Pd-Sn promoted NbOx/TiO2 catalysts for hydrogen photoproduction: Effect of Pd-Sn interaction on charge handling and reaction mechanism

Enhanced performance of Pd in the photocatalytic production of green hydrogen from methanol:water mixtures is achieved through the use of a sn-containing binary co-catalyst. For a Pd:Sn molar ratio of 1:1, the binary co-catalyst leads to an outstanding enhancement of activity under UV, visible and s...

ver descrição completa

Detalhes bibliográficos
Autores: Caudillo-Flores, Uriel, Fuentes-Moyado, Sergio, Alonso-Núñez, Gabriel, Barba-Nieto, Irene, Fernández García, Marcos, Kubacka, Anna
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2023
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:dnet:digitalcsic_::a4efe0fb943a029d2fe27728b525233e
Acesso em linha:http://hdl.handle.net/10261/356244
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85144931390&doi=10.1016%2fj.cej.2022.141134&partnerID=40&md5=be07b090fca8e3b64c08bb534feba218
Access Level:Acceso aberto
Palavra-chave:Hydrogen photo-production
UV–visible
Binary Pd-Sn
Reaction intermediates
id ES_a239c19173aad8f99ababa8b81330559
oai_identifier_str oai:dnet:digitalcsic_::a4efe0fb943a029d2fe27728b525233e
network_acronym_str ES
network_name_str España
repository_id_str
spelling Pd-Sn promoted NbOx/TiO2 catalysts for hydrogen photoproduction: Effect of Pd-Sn interaction on charge handling and reaction mechanismCaudillo-Flores, UrielFuentes-Moyado, SergioAlonso-Núñez, GabrielBarba-Nieto, IreneFernández García, MarcosKubacka, AnnaHydrogen photo-productionUV–visibleBinary Pd-SnReaction intermediatesEnhanced performance of Pd in the photocatalytic production of green hydrogen from methanol:water mixtures is achieved through the use of a sn-containing binary co-catalyst. For a Pd:Sn molar ratio of 1:1, the binary co-catalyst leads to an outstanding enhancement of activity under UV, visible and sunlight illumination, rendering a quantum efficiency value of 4 % in the latter case. A core–shell type interaction occurs between Pd metal nanoparticles and Sn oxo-hydroxyde nanoentities, resulting in an electronic modification of both components. The chemical effects of the binary co-catalyst were explored under reaction conditions using infrared spectroscopy. Overall, this study provides evidence that the electronic interaction between Pd and Sn promotes the adsorption and attack of the charge carrier species on the methanol molecule and controls the reaction mechanism, favoring the generation of hydrogen. This new system appears to be a strong candidate in the contribution to the new hydrogen economy through a green and eco-efficient process using renewable energy and reagents. © 2022 The Author(s)Authors acknowledge the financial support through PAPIIT-UNAM, Mexico (IA104422, CV100121, IN110922 and IN112922 projects) and through grant PID2019-105490RB-C31 funded by MCIN/AEI/10.13039/501100011033 and, as appropriate, by “ERDF A way of making Europe”, by the “European Union”. The authors thank D.A. Dominguez and F. Ruiz for obtaining XPS spectra and TEM images respectively. M.F.G. is fully indebted to Prof. F. Fernández-Martín for general discussions.Appendix A. Supplementary data The following are the Supplementary data to this articlePeer reviewedElsevier BVUniversidad Autónoma del Estado de MéxicoMinisterio de Ciencia e Innovación (España)Agencia Estatal de Investigación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/356244https://www.scopus.com/inward/record.uri?eid=2-s2.0-85144931390&doi=10.1016%2fj.cej.2022.141134&partnerID=40&md5=be07b090fca8e3b64c08bb534feba218reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésChemical Engineering Journalhttps://doi.org/10.1016/j.cej.2022.141134Síinfo:eu-repo/semantics/openAccessoai:dnet:digitalcsic_::a4efe0fb943a029d2fe27728b525233e2026-05-22T06:33:51Z
dc.title.none.fl_str_mv Pd-Sn promoted NbOx/TiO2 catalysts for hydrogen photoproduction: Effect of Pd-Sn interaction on charge handling and reaction mechanism
title Pd-Sn promoted NbOx/TiO2 catalysts for hydrogen photoproduction: Effect of Pd-Sn interaction on charge handling and reaction mechanism
spellingShingle Pd-Sn promoted NbOx/TiO2 catalysts for hydrogen photoproduction: Effect of Pd-Sn interaction on charge handling and reaction mechanism
Caudillo-Flores, Uriel
Hydrogen photo-production
UV–visible
Binary Pd-Sn
Reaction intermediates
title_short Pd-Sn promoted NbOx/TiO2 catalysts for hydrogen photoproduction: Effect of Pd-Sn interaction on charge handling and reaction mechanism
title_full Pd-Sn promoted NbOx/TiO2 catalysts for hydrogen photoproduction: Effect of Pd-Sn interaction on charge handling and reaction mechanism
title_fullStr Pd-Sn promoted NbOx/TiO2 catalysts for hydrogen photoproduction: Effect of Pd-Sn interaction on charge handling and reaction mechanism
title_full_unstemmed Pd-Sn promoted NbOx/TiO2 catalysts for hydrogen photoproduction: Effect of Pd-Sn interaction on charge handling and reaction mechanism
title_sort Pd-Sn promoted NbOx/TiO2 catalysts for hydrogen photoproduction: Effect of Pd-Sn interaction on charge handling and reaction mechanism
dc.creator.none.fl_str_mv Caudillo-Flores, Uriel
Fuentes-Moyado, Sergio
Alonso-Núñez, Gabriel
Barba-Nieto, Irene
Fernández García, Marcos
Kubacka, Anna
author Caudillo-Flores, Uriel
author_facet Caudillo-Flores, Uriel
Fuentes-Moyado, Sergio
Alonso-Núñez, Gabriel
Barba-Nieto, Irene
Fernández García, Marcos
Kubacka, Anna
author_role author
author2 Fuentes-Moyado, Sergio
Alonso-Núñez, Gabriel
Barba-Nieto, Irene
Fernández García, Marcos
Kubacka, Anna
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad Autónoma del Estado de México
Ministerio de Ciencia e Innovación (España)
Agencia Estatal de Investigación (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Hydrogen photo-production
UV–visible
Binary Pd-Sn
Reaction intermediates
topic Hydrogen photo-production
UV–visible
Binary Pd-Sn
Reaction intermediates
description Enhanced performance of Pd in the photocatalytic production of green hydrogen from methanol:water mixtures is achieved through the use of a sn-containing binary co-catalyst. For a Pd:Sn molar ratio of 1:1, the binary co-catalyst leads to an outstanding enhancement of activity under UV, visible and sunlight illumination, rendering a quantum efficiency value of 4 % in the latter case. A core–shell type interaction occurs between Pd metal nanoparticles and Sn oxo-hydroxyde nanoentities, resulting in an electronic modification of both components. The chemical effects of the binary co-catalyst were explored under reaction conditions using infrared spectroscopy. Overall, this study provides evidence that the electronic interaction between Pd and Sn promotes the adsorption and attack of the charge carrier species on the methanol molecule and controls the reaction mechanism, favoring the generation of hydrogen. This new system appears to be a strong candidate in the contribution to the new hydrogen economy through a green and eco-efficient process using renewable energy and reagents. © 2022 The Author(s)
publishDate 2023
dc.date.none.fl_str_mv 2023
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/10261/356244
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85144931390&doi=10.1016%2fj.cej.2022.141134&partnerID=40&md5=be07b090fca8e3b64c08bb534feba218
url http://hdl.handle.net/10261/356244
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85144931390&doi=10.1016%2fj.cej.2022.141134&partnerID=40&md5=be07b090fca8e3b64c08bb534feba218
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Chemical Engineering Journal
https://doi.org/10.1016/j.cej.2022.141134
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier BV
publisher.none.fl_str_mv Elsevier BV
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
_version_ 1869415245534986240
score 15.811543

Registros relacionados