Tailored porous carbon xerogels for Fe-N-C catalysts in proton exchange membrane fuel cells

8 figures, 8 tables.-- Supplementary information available.

Detalles Bibliográficos
Autores: Álvarez Manuel, Laura, Alegre Gresa, Cinthia, Sebastián del Río, David, Napal, Pedro F., Lázaro Elorri, María Jesús
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/341598
Acceso en línea:http://hdl.handle.net/10261/341598
Access Level:acceso abierto
Palabra clave:Carbon xerogels
Fe-N-C catalysts
Oxygen reduction reaction
Fuel cells
http://metadata.un.org/sdg/7
Ensure access to affordable, reliable, sustainable and modern energy for all
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spelling Tailored porous carbon xerogels for Fe-N-C catalysts in proton exchange membrane fuel cellsÁlvarez Manuel, LauraAlegre Gresa, CinthiaSebastián del Río, DavidNapal, Pedro F.Lázaro Elorri, María JesúsCarbon xerogelsFe-N-C catalystsOxygen reduction reactionFuel cellshttp://metadata.un.org/sdg/7Ensure access to affordable, reliable, sustainable and modern energy for all8 figures, 8 tables.-- Supplementary information available.Atomically dispersed Fe-N-C catalysts for the oxygen reduction reaction (ORR) have been synthesized with a template-free method using carbon xerogels (CXG) as a porous matrix. The porosity of the CXGs is easily tunable through slight variations in the synthesis procedure. In this work, CXGs are prepared by formaldehyde and resorcinol polymerization, modifying the pH during the process. Materials with a broad range of porous structures are obtained: from non-porous to micro-/meso-/macroporous materials. The porous properties of CXG have a direct effect on Fe-N-CXG activity against ORR in an acidic medium (0.5 M H2SO4). Macropores and wide mesopores are vital to favor the mass transport of reagents to the active sites available in the micropores, while narrower mesopores can generate additional tortuosity. The role of microporosity is investigated by comparing two Fe-N-C catalysts using the same CXG as the matrix but following a different Fe and N doping procedure. In one case, the carbonization of CXG occurs rapidly and simultaneously with Fe and N doping, whereas in the other case it proceeds slowly, under controlled conditions and before the doping process, resulting in the formation of more micropores and active sites and achieving higher activity in a three-electrode cell and a better durability during fuel cell measurements. This work proves the feasibility of the template-free method using CXG as a carbon matrix for Fe-N-C catalysts, with the novelty of the controlled porous properties of the carbon material and its effect on the catalytic activity of the Fe-N-C catalyst. Moreover, the results obtained highlight the importance of the carbon matrix’s porous structure in influencing the activity of Fe-N-C catalysts against ORR.Authors acknowledge Grant PID2020-115848RB-C21 funded by MCIN/AEI/10.13039/501100011033 and Gobierno de Aragón (T06_23R).Peer reviewedMultidisciplinary Digital Publishing InstituteMinisterio de Ciencia, Innovación y Universidades (España)Agencia Estatal de Investigación (España)Gobierno de AragónÁlvarez Manuel, Laura [0000-0002-9647-4643]Alegre Gresa, Cinthia [0000-0003-1221-6311]Sebastián del Río, David [0000-0002-7722-2993]Lázaro Elorri, María Jesús [0000-0002-4769-2564]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2024202420232024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/341598reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-115848RB-C21The underlying dataset has been published as supplementary material of the article in the publisher platform at https://www.mdpi.com/article/10.3390/nano14010014/s1https://doi.org/10.3390/nano14010014https://www.mdpi.com/article/10.3390/nano14010014/s1Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3415982026-05-22T06:33:51Z
dc.title.none.fl_str_mv Tailored porous carbon xerogels for Fe-N-C catalysts in proton exchange membrane fuel cells
title Tailored porous carbon xerogels for Fe-N-C catalysts in proton exchange membrane fuel cells
spellingShingle Tailored porous carbon xerogels for Fe-N-C catalysts in proton exchange membrane fuel cells
Álvarez Manuel, Laura
Carbon xerogels
Fe-N-C catalysts
Oxygen reduction reaction
Fuel cells
http://metadata.un.org/sdg/7
Ensure access to affordable, reliable, sustainable and modern energy for all
title_short Tailored porous carbon xerogels for Fe-N-C catalysts in proton exchange membrane fuel cells
title_full Tailored porous carbon xerogels for Fe-N-C catalysts in proton exchange membrane fuel cells
title_fullStr Tailored porous carbon xerogels for Fe-N-C catalysts in proton exchange membrane fuel cells
title_full_unstemmed Tailored porous carbon xerogels for Fe-N-C catalysts in proton exchange membrane fuel cells
title_sort Tailored porous carbon xerogels for Fe-N-C catalysts in proton exchange membrane fuel cells
dc.creator.none.fl_str_mv Álvarez Manuel, Laura
Alegre Gresa, Cinthia
Sebastián del Río, David
Napal, Pedro F.
Lázaro Elorri, María Jesús
author Álvarez Manuel, Laura
author_facet Álvarez Manuel, Laura
Alegre Gresa, Cinthia
Sebastián del Río, David
Napal, Pedro F.
Lázaro Elorri, María Jesús
author_role author
author2 Alegre Gresa, Cinthia
Sebastián del Río, David
Napal, Pedro F.
Lázaro Elorri, María Jesús
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia, Innovación y Universidades (España)
Agencia Estatal de Investigación (España)
Gobierno de Aragón
Álvarez Manuel, Laura [0000-0002-9647-4643]
Alegre Gresa, Cinthia [0000-0003-1221-6311]
Sebastián del Río, David [0000-0002-7722-2993]
Lázaro Elorri, María Jesús [0000-0002-4769-2564]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Carbon xerogels
Fe-N-C catalysts
Oxygen reduction reaction
Fuel cells
http://metadata.un.org/sdg/7
Ensure access to affordable, reliable, sustainable and modern energy for all
topic Carbon xerogels
Fe-N-C catalysts
Oxygen reduction reaction
Fuel cells
http://metadata.un.org/sdg/7
Ensure access to affordable, reliable, sustainable and modern energy for all
description 8 figures, 8 tables.-- Supplementary information available.
publishDate 2023
dc.date.none.fl_str_mv 2023
2024
2024
2024
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/10261/341598
url http://hdl.handle.net/10261/341598
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-115848RB-C21
The underlying dataset has been published as supplementary material of the article in the publisher platform at https://www.mdpi.com/article/10.3390/nano14010014/s1
https://doi.org/10.3390/nano14010014
https://www.mdpi.com/article/10.3390/nano14010014/s1
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
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
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