The amount of divinlylbenzene inco...

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Autores: Pérez-Román, Berta, Layek, Rama, Rodriguez, M. Ángeles, Rubio Alonso, Fausto, Rubio Alonso, Juan, Tamayo Hernando, Aitana
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2020
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/368182
Acceso en línea:http://hdl.handle.net/10261/368182
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85092195111&doi=10.1016%2fj.micromeso.2020.110675&partnerID=40&md5=4478cb40457d01b2a5bae0b2999f8d90
Access Level:acceso abierto
Palabra clave:Carbide derived carbon
Edge
Raman
Microporosity
Surface characteristics
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spelling Insights into the structural and surface characteristics of microporous carbide derived carbons obtained through single and double halogen etchingPérez-Román, BertaLayek, RamaRodriguez, M. ÁngelesRubio Alonso, FaustoRubio Alonso, JuanTamayo Hernando, AitanaCarbide derived carbonEdgeRamanMicroporositySurface characteristicsCarbide derived carbons CDC are prepared from polymeric preceramic precursors by incorporating different amounts of a divinylbenzene and heat treated at different temperatures. The effects of a single (Cl2) and double (HF + Cl2) etching treatment have been studied. The amount of divinlylbenzene incorporated into the preceramic precursor will determine the relative amount of linear to highly crosslinked silica units therefore the sensitivity to the etching process. The obtained microporous materials possess a self-similar surface and different microstructure depending on the temperature and the etching treatment which inevitably affect the electrochemical characteristics. Wet etching reduced the amount of zigzag edges in the microporous carbon thus contributing to the decrease of the areal capacitance. In the case of a single etching, the capacitance increases with the relative number of armchair to armchair + zigzag edges only when the materials were treated at high temperature. On contrary, by double etching treatment, the electrochemical characteristics are strongly related to the pore anisotropy independently on the temperature of the treatment. In this study we provide several clues for the design of highly capacitive microporous carbons from preceramic polymers with a view in the pore architecture, surface characteristics, defects, disorder and reactivity of the carbon edges. © 2020 Elsevier Inc.This research has been developed under the frame of the project MAT2016-78700-R from the Spanish Ministry of Science and Universities.Peer reviewedElsevierMinisterio de Ciencia e Innovación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/368182https://www.scopus.com/inward/record.uri?eid=2-s2.0-85092195111&doi=10.1016%2fj.micromeso.2020.110675&partnerID=40&md5=4478cb40457d01b2a5bae0b2999f8d90reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#MAT2016-78700-RMicroporous and Mesoporous Materialshttps://doi.org/10.1016/j.micromeso.2020.110675Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3681822026-05-22T06:33:51Z
dc.title.none.fl_str_mv Insights into the structural and surface characteristics of microporous carbide derived carbons obtained through single and double halogen etching
title Insights into the structural and surface characteristics of microporous carbide derived carbons obtained through single and double halogen etching
spellingShingle Insights into the structural and surface characteristics of microporous carbide derived carbons obtained through single and double halogen etching
Pérez-Román, Berta
Carbide derived carbon
Edge
Raman
Microporosity
Surface characteristics
title_short Insights into the structural and surface characteristics of microporous carbide derived carbons obtained through single and double halogen etching
title_full Insights into the structural and surface characteristics of microporous carbide derived carbons obtained through single and double halogen etching
title_fullStr Insights into the structural and surface characteristics of microporous carbide derived carbons obtained through single and double halogen etching
title_full_unstemmed Insights into the structural and surface characteristics of microporous carbide derived carbons obtained through single and double halogen etching
title_sort Insights into the structural and surface characteristics of microporous carbide derived carbons obtained through single and double halogen etching
dc.creator.none.fl_str_mv Pérez-Román, Berta
Layek, Rama
Rodriguez, M. Ángeles
Rubio Alonso, Fausto
Rubio Alonso, Juan
Tamayo Hernando, Aitana
author Pérez-Román, Berta
author_facet Pérez-Román, Berta
Layek, Rama
Rodriguez, M. Ángeles
Rubio Alonso, Fausto
Rubio Alonso, Juan
Tamayo Hernando, Aitana
author_role author
author2 Layek, Rama
Rodriguez, M. Ángeles
Rubio Alonso, Fausto
Rubio Alonso, Juan
Tamayo Hernando, Aitana
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Carbide derived carbon
Edge
Raman
Microporosity
Surface characteristics
topic Carbide derived carbon
Edge
Raman
Microporosity
Surface characteristics
description Carbide derived carbons CDC are prepared from polymeric preceramic precursors by incorporating different amounts of a divinylbenzene and heat treated at different temperatures. The effects of a single (Cl2) and double (HF + Cl2) etching treatment have been studied. The amount of divinlylbenzene incorporated into the preceramic precursor will determine the relative amount of linear to highly crosslinked silica units therefore the sensitivity to the etching process. The obtained microporous materials possess a self-similar surface and different microstructure depending on the temperature and the etching treatment which inevitably affect the electrochemical characteristics. Wet etching reduced the amount of zigzag edges in the microporous carbon thus contributing to the decrease of the areal capacitance. In the case of a single etching, the capacitance increases with the relative number of armchair to armchair + zigzag edges only when the materials were treated at high temperature. On contrary, by double etching treatment, the electrochemical characteristics are strongly related to the pore anisotropy independently on the temperature of the treatment. In this study we provide several clues for the design of highly capacitive microporous carbons from preceramic polymers with a view in the pore architecture, surface characteristics, defects, disorder and reactivity of the carbon edges. © 2020 Elsevier Inc.
publishDate 2020
dc.date.none.fl_str_mv 2020
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/10261/368182
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85092195111&doi=10.1016%2fj.micromeso.2020.110675&partnerID=40&md5=4478cb40457d01b2a5bae0b2999f8d90
url http://hdl.handle.net/10261/368182
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85092195111&doi=10.1016%2fj.micromeso.2020.110675&partnerID=40&md5=4478cb40457d01b2a5bae0b2999f8d90
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
MAT2016-78700-R
Microporous and Mesoporous Materials
https://doi.org/10.1016/j.micromeso.2020.110675
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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