Characterization of PBI/Graphene Oxide Composite Membranes for the SO2 Depolarized Electrolysis at High Temperature

In this work, polybenzimidazole (PBI) membranes with different graphene oxide (GO) contents (0.5, 1.0, 2.0, and 3.0 wt %) as organic filler have been prepared. The X-ray diffraction confirms the incorporation of the filler into the polymeric membrane. The composite GO-based PBI membranes show better...

Descripción completa

Detalles Bibliográficos
Autores: Díaz Abad, Sergio, Fernández-Mancebo, Sandra, Rodrigo Rodrigo, Manuel Andrés, Lobato Bajo, Justo
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universidad de Castilla-La Mancha
Repositorio:RUIdeRA. Repositorio Institucional de la UCLM
OAI Identifier:oai:ruidera.uclm.es:10578/30067
Acceso en línea:http://hdl.handle.net/10578/30067
Access Level:acceso abierto
Palabra clave:Green hydrogen
Sulfur dioxide depolarized electrolysis
Polybenzimidazole
Composite
Electrolysis
Graphene dioxide
High-temperature
Hidrógeno verde
Electrólisis despolarizada de dióxido de azufre
Polibencimidazol
Compuesto
Electrólisis
Dióxido de grafeno
Alta temperatura
id ES_db4e80fa08ebc6a095b3c7d71cf0dbb8
oai_identifier_str oai:ruidera.uclm.es:10578/30067
network_acronym_str ES
network_name_str España
repository_id_str
spelling Characterization of PBI/Graphene Oxide Composite Membranes for the SO2 Depolarized Electrolysis at High TemperatureDíaz Abad, SergioFernández-Mancebo, SandraRodrigo Rodrigo, Manuel AndrésLobato Bajo, JustoGreen hydrogenSulfur dioxide depolarized electrolysisPolybenzimidazoleCompositeElectrolysisGraphene dioxideHigh-temperatureHidrógeno verdeElectrólisis despolarizada de dióxido de azufrePolibencimidazolCompuestoElectrólisisDióxido de grafenoAlta temperaturaIn this work, polybenzimidazole (PBI) membranes with different graphene oxide (GO) contents (0.5, 1.0, 2.0, and 3.0 wt %) as organic filler have been prepared. The X-ray diffraction confirms the incorporation of the filler into the polymeric membrane. The composite GO-based PBI membranes show better proton conductivity at high temperature (110–170 °C) than the pristine one. Moreover, the hydrophobicity of the PBI membranes is also improved, enhancing water management. The chemical stability demonstrates the benefit of the incorporation of GO in the PBI matrix. What is more, the composite PBI-based membranes show better phosphoric acid retention capability. For the first time, the results of the SO2-depolarized electrolysis for hydrogen production at high temperature (130 °C) using phosphoric acid-doped polybenzimidazole (PBI) membranes with the different GO contents are shown. The benefit of the organic filler is demonstrated, as H2SO4 production is 1.5 times higher when the membrane with a content of 1 wt % of GO is used. Moreover, three times more hydrogen is produced with the membrane containing 2 wt % of GO compared with the non-modified membrane. The obtained results are very promising and provide open research for this kind of composite membranes for green hydrogen production by the Westinghouse cycleEn este trabajo se han preparado membranas de polibencimidazol (PBI) con diferentes contenidos de óxido de grafeno (GO) (0,5, 1,0, 2,0 y 3,0% en peso) como relleno orgánico. La difracción de rayos X confirma la incorporación del relleno en la membrana polimérica. Las membranas PBI compuestas basadas en GO muestran una mejor conductividad de protones a alta temperatura (110–170 °C) que la prístina. Además, también se mejora la hidrofobicidad de las membranas de PBI, mejorando la gestión del agua. La estabilidad química demuestra el beneficio de la incorporación de GO en la matriz de PBI. Además, las membranas compuestas basadas en PBI muestran una mejor capacidad de retención de ácido fosfórico. Por primera vez, los resultados del SO 2-electrólisis despolarizada para la producción de hidrógeno a alta temperatura (130 °C) utilizando membranas de polibencimidazol dopado con ácido fosfórico (PBI) con los diferentes contenidos de GO. Se demuestra el beneficio del relleno orgánico, ya que la producción de H 2 SO 4 es 1,5 veces mayor cuando se utiliza la membrana con un contenido del 1 % en peso de GO. Además, se produce tres veces más hidrógeno con la membrana que contiene 2 % en peso de GO en comparación con la membrana no modificada. Los resultados obtenidos son muy prometedores y abren la posibilidad de investigar este tipo de membranas compuestas para la producción de hidrógeno verde por el ciclo de Westinghouse.MDPI202220222022info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttp://hdl.handle.net/10578/30067reponame:RUIdeRA. Repositorio Institucional de la UCLMinstname:Universidad de Castilla-La ManchaInglésinfo:eu-repo/semantics/openAccessoai:ruidera.uclm.es:10578/300672026-05-27T07:36:41Z
dc.title.none.fl_str_mv Characterization of PBI/Graphene Oxide Composite Membranes for the SO2 Depolarized Electrolysis at High Temperature
title Characterization of PBI/Graphene Oxide Composite Membranes for the SO2 Depolarized Electrolysis at High Temperature
spellingShingle Characterization of PBI/Graphene Oxide Composite Membranes for the SO2 Depolarized Electrolysis at High Temperature
Díaz Abad, Sergio
Green hydrogen
Sulfur dioxide depolarized electrolysis
Polybenzimidazole
Composite
Electrolysis
Graphene dioxide
High-temperature
Hidrógeno verde
Electrólisis despolarizada de dióxido de azufre
Polibencimidazol
Compuesto
Electrólisis
Dióxido de grafeno
Alta temperatura
title_short Characterization of PBI/Graphene Oxide Composite Membranes for the SO2 Depolarized Electrolysis at High Temperature
title_full Characterization of PBI/Graphene Oxide Composite Membranes for the SO2 Depolarized Electrolysis at High Temperature
title_fullStr Characterization of PBI/Graphene Oxide Composite Membranes for the SO2 Depolarized Electrolysis at High Temperature
title_full_unstemmed Characterization of PBI/Graphene Oxide Composite Membranes for the SO2 Depolarized Electrolysis at High Temperature
title_sort Characterization of PBI/Graphene Oxide Composite Membranes for the SO2 Depolarized Electrolysis at High Temperature
dc.creator.none.fl_str_mv Díaz Abad, Sergio
Fernández-Mancebo, Sandra
Rodrigo Rodrigo, Manuel Andrés
Lobato Bajo, Justo
author Díaz Abad, Sergio
author_facet Díaz Abad, Sergio
Fernández-Mancebo, Sandra
Rodrigo Rodrigo, Manuel Andrés
Lobato Bajo, Justo
author_role author
author2 Fernández-Mancebo, Sandra
Rodrigo Rodrigo, Manuel Andrés
Lobato Bajo, Justo
author2_role author
author
author
dc.subject.none.fl_str_mv Green hydrogen
Sulfur dioxide depolarized electrolysis
Polybenzimidazole
Composite
Electrolysis
Graphene dioxide
High-temperature
Hidrógeno verde
Electrólisis despolarizada de dióxido de azufre
Polibencimidazol
Compuesto
Electrólisis
Dióxido de grafeno
Alta temperatura
topic Green hydrogen
Sulfur dioxide depolarized electrolysis
Polybenzimidazole
Composite
Electrolysis
Graphene dioxide
High-temperature
Hidrógeno verde
Electrólisis despolarizada de dióxido de azufre
Polibencimidazol
Compuesto
Electrólisis
Dióxido de grafeno
Alta temperatura
description In this work, polybenzimidazole (PBI) membranes with different graphene oxide (GO) contents (0.5, 1.0, 2.0, and 3.0 wt %) as organic filler have been prepared. The X-ray diffraction confirms the incorporation of the filler into the polymeric membrane. The composite GO-based PBI membranes show better proton conductivity at high temperature (110–170 °C) than the pristine one. Moreover, the hydrophobicity of the PBI membranes is also improved, enhancing water management. The chemical stability demonstrates the benefit of the incorporation of GO in the PBI matrix. What is more, the composite PBI-based membranes show better phosphoric acid retention capability. For the first time, the results of the SO2-depolarized electrolysis for hydrogen production at high temperature (130 °C) using phosphoric acid-doped polybenzimidazole (PBI) membranes with the different GO contents are shown. The benefit of the organic filler is demonstrated, as H2SO4 production is 1.5 times higher when the membrane with a content of 1 wt % of GO is used. Moreover, three times more hydrogen is produced with the membrane containing 2 wt % of GO compared with the non-modified membrane. The obtained results are very promising and provide open research for this kind of composite membranes for green hydrogen production by the Westinghouse cycle
publishDate 2022
dc.date.none.fl_str_mv 2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10578/30067
url http://hdl.handle.net/10578/30067
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:RUIdeRA. Repositorio Institucional de la UCLM
instname:Universidad de Castilla-La Mancha
instname_str Universidad de Castilla-La Mancha
reponame_str RUIdeRA. Repositorio Institucional de la UCLM
collection RUIdeRA. Repositorio Institucional de la UCLM
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869421662653382656
score 15.300719

Similares en LA Referencia