Preparation and hydrogen storage capacity of highly porous activated carbon materials derived from polythiophene

[EN] Highly porous carbons have been successfully synthesized by chemical activation of polythiophene with KOH. The activation process was performed under relatively mild activation conditions, i. e., a KOH/polymer weight ratio of 2 and reaction temperatures in the 600–850 °C range. The porous carbo...

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Detalles Bibliográficos
Autores: Sevilla Solís, Marta, Fuertes Arias, Antonio Benito, Mokaya, R.
Tipo de recurso: artículo
Fecha de publicación:2011
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/91753
Acceso en línea:http://hdl.handle.net/10261/91753
Access Level:acceso abierto
Palabra clave:Porosity
Sulfur doping
Hydrogen storage
Polythiophene
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spelling Preparation and hydrogen storage capacity of highly porous activated carbon materials derived from polythiopheneSevilla Solís, MartaFuertes Arias, Antonio BenitoMokaya, R.PorositySulfur dopingHydrogen storagePolythiophene[EN] Highly porous carbons have been successfully synthesized by chemical activation of polythiophene with KOH. The activation process was performed under relatively mild activation conditions, i. e., a KOH/polymer weight ratio of 2 and reaction temperatures in the 600–850 °C range. The porous carbons thus obtained possess very large surface areas, up to 3000 m2/g, and pore volumes of up to 1.75 cm3/g. The pore size distribution of these carbons can be tuned via modification of the activation temperature. Thus, by increasing the activation temperature from 600 to 850 °C, the nature of the carbons changes gradually from microporous to micro-mesoporous (with small mesopores of up to 2.5 nm). The polythiophene-derived activated carbons are sulfur-doped with sulfur contents in the 3–12 wt% range. The sulfur content decreases at higher activation temperature. The hydrogen storage capacity of these activated carbons, at cryogenic temperature and 20 bar, is up to 5.71 wt% with an estimated maximum hydrogen uptake of 6.64 wt%. Their ease of preparation and high uptake makes the polythiophene-derived carbons attractive hydrogen storage materials.The financial support provided by the Spanish MCyT (MAT2008-00407) is gratefully acknowledged. M. S. thanks the Spanish MCyT for the award of a Postdoctoral Mobility contractPeer reviewedElsevier201420142011info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/91753reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.ijhydene.2011.09.032info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/917532026-05-22T06:33:51Z
dc.title.none.fl_str_mv Preparation and hydrogen storage capacity of highly porous activated carbon materials derived from polythiophene
title Preparation and hydrogen storage capacity of highly porous activated carbon materials derived from polythiophene
spellingShingle Preparation and hydrogen storage capacity of highly porous activated carbon materials derived from polythiophene
Sevilla Solís, Marta
Porosity
Sulfur doping
Hydrogen storage
Polythiophene
title_short Preparation and hydrogen storage capacity of highly porous activated carbon materials derived from polythiophene
title_full Preparation and hydrogen storage capacity of highly porous activated carbon materials derived from polythiophene
title_fullStr Preparation and hydrogen storage capacity of highly porous activated carbon materials derived from polythiophene
title_full_unstemmed Preparation and hydrogen storage capacity of highly porous activated carbon materials derived from polythiophene
title_sort Preparation and hydrogen storage capacity of highly porous activated carbon materials derived from polythiophene
dc.creator.none.fl_str_mv Sevilla Solís, Marta
Fuertes Arias, Antonio Benito
Mokaya, R.
author Sevilla Solís, Marta
author_facet Sevilla Solís, Marta
Fuertes Arias, Antonio Benito
Mokaya, R.
author_role author
author2 Fuertes Arias, Antonio Benito
Mokaya, R.
author2_role author
author
dc.subject.none.fl_str_mv Porosity
Sulfur doping
Hydrogen storage
Polythiophene
topic Porosity
Sulfur doping
Hydrogen storage
Polythiophene
description [EN] Highly porous carbons have been successfully synthesized by chemical activation of polythiophene with KOH. The activation process was performed under relatively mild activation conditions, i. e., a KOH/polymer weight ratio of 2 and reaction temperatures in the 600–850 °C range. The porous carbons thus obtained possess very large surface areas, up to 3000 m2/g, and pore volumes of up to 1.75 cm3/g. The pore size distribution of these carbons can be tuned via modification of the activation temperature. Thus, by increasing the activation temperature from 600 to 850 °C, the nature of the carbons changes gradually from microporous to micro-mesoporous (with small mesopores of up to 2.5 nm). The polythiophene-derived activated carbons are sulfur-doped with sulfur contents in the 3–12 wt% range. The sulfur content decreases at higher activation temperature. The hydrogen storage capacity of these activated carbons, at cryogenic temperature and 20 bar, is up to 5.71 wt% with an estimated maximum hydrogen uptake of 6.64 wt%. Their ease of preparation and high uptake makes the polythiophene-derived carbons attractive hydrogen storage materials.
publishDate 2011
dc.date.none.fl_str_mv 2011
2014
2014
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/91753
url http://hdl.handle.net/10261/91753
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.ijhydene.2011.09.032
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 15.812429

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