Nanoarchitectonics of fibrous clays as fillers of improved proton-conducting membranes for fuel-cell applications

This work reports on the development of various nanostructured materials based on the assembly of SiO2, TiO2 and ZnO nanoparticles to sepiolite fibers (Sep) and their incorporation as a filler of Nafion to improve their performance as proton exchange membrane for fuel cells applications. Various nan...

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Detalhes bibliográficos
Autores: Thmaini, Noura, Charradi, K., Ahmed, Z., Chtourou, R., Aranda, Pilar
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:digital.csic.es:10261/351324
Acesso em linha:http://hdl.handle.net/10261/351324
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85163792981&doi=10.1016%2fj.clay.2023.107019&partnerID=40&md5=826595bf835e0bbbf0f8e41abdc4c2d9
Access Level:Acceso aberto
Palavra-chave:Composite membranes
Nafion
Nanoarchitectures
Nanoparticles
Proton conductivity
Sepiolite
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spelling Nanoarchitectonics of fibrous clays as fillers of improved proton-conducting membranes for fuel-cell applicationsThmaini, NouraCharradi, K.Ahmed, Z.Chtourou, R.Aranda, PilarComposite membranesNafionNanoarchitecturesNanoparticlesProton conductivitySepioliteThis work reports on the development of various nanostructured materials based on the assembly of SiO2, TiO2 and ZnO nanoparticles to sepiolite fibers (Sep) and their incorporation as a filler of Nafion to improve their performance as proton exchange membrane for fuel cells applications. Various nanoarchitectures, SiO2-Sep, TiO2-SiO2-Sep and ZnO@SiO2-Sep, were prepared following a colloidal route based on the controlled hydrolysis of alkoxide precursos (tetramethoxysilane and titanium tetraisopropoxide) in the presence of hexadecyltrimethylammonium-sepiolite. The SiO2 and TiO2 nanoparticles were consolidated after a thermal treatment that also removes the surfactant and assures their assembly to the clay. In the case of the ZnO@SiO2-Sep nanostructured material, previously formed ZnO nanoparticles were assembled to the intermediated produced after the hydrolysis-polycondensation of tetramethoxysilane on the organoclay, followed by a thermal treatment that consolidates the nanoarchitecture. The resulting nanoarchitectures were characterized by XRD, FTIR, SEM, TEM and N2 adsorption-desorption isotherms, confirming the formation of the nanoparticles and their assembly through silanol groups at the external surface of the clay. Nafion-based composite membranes were prepared using as nanofiller the produced SiO2-Sep, TiO2-SiO2-Sep and ZnO@SiO2-Sep nanoarchitectures. Thermal properties, water uptake and proton conductivity of the resulting composite membranes were evaluated in comparison to those of a neat Nafion membrane to ascertain their potential usefulness for applications in PEMFC. © 2023 The AuthorsAuthors acknowledge financial support from the MCIN/AEI/10.13039/501100011033 (Spain, project PID2019-105479RB-I00) and from the CSIC (Spain, project COOPA20373). We acknowledge support of the publication fee by the CSIC Open Access Publication Support Initiative through its Unit of Information Resources for Research (URICI). Authors also thanks Dr. J. Perez-Carvajal for fruitful discussions on the textural properties study.Supplementary dataPeer reviewedElsevier BVConsejo 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/10261/351324https://www.scopus.com/inward/record.uri?eid=2-s2.0-85163792981&doi=10.1016%2fj.clay.2023.107019&partnerID=40&md5=826595bf835e0bbbf0f8e41abdc4c2d9reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésApplied Clay Sciencehttps://doi.org/10.1016/j.clay.2023.107019Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3513242026-05-22T06:33:51Z
dc.title.none.fl_str_mv Nanoarchitectonics of fibrous clays as fillers of improved proton-conducting membranes for fuel-cell applications
title Nanoarchitectonics of fibrous clays as fillers of improved proton-conducting membranes for fuel-cell applications
spellingShingle Nanoarchitectonics of fibrous clays as fillers of improved proton-conducting membranes for fuel-cell applications
Thmaini, Noura
Composite membranes
Nafion
Nanoarchitectures
Nanoparticles
Proton conductivity
Sepiolite
title_short Nanoarchitectonics of fibrous clays as fillers of improved proton-conducting membranes for fuel-cell applications
title_full Nanoarchitectonics of fibrous clays as fillers of improved proton-conducting membranes for fuel-cell applications
title_fullStr Nanoarchitectonics of fibrous clays as fillers of improved proton-conducting membranes for fuel-cell applications
title_full_unstemmed Nanoarchitectonics of fibrous clays as fillers of improved proton-conducting membranes for fuel-cell applications
title_sort Nanoarchitectonics of fibrous clays as fillers of improved proton-conducting membranes for fuel-cell applications
dc.creator.none.fl_str_mv Thmaini, Noura
Charradi, K.
Ahmed, Z.
Chtourou, R.
Aranda, Pilar
author Thmaini, Noura
author_facet Thmaini, Noura
Charradi, K.
Ahmed, Z.
Chtourou, R.
Aranda, Pilar
author_role author
author2 Charradi, K.
Ahmed, Z.
Chtourou, R.
Aranda, Pilar
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Composite membranes
Nafion
Nanoarchitectures
Nanoparticles
Proton conductivity
Sepiolite
topic Composite membranes
Nafion
Nanoarchitectures
Nanoparticles
Proton conductivity
Sepiolite
description This work reports on the development of various nanostructured materials based on the assembly of SiO2, TiO2 and ZnO nanoparticles to sepiolite fibers (Sep) and their incorporation as a filler of Nafion to improve their performance as proton exchange membrane for fuel cells applications. Various nanoarchitectures, SiO2-Sep, TiO2-SiO2-Sep and ZnO@SiO2-Sep, were prepared following a colloidal route based on the controlled hydrolysis of alkoxide precursos (tetramethoxysilane and titanium tetraisopropoxide) in the presence of hexadecyltrimethylammonium-sepiolite. The SiO2 and TiO2 nanoparticles were consolidated after a thermal treatment that also removes the surfactant and assures their assembly to the clay. In the case of the ZnO@SiO2-Sep nanostructured material, previously formed ZnO nanoparticles were assembled to the intermediated produced after the hydrolysis-polycondensation of tetramethoxysilane on the organoclay, followed by a thermal treatment that consolidates the nanoarchitecture. The resulting nanoarchitectures were characterized by XRD, FTIR, SEM, TEM and N2 adsorption-desorption isotherms, confirming the formation of the nanoparticles and their assembly through silanol groups at the external surface of the clay. Nafion-based composite membranes were prepared using as nanofiller the produced SiO2-Sep, TiO2-SiO2-Sep and ZnO@SiO2-Sep nanoarchitectures. Thermal properties, water uptake and proton conductivity of the resulting composite membranes were evaluated in comparison to those of a neat Nafion membrane to ascertain their potential usefulness for applications in PEMFC. © 2023 The Authors
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/10261/351324
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85163792981&doi=10.1016%2fj.clay.2023.107019&partnerID=40&md5=826595bf835e0bbbf0f8e41abdc4c2d9
url http://hdl.handle.net/10261/351324
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85163792981&doi=10.1016%2fj.clay.2023.107019&partnerID=40&md5=826595bf835e0bbbf0f8e41abdc4c2d9
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Applied Clay Science
https://doi.org/10.1016/j.clay.2023.107019
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
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score 15,81155

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