A rotating ring disk electrode study of the oxygen reduction reaction in lithium containing non aqueous electrolyte

Autores
Calvo, Ernesto Julio; Mozhzhukhina, Nataliia
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We show the effect of a very small addition of LiClO4 to tetraethyl ammonium perchlorate (TEAP) in acetonitrile on the electro-reduction of molecular oxygen (ORR) at a rotating ring (Pt) glassy carbon (GC) disk electrode. While TEA+ cations stabilize the first electron reduction product in acetonitrile, superoxide O2 −, in the absence of Li+ the ORR proceeds by two one-electron sequential steps to the stabilized peroxide. Addition of 10 μM LiClO4 (b1:800 Li+ to TEA+ ratio) strongly affects the ORR mechanism: Both disk (ID) and ring (IR) currents strongly decrease, with less than 0.5% O2 − produced at the GC disk reaching the ring electrode, but still IR follows the same potential dependence as ID. On the other hand, addition of DMSO to acetonitrile 0.1 M LiClO4 stabilizes soluble O2 − detected at the ring since DMSO preferentially solvates Li+ preventing disproportionation of LiO2 into O2 and passivating Li2O2.
Fil: Calvo, Ernesto Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Fil: Mozhzhukhina, Nataliia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Materia
LITHIUM AIR BATTERIES
LITHIUM PEROXIDE
OXYGEN REDUCTION REACTION
SUPEROXIDE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/2299
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/2299
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling A rotating ring disk electrode study of the oxygen reduction reaction in lithium containing non aqueous electrolyteCalvo, Ernesto JulioMozhzhukhina, NataliiaLITHIUM AIR BATTERIESLITHIUM PEROXIDEOXYGEN REDUCTION REACTIONSUPEROXIDEhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1We show the effect of a very small addition of LiClO4 to tetraethyl ammonium perchlorate (TEAP) in acetonitrile on the electro-reduction of molecular oxygen (ORR) at a rotating ring (Pt) glassy carbon (GC) disk electrode. While TEA+ cations stabilize the first electron reduction product in acetonitrile, superoxide O2 −, in the absence of Li+ the ORR proceeds by two one-electron sequential steps to the stabilized peroxide. Addition of 10 μM LiClO4 (b1:800 Li+ to TEA+ ratio) strongly affects the ORR mechanism: Both disk (ID) and ring (IR) currents strongly decrease, with less than 0.5% O2 − produced at the GC disk reaching the ring electrode, but still IR follows the same potential dependence as ID. On the other hand, addition of DMSO to acetonitrile 0.1 M LiClO4 stabilizes soluble O2 − detected at the ring since DMSO preferentially solvates Li+ preventing disproportionation of LiO2 into O2 and passivating Li2O2.Fil: Calvo, Ernesto Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía; ArgentinaFil: Mozhzhukhina, Nataliia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía; ArgentinaElsevier Science Inc.2013-03-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/2299Calvo, Ernesto Julio; Mozhzhukhina, Nataliia; A rotating ring disk electrode study of the oxygen reduction reaction in lithium containing non aqueous electrolyte; Elsevier Science Inc.; Electrochemistry Communications; 31; 16-3-2013; 56-581388-2481enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1388248113000878info:eu-repo/semantics/altIdentifier/doi/10.1016/j.elecom.2013.03.005info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:08:17Zoai:ri.conicet.gov.ar:11336/2299instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:08:17.496CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A rotating ring disk electrode study of the oxygen reduction reaction in lithium containing non aqueous electrolyte
title A rotating ring disk electrode study of the oxygen reduction reaction in lithium containing non aqueous electrolyte
spellingShingle A rotating ring disk electrode study of the oxygen reduction reaction in lithium containing non aqueous electrolyte
Calvo, Ernesto Julio
LITHIUM AIR BATTERIES
LITHIUM PEROXIDE
OXYGEN REDUCTION REACTION
SUPEROXIDE
title_short A rotating ring disk electrode study of the oxygen reduction reaction in lithium containing non aqueous electrolyte
title_full A rotating ring disk electrode study of the oxygen reduction reaction in lithium containing non aqueous electrolyte
title_fullStr A rotating ring disk electrode study of the oxygen reduction reaction in lithium containing non aqueous electrolyte
title_full_unstemmed A rotating ring disk electrode study of the oxygen reduction reaction in lithium containing non aqueous electrolyte
title_sort A rotating ring disk electrode study of the oxygen reduction reaction in lithium containing non aqueous electrolyte
dc.creator.none.fl_str_mv Calvo, Ernesto Julio
Mozhzhukhina, Nataliia
author Calvo, Ernesto Julio
author_facet Calvo, Ernesto Julio
Mozhzhukhina, Nataliia
author_role author
author2 Mozhzhukhina, Nataliia
author2_role author
dc.subject.none.fl_str_mv LITHIUM AIR BATTERIES
LITHIUM PEROXIDE
OXYGEN REDUCTION REACTION
SUPEROXIDE
topic LITHIUM AIR BATTERIES
LITHIUM PEROXIDE
OXYGEN REDUCTION REACTION
SUPEROXIDE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We show the effect of a very small addition of LiClO4 to tetraethyl ammonium perchlorate (TEAP) in acetonitrile on the electro-reduction of molecular oxygen (ORR) at a rotating ring (Pt) glassy carbon (GC) disk electrode. While TEA+ cations stabilize the first electron reduction product in acetonitrile, superoxide O2 −, in the absence of Li+ the ORR proceeds by two one-electron sequential steps to the stabilized peroxide. Addition of 10 μM LiClO4 (b1:800 Li+ to TEA+ ratio) strongly affects the ORR mechanism: Both disk (ID) and ring (IR) currents strongly decrease, with less than 0.5% O2 − produced at the GC disk reaching the ring electrode, but still IR follows the same potential dependence as ID. On the other hand, addition of DMSO to acetonitrile 0.1 M LiClO4 stabilizes soluble O2 − detected at the ring since DMSO preferentially solvates Li+ preventing disproportionation of LiO2 into O2 and passivating Li2O2.
Fil: Calvo, Ernesto Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Fil: Mozhzhukhina, Nataliia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
description We show the effect of a very small addition of LiClO4 to tetraethyl ammonium perchlorate (TEAP) in acetonitrile on the electro-reduction of molecular oxygen (ORR) at a rotating ring (Pt) glassy carbon (GC) disk electrode. While TEA+ cations stabilize the first electron reduction product in acetonitrile, superoxide O2 −, in the absence of Li+ the ORR proceeds by two one-electron sequential steps to the stabilized peroxide. Addition of 10 μM LiClO4 (b1:800 Li+ to TEA+ ratio) strongly affects the ORR mechanism: Both disk (ID) and ring (IR) currents strongly decrease, with less than 0.5% O2 − produced at the GC disk reaching the ring electrode, but still IR follows the same potential dependence as ID. On the other hand, addition of DMSO to acetonitrile 0.1 M LiClO4 stabilizes soluble O2 − detected at the ring since DMSO preferentially solvates Li+ preventing disproportionation of LiO2 into O2 and passivating Li2O2.
publishDate 2013
dc.date.none.fl_str_mv 2013-03-16
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/2299
Calvo, Ernesto Julio; Mozhzhukhina, Nataliia; A rotating ring disk electrode study of the oxygen reduction reaction in lithium containing non aqueous electrolyte; Elsevier Science Inc.; Electrochemistry Communications; 31; 16-3-2013; 56-58
1388-2481
url http://hdl.handle.net/11336/2299
identifier_str_mv Calvo, Ernesto Julio; Mozhzhukhina, Nataliia; A rotating ring disk electrode study of the oxygen reduction reaction in lithium containing non aqueous electrolyte; Elsevier Science Inc.; Electrochemistry Communications; 31; 16-3-2013; 56-58
1388-2481
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1388248113000878
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.elecom.2013.03.005
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science Inc.
publisher.none.fl_str_mv Elsevier Science Inc.
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842270038821699584
score 13.13397

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