Electrochemical oxidation of dibenzothiophene compounds on BDD electrode in acetonitrile-water medium

The electrochemical oxidation of dibenzothiophene and two derivatives, namely 4-methyldibenzothiophene and 4,6-dimethyldibenzothiophene, was investigated either separately or as a mixture, on a BDD anode in a miscible acetonitrile (87.5% v/v)-water (12.5% v/v, 0.01 M NaNO3) solution. Linear sweep vo...

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Detalles Bibliográficos
Autores: Ornelas Dávila, O., Lacalle Bergeron, L., Ruiz Gutiérrez, P., Elizalde González, María P., Dávila-Jiménez, Martín M., Sirés Sadornil, Ignacio, Brillas, Enric, Roig Navarro, A.F., Beltrán Arandes, J., Sancho Llopis, Juan V.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2019
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/147660
Acceso en línea:https://hdl.handle.net/2445/147660
Access Level:acceso abierto
Palabra clave:Dessulfuració
Oxidació electroquímica
Desulfurization
Electrolytic oxidation
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spelling Electrochemical oxidation of dibenzothiophene compounds on BDD electrode in acetonitrile-water mediumOrnelas Dávila, O.Lacalle Bergeron, L.Ruiz Gutiérrez, P.Elizalde González, María P.Dávila-Jiménez, Martín M.Sirés Sadornil, IgnacioBrillas, EnricRoig Navarro, A.F.Beltrán Arandes, J.Sancho Llopis, Juan V.DessulfuracióOxidació electroquímicaDesulfurizationElectrolytic oxidationThe electrochemical oxidation of dibenzothiophene and two derivatives, namely 4-methyldibenzothiophene and 4,6-dimethyldibenzothiophene, was investigated either separately or as a mixture, on a BDD anode in a miscible acetonitrile (87.5% v/v)-water (12.5% v/v, 0.01 M NaNO3) solution. Linear sweep voltammetry, cyclic voltammetry, chronoamperometry and bulk electrolysis under potentiostatic conditions suggested the probable occurrence of two pathways: direct electrochemical oxidation and indirect reaction with hydroxyl radicals and other reactive oxygen species formed at the BDD anode surface during water discharge. The products extracted upon electrolysis at 1.5 and 2.0 V vs. SCE were analyzed by Fourier-transform infrared spectroscopy, gas chromatography-mass spectrometry and ultra-high performance liquid chromatography coupled to electrospray ionization and quadrupole time-of-flight mass spectrometry (UHPLC-ESI-Q-TOF-MS). The main molecules identified were the corresponding sulfoxides or sulfones, depending on the applied anodic potential. Possible oxidation routes for the dibenzothiophene compounds are proposed.Elsevier B.V.2020202120192020info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2445/147660Articles publicats en revistes (Ciència dels Materials i Química Física)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésVersió postprint del document publicat a: https://doi.org/10.1016/j.jelechem.2019.05.054Journal of Electroanalytical Chemistry, 2019, vol. 847, num. 113172https://doi.org/10.1016/j.jelechem.2019.05.054cc-by-nc-nd (c) Elsevier B.V., 2019http://creativecommons.org/licenses/by-nc-nd/3.0/esinfo:eu-repo/semantics/openAccessoai:recercat.cat:2445/1476602026-05-29T05:05:01Z
dc.title.none.fl_str_mv Electrochemical oxidation of dibenzothiophene compounds on BDD electrode in acetonitrile-water medium
title Electrochemical oxidation of dibenzothiophene compounds on BDD electrode in acetonitrile-water medium
spellingShingle Electrochemical oxidation of dibenzothiophene compounds on BDD electrode in acetonitrile-water medium
Ornelas Dávila, O.
Dessulfuració
Oxidació electroquímica
Desulfurization
Electrolytic oxidation
title_short Electrochemical oxidation of dibenzothiophene compounds on BDD electrode in acetonitrile-water medium
title_full Electrochemical oxidation of dibenzothiophene compounds on BDD electrode in acetonitrile-water medium
title_fullStr Electrochemical oxidation of dibenzothiophene compounds on BDD electrode in acetonitrile-water medium
title_full_unstemmed Electrochemical oxidation of dibenzothiophene compounds on BDD electrode in acetonitrile-water medium
title_sort Electrochemical oxidation of dibenzothiophene compounds on BDD electrode in acetonitrile-water medium
dc.creator.none.fl_str_mv Ornelas Dávila, O.
Lacalle Bergeron, L.
Ruiz Gutiérrez, P.
Elizalde González, María P.
Dávila-Jiménez, Martín M.
Sirés Sadornil, Ignacio
Brillas, Enric
Roig Navarro, A.F.
Beltrán Arandes, J.
Sancho Llopis, Juan V.
author Ornelas Dávila, O.
author_facet Ornelas Dávila, O.
Lacalle Bergeron, L.
Ruiz Gutiérrez, P.
Elizalde González, María P.
Dávila-Jiménez, Martín M.
Sirés Sadornil, Ignacio
Brillas, Enric
Roig Navarro, A.F.
Beltrán Arandes, J.
Sancho Llopis, Juan V.
author_role author
author2 Lacalle Bergeron, L.
Ruiz Gutiérrez, P.
Elizalde González, María P.
Dávila-Jiménez, Martín M.
Sirés Sadornil, Ignacio
Brillas, Enric
Roig Navarro, A.F.
Beltrán Arandes, J.
Sancho Llopis, Juan V.
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Dessulfuració
Oxidació electroquímica
Desulfurization
Electrolytic oxidation
topic Dessulfuració
Oxidació electroquímica
Desulfurization
Electrolytic oxidation
description The electrochemical oxidation of dibenzothiophene and two derivatives, namely 4-methyldibenzothiophene and 4,6-dimethyldibenzothiophene, was investigated either separately or as a mixture, on a BDD anode in a miscible acetonitrile (87.5% v/v)-water (12.5% v/v, 0.01 M NaNO3) solution. Linear sweep voltammetry, cyclic voltammetry, chronoamperometry and bulk electrolysis under potentiostatic conditions suggested the probable occurrence of two pathways: direct electrochemical oxidation and indirect reaction with hydroxyl radicals and other reactive oxygen species formed at the BDD anode surface during water discharge. The products extracted upon electrolysis at 1.5 and 2.0 V vs. SCE were analyzed by Fourier-transform infrared spectroscopy, gas chromatography-mass spectrometry and ultra-high performance liquid chromatography coupled to electrospray ionization and quadrupole time-of-flight mass spectrometry (UHPLC-ESI-Q-TOF-MS). The main molecules identified were the corresponding sulfoxides or sulfones, depending on the applied anodic potential. Possible oxidation routes for the dibenzothiophene compounds are proposed.
publishDate 2019
dc.date.none.fl_str_mv 2019
2020
2020
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/147660
url https://hdl.handle.net/2445/147660
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: https://doi.org/10.1016/j.jelechem.2019.05.054
Journal of Electroanalytical Chemistry, 2019, vol. 847, num. 113172
https://doi.org/10.1016/j.jelechem.2019.05.054
dc.rights.none.fl_str_mv cc-by-nc-nd (c) Elsevier B.V., 2019
http://creativecommons.org/licenses/by-nc-nd/3.0/es
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-nc-nd (c) Elsevier B.V., 2019
http://creativecommons.org/licenses/by-nc-nd/3.0/es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier B.V.
publisher.none.fl_str_mv Elsevier B.V.
dc.source.none.fl_str_mv Articles publicats en revistes (Ciència dels Materials i Química Física)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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