Optimizing the electrocatalytic hydrogen production with vanadyl porphyrin impregnated on mesoporous SiO2 nanoparticles

Vanadyl octaethyl porphyrin (VOP) impregnated on SiO2 nanoparticles (SiO2@VOP) was investigated as an electrocatalyst for the water-splitting reaction for the cathodic hydrogen evolution reaction (HER). Multi-valent oxidation states of VO2+ center and multi-electron transfer properties of the porphy...

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Authors: Myltykbayeva, Zhannur, López Nieto, José Manuel, Moreno-Torralbo, Beatriz M., Concepción, Patricia, Abylaikhan, Akerke, Koca, Atıf
Format: article
Status:Published version
Publication Date:2025
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/402686
Online Access:http://hdl.handle.net/10261/402686
https://api.elsevier.com/content/abstract/scopus_id/85215126131
Access Level:Open access
Keyword:Electrocatalyst
Electrode modification
Hydrogen evolution reaction (HER)
Vanadyl porphyrin
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spelling Optimizing the electrocatalytic hydrogen production with vanadyl porphyrin impregnated on mesoporous SiO2 nanoparticlesMyltykbayeva, ZhannurLópez Nieto, José ManuelMoreno-Torralbo, Beatriz M.Concepción, PatriciaAbylaikhan, AkerkeKoca, AtıfElectrocatalystElectrode modificationHydrogen evolution reaction (HER)Vanadyl porphyrinVanadyl octaethyl porphyrin (VOP) impregnated on SiO2 nanoparticles (SiO2@VOP) was investigated as an electrocatalyst for the water-splitting reaction for the cathodic hydrogen evolution reaction (HER). Multi-valent oxidation states of VO2+ center and multi-electron transfer properties of the porphyrin ring made this complex a potential candidate for the electrocatalytic processes. Altering the electrode modification protocol by changing the amount of the VOP, carbon black (CB), and Nafion (Nf) binder on the modification influenced the active sites, thus consequently enhancing the electrocatalytic activity of SiO2@VOP composites. Electrocatalytic HER measurements indicated excellent activity with low overpotential (108 mV), small Tafel slope (98 mV/dec), and high current density stability with the GCE/CB@SiO2@VOP(B) electrode.This work is supported by the Ministry of Science and Higher Education of the Republic of Kazakhstan (AP23486934, Development of new efficient photocatalytic systems for hydrogen production using composites of metal disulfides and petroleum porphyrins") and the Spanish Ministry of Science and Innovation (TED2021-130756B-C32, funded by MCIN/AEI/10.13039/501100011033 and by “ERDF A way of making Europe” by the European Union NextGenerationEU/PRTR).Peer reviewedElsevierMinistry of Education and Science (Kazakhstan)Ministerio de Ciencia e Innovación (España)Agencia Estatal de Investigación (España)European CommissionLópez Nieto, José Manuel [0000-0002-6960-3219]Koca, Atıf [0000-0003-0141-5817]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252025info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/402686https://api.elsevier.com/content/abstract/scopus_id/85215126131reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/ TED2021-130756B-C32/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI https://doi.org/10.1016/j.electacta.2025.145686https://doi.org/10.1016/j.electacta.2025.145686Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4026862026-05-22T06:33:51Z
dc.title.none.fl_str_mv Optimizing the electrocatalytic hydrogen production with vanadyl porphyrin impregnated on mesoporous SiO2 nanoparticles
title Optimizing the electrocatalytic hydrogen production with vanadyl porphyrin impregnated on mesoporous SiO2 nanoparticles
spellingShingle Optimizing the electrocatalytic hydrogen production with vanadyl porphyrin impregnated on mesoporous SiO2 nanoparticles
Myltykbayeva, Zhannur
Electrocatalyst
Electrode modification
Hydrogen evolution reaction (HER)
Vanadyl porphyrin
title_short Optimizing the electrocatalytic hydrogen production with vanadyl porphyrin impregnated on mesoporous SiO2 nanoparticles
title_full Optimizing the electrocatalytic hydrogen production with vanadyl porphyrin impregnated on mesoporous SiO2 nanoparticles
title_fullStr Optimizing the electrocatalytic hydrogen production with vanadyl porphyrin impregnated on mesoporous SiO2 nanoparticles
title_full_unstemmed Optimizing the electrocatalytic hydrogen production with vanadyl porphyrin impregnated on mesoporous SiO2 nanoparticles
title_sort Optimizing the electrocatalytic hydrogen production with vanadyl porphyrin impregnated on mesoporous SiO2 nanoparticles
dc.creator.none.fl_str_mv Myltykbayeva, Zhannur
López Nieto, José Manuel
Moreno-Torralbo, Beatriz M.
Concepción, Patricia
Abylaikhan, Akerke
Koca, Atıf
author Myltykbayeva, Zhannur
author_facet Myltykbayeva, Zhannur
López Nieto, José Manuel
Moreno-Torralbo, Beatriz M.
Concepción, Patricia
Abylaikhan, Akerke
Koca, Atıf
author_role author
author2 López Nieto, José Manuel
Moreno-Torralbo, Beatriz M.
Concepción, Patricia
Abylaikhan, Akerke
Koca, Atıf
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Ministry of Education and Science (Kazakhstan)
Ministerio de Ciencia e Innovación (España)
Agencia Estatal de Investigación (España)
European Commission
López Nieto, José Manuel [0000-0002-6960-3219]
Koca, Atıf [0000-0003-0141-5817]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Electrocatalyst
Electrode modification
Hydrogen evolution reaction (HER)
Vanadyl porphyrin
topic Electrocatalyst
Electrode modification
Hydrogen evolution reaction (HER)
Vanadyl porphyrin
description Vanadyl octaethyl porphyrin (VOP) impregnated on SiO2 nanoparticles (SiO2@VOP) was investigated as an electrocatalyst for the water-splitting reaction for the cathodic hydrogen evolution reaction (HER). Multi-valent oxidation states of VO2+ center and multi-electron transfer properties of the porphyrin ring made this complex a potential candidate for the electrocatalytic processes. Altering the electrode modification protocol by changing the amount of the VOP, carbon black (CB), and Nafion (Nf) binder on the modification influenced the active sites, thus consequently enhancing the electrocatalytic activity of SiO2@VOP composites. Electrocatalytic HER measurements indicated excellent activity with low overpotential (108 mV), small Tafel slope (98 mV/dec), and high current density stability with the GCE/CB@SiO2@VOP(B) electrode.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025
2025
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/10261/402686
https://api.elsevier.com/content/abstract/scopus_id/85215126131
url http://hdl.handle.net/10261/402686
https://api.elsevier.com/content/abstract/scopus_id/85215126131
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/ TED2021-130756B-C32/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023
The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI https://doi.org/10.1016/j.electacta.2025.145686
https://doi.org/10.1016/j.electacta.2025.145686
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 Elsevier
publisher.none.fl_str_mv Elsevier
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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score 15,812455

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