N-Doped Polypyrrole-Based Porous Carbons for CO2 Capture

Highly porous N-doped carbons have been successfully prepared by using KOH as activating agent and polypyrrole (PPy) as carbon precursor. These materials were investigated as sorbents for CO2 capture. The activation process was carried out under severe (KOH/PPy = 4) or mild (KOH/PPy = 2) activation...

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Detalles Bibliográficos
Autores: Sevilla Solís, Marta, Valle Vigón, Patricia, Fuertes Arias, Antonio Benito
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
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:10261/134461
Acceso en línea:http://hdl.handle.net/10261/134461
Access Level:acceso abierto
Palabra clave:Carbon dioxide capture
Carbon
Porosity
Nitrogen
Polypyrrole
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spelling N-Doped Polypyrrole-Based Porous Carbons for CO2 CaptureSevilla Solís, MartaValle Vigón, PatriciaFuertes Arias, Antonio BenitoCarbon dioxide captureCarbonPorosityNitrogenPolypyrroleHighly porous N-doped carbons have been successfully prepared by using KOH as activating agent and polypyrrole (PPy) as carbon precursor. These materials were investigated as sorbents for CO2 capture. The activation process was carried out under severe (KOH/PPy = 4) or mild (KOH/PPy = 2) activation conditions at different temperatures in the 600–800 °C range. Mildly activated carbons have two important characteristics: i) they contain a large number of nitrogen functional groups (up to 10.1 wt% N) identified as pyridonic-N with a small proportion of pyridinic-N groups, and ii) they exhibit, in relation to the carbons prepared with KOH/PPy = 4, narrower micropore sizes. The combination of both of these properties explains the large CO2 adsorption capacities of mildly activated carbon. In particular, a very high CO2 adsorption uptake of 6.2 mmol·g−1 (0 °C) was achieved for porous carbons prepared with KOH/PPy = 2 and 600 °C (1700 m2·g−1, pore size ≈ 1 nm and 10.1 wt% N). Furthermore, we observed that these porous carbons exhibit high CO2 adsorption rates, a good selectivity for CO2-N2 separation and it can be easily regenerated.Peer reviewedWiley-VCHConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201620162011info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/134461reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1002/adfm.201100291Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1344612026-05-22T06:33:51Z
dc.title.none.fl_str_mv N-Doped Polypyrrole-Based Porous Carbons for CO2 Capture
title N-Doped Polypyrrole-Based Porous Carbons for CO2 Capture
spellingShingle N-Doped Polypyrrole-Based Porous Carbons for CO2 Capture
Sevilla Solís, Marta
Carbon dioxide capture
Carbon
Porosity
Nitrogen
Polypyrrole
title_short N-Doped Polypyrrole-Based Porous Carbons for CO2 Capture
title_full N-Doped Polypyrrole-Based Porous Carbons for CO2 Capture
title_fullStr N-Doped Polypyrrole-Based Porous Carbons for CO2 Capture
title_full_unstemmed N-Doped Polypyrrole-Based Porous Carbons for CO2 Capture
title_sort N-Doped Polypyrrole-Based Porous Carbons for CO2 Capture
dc.creator.none.fl_str_mv Sevilla Solís, Marta
Valle Vigón, Patricia
Fuertes Arias, Antonio Benito
author Sevilla Solís, Marta
author_facet Sevilla Solís, Marta
Valle Vigón, Patricia
Fuertes Arias, Antonio Benito
author_role author
author2 Valle Vigón, Patricia
Fuertes Arias, Antonio Benito
author2_role author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Carbon dioxide capture
Carbon
Porosity
Nitrogen
Polypyrrole
topic Carbon dioxide capture
Carbon
Porosity
Nitrogen
Polypyrrole
description Highly porous N-doped carbons have been successfully prepared by using KOH as activating agent and polypyrrole (PPy) as carbon precursor. These materials were investigated as sorbents for CO2 capture. The activation process was carried out under severe (KOH/PPy = 4) or mild (KOH/PPy = 2) activation conditions at different temperatures in the 600–800 °C range. Mildly activated carbons have two important characteristics: i) they contain a large number of nitrogen functional groups (up to 10.1 wt% N) identified as pyridonic-N with a small proportion of pyridinic-N groups, and ii) they exhibit, in relation to the carbons prepared with KOH/PPy = 4, narrower micropore sizes. The combination of both of these properties explains the large CO2 adsorption capacities of mildly activated carbon. In particular, a very high CO2 adsorption uptake of 6.2 mmol·g−1 (0 °C) was achieved for porous carbons prepared with KOH/PPy = 2 and 600 °C (1700 m2·g−1, pore size ≈ 1 nm and 10.1 wt% N). Furthermore, we observed that these porous carbons exhibit high CO2 adsorption rates, a good selectivity for CO2-N2 separation and it can be easily regenerated.
publishDate 2011
dc.date.none.fl_str_mv 2011
2016
2016
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/10261/134461
url http://hdl.handle.net/10261/134461
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1002/adfm.201100291
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Wiley-VCH
publisher.none.fl_str_mv Wiley-VCH
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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