ZnSe/N-doped carbon nanoreactor with multiple adsorption sites for stable lithium–sulfur batteries

To commercially realize the enormous potential of lithium–sulfur batteries (LSBs) several challenges remain to be overcome. At the cathode, the lithium polysulfide (LiPS) shuttle effect must be inhibited and the redox reaction kinetics need to be substantially promoted. In this direction, this work...

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Detalles Bibliográficos
Autores: Arbiol Cobos, Jordi, Llorca Piqué, Jordi|||0000-0002-7447-9582, Cabot, Andreu
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/344008
Acceso en línea:https://hdl.handle.net/2117/344008
https://dx.doi.org/10.1021/acsnano.0c06112
Access Level:acceso abierto
Palabra clave:Zinc selenide
Nanoreactor
Lithium polysulfide
Shuttle effect
Lithium-sulfur batteries
Bateries
Àrees temàtiques de la UPC::Enginyeria química
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spelling ZnSe/N-doped carbon nanoreactor with multiple adsorption sites for stable lithium–sulfur batteriesArbiol Cobos, JordiLlorca Piqué, Jordi|||0000-0002-7447-9582Cabot, AndreuZinc selenideNanoreactorLithium polysulfideShuttle effectLithium-sulfur batteriesBateriesÀrees temàtiques de la UPC::Enginyeria químicaTo commercially realize the enormous potential of lithium–sulfur batteries (LSBs) several challenges remain to be overcome. At the cathode, the lithium polysulfide (LiPS) shuttle effect must be inhibited and the redox reaction kinetics need to be substantially promoted. In this direction, this work proposes a cathode material based on a transition-metal selenide (TMSe) as both adsorber and catalyst and a hollow nanoreactor architecture: ZnSe/N-doped hollow carbon (ZnSe/NHC). It is here demonstrated both experimentally and by means of density functional theory that this composite provides three key benefits to the LSBs cathode: (i) A highly effective trapping of LiPS due to the combination of sulfiphilic sites of ZnSe, lithiophilic sites of NHC, and the confinement effect of the cage-based structure; (ii) a redox kinetic improvement in part associated with the multiple adsorption sites that facilitate the Li+ diffusion; and (iii) an easier accommodation of the volume expansion preventing the cathode damage due to the hollow design. As a result, LSB cathodes based on S@ZnSe/NHC are characterized by high initial capacities, superior rate capability, and an excellent stability. Overall, this work not only demonstrates the large potential of TMSe as cathode materials in LSBs but also probes the nanoreactor design to be a highly suitable architecture to enhance cycle stability.Peer Reviewed20202020-10-2120212021-04-20journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/344008https://dx.doi.org/10.1021/acsnano.0c06112reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3440082026-05-27T15:37:01Z
dc.title.none.fl_str_mv ZnSe/N-doped carbon nanoreactor with multiple adsorption sites for stable lithium–sulfur batteries
title ZnSe/N-doped carbon nanoreactor with multiple adsorption sites for stable lithium–sulfur batteries
spellingShingle ZnSe/N-doped carbon nanoreactor with multiple adsorption sites for stable lithium–sulfur batteries
Arbiol Cobos, Jordi
Zinc selenide
Nanoreactor
Lithium polysulfide
Shuttle effect
Lithium-sulfur batteries
Bateries
Àrees temàtiques de la UPC::Enginyeria química
title_short ZnSe/N-doped carbon nanoreactor with multiple adsorption sites for stable lithium–sulfur batteries
title_full ZnSe/N-doped carbon nanoreactor with multiple adsorption sites for stable lithium–sulfur batteries
title_fullStr ZnSe/N-doped carbon nanoreactor with multiple adsorption sites for stable lithium–sulfur batteries
title_full_unstemmed ZnSe/N-doped carbon nanoreactor with multiple adsorption sites for stable lithium–sulfur batteries
title_sort ZnSe/N-doped carbon nanoreactor with multiple adsorption sites for stable lithium–sulfur batteries
dc.creator.none.fl_str_mv Arbiol Cobos, Jordi
Llorca Piqué, Jordi|||0000-0002-7447-9582
Cabot, Andreu
author Arbiol Cobos, Jordi
author_facet Arbiol Cobos, Jordi
Llorca Piqué, Jordi|||0000-0002-7447-9582
Cabot, Andreu
author_role author
author2 Llorca Piqué, Jordi|||0000-0002-7447-9582
Cabot, Andreu
author2_role author
author
dc.subject.none.fl_str_mv Zinc selenide
Nanoreactor
Lithium polysulfide
Shuttle effect
Lithium-sulfur batteries
Bateries
Àrees temàtiques de la UPC::Enginyeria química
topic Zinc selenide
Nanoreactor
Lithium polysulfide
Shuttle effect
Lithium-sulfur batteries
Bateries
Àrees temàtiques de la UPC::Enginyeria química
description To commercially realize the enormous potential of lithium–sulfur batteries (LSBs) several challenges remain to be overcome. At the cathode, the lithium polysulfide (LiPS) shuttle effect must be inhibited and the redox reaction kinetics need to be substantially promoted. In this direction, this work proposes a cathode material based on a transition-metal selenide (TMSe) as both adsorber and catalyst and a hollow nanoreactor architecture: ZnSe/N-doped hollow carbon (ZnSe/NHC). It is here demonstrated both experimentally and by means of density functional theory that this composite provides three key benefits to the LSBs cathode: (i) A highly effective trapping of LiPS due to the combination of sulfiphilic sites of ZnSe, lithiophilic sites of NHC, and the confinement effect of the cage-based structure; (ii) a redox kinetic improvement in part associated with the multiple adsorption sites that facilitate the Li+ diffusion; and (iii) an easier accommodation of the volume expansion preventing the cathode damage due to the hollow design. As a result, LSB cathodes based on S@ZnSe/NHC are characterized by high initial capacities, superior rate capability, and an excellent stability. Overall, this work not only demonstrates the large potential of TMSe as cathode materials in LSBs but also probes the nanoreactor design to be a highly suitable architecture to enhance cycle stability.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-10-21
2021
2021-04-20
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/344008
https://dx.doi.org/10.1021/acsnano.0c06112
url https://hdl.handle.net/2117/344008
https://dx.doi.org/10.1021/acsnano.0c06112
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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