Experimental evaluation and energy analysis of a two-step water splitting thermochemical cycle for solar hydrogen production based on La0.8Sr0.2CoO3-δ perovskite

The authors thank “Universidad Rey Juan Carlos”, “Comunidad de Madrid” and European Structural Funds for their financial support to SOLTOCOMB Young Researchers R&D Project (Ref. M − 2174) and ACES2030-CM Project (S2018/EMT-4319).

Detalles Bibliográficos
Autores: Orfila, María, Linares, María, Pérez, Antonio, Barras García, Inés, Molina Gil, Raúl, Marugán, Javier, Botas, Juan Ángel, Sanz, Raúl
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universidad Rey Juan Carlos
Repositorio:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
OAI Identifier:oai:burjcdigital.urjc.es:10115/24428
Acceso en línea:https://hdl.handle.net/10115/24428
Access Level:acceso abierto
Palabra clave:Hydrogen production
Thermochemical water splitting
Perovskite
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spelling Experimental evaluation and energy analysis of a two-step water splitting thermochemical cycle for solar hydrogen production based on La0.8Sr0.2CoO3-δ perovskiteOrfila, MaríaLinares, MaríaPérez, AntonioBarras García, InésMolina Gil, RaúlMarugán, JavierBotas, Juan ÁngelSanz, RaúlHydrogen productionThermochemical water splittingPerovskiteThe authors thank “Universidad Rey Juan Carlos”, “Comunidad de Madrid” and European Structural Funds for their financial support to SOLTOCOMB Young Researchers R&D Project (Ref. M − 2174) and ACES2030-CM Project (S2018/EMT-4319).A study of the hydrogen production by thermochemical water splitting with a commercial perovskite La0.8Sr0.2CoO3-d(denoted as LSC) under different temperature conditions is presented. The experiments revealed that high operational temperatures for the thermal reduction step (>1000 C) implied a decrease in the hydrogen production with each consecutive cycle due to the formation of segregated phases of Co3O4. On the other hand, the experiments at lower thermal reduction operational temperatures indicated that the material had a stable behaviour with a hydrogen production of 15.8 cm3 STP/gmaterial$cycle during 20 consecutive cycles at 1000 C, being negligible at 800 C. This results comparable or even higher than the maximum values reported in literature for other perovskites (9.80 e10.50 STP/gmaterial$cycle), but at considerable lower temperatures in the reduction step of the thermochemical cycle for the water splitting (1000 vs 1300e1400 C). The LSC keeps the perovskite type structure after each thermochemical cycle, ensuring a stable and constant H2 production. An energy and exergy evaluation of the cycle led to values of solar to fuel efficiency and exergy efficiency of 0.67 and 0.36 (as a percentage of 1), respectively, which are higher than those reported for other metal oxides redox pairs commonly found in the literature, being the reduction temperature remarkably lower. These facts point out to the LSC perovskite as a promising material for full-scale applications of solar hydrogen production with good cyclability and compatible with current concentrating solar power technology.Elsevier202320232022info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10115/24428reponame:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlosinstname:Universidad Rey Juan CarlosInglésAtribución 4.0 Internacionalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:burjcdigital.urjc.es:10115/244282026-06-24T12:48:17Z
dc.title.none.fl_str_mv Experimental evaluation and energy analysis of a two-step water splitting thermochemical cycle for solar hydrogen production based on La0.8Sr0.2CoO3-δ perovskite
title Experimental evaluation and energy analysis of a two-step water splitting thermochemical cycle for solar hydrogen production based on La0.8Sr0.2CoO3-δ perovskite
spellingShingle Experimental evaluation and energy analysis of a two-step water splitting thermochemical cycle for solar hydrogen production based on La0.8Sr0.2CoO3-δ perovskite
Orfila, María
Hydrogen production
Thermochemical water splitting
Perovskite
title_short Experimental evaluation and energy analysis of a two-step water splitting thermochemical cycle for solar hydrogen production based on La0.8Sr0.2CoO3-δ perovskite
title_full Experimental evaluation and energy analysis of a two-step water splitting thermochemical cycle for solar hydrogen production based on La0.8Sr0.2CoO3-δ perovskite
title_fullStr Experimental evaluation and energy analysis of a two-step water splitting thermochemical cycle for solar hydrogen production based on La0.8Sr0.2CoO3-δ perovskite
title_full_unstemmed Experimental evaluation and energy analysis of a two-step water splitting thermochemical cycle for solar hydrogen production based on La0.8Sr0.2CoO3-δ perovskite
title_sort Experimental evaluation and energy analysis of a two-step water splitting thermochemical cycle for solar hydrogen production based on La0.8Sr0.2CoO3-δ perovskite
dc.creator.none.fl_str_mv Orfila, María
Linares, María
Pérez, Antonio
Barras García, Inés
Molina Gil, Raúl
Marugán, Javier
Botas, Juan Ángel
Sanz, Raúl
author Orfila, María
author_facet Orfila, María
Linares, María
Pérez, Antonio
Barras García, Inés
Molina Gil, Raúl
Marugán, Javier
Botas, Juan Ángel
Sanz, Raúl
author_role author
author2 Linares, María
Pérez, Antonio
Barras García, Inés
Molina Gil, Raúl
Marugán, Javier
Botas, Juan Ángel
Sanz, Raúl
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Hydrogen production
Thermochemical water splitting
Perovskite
topic Hydrogen production
Thermochemical water splitting
Perovskite
description The authors thank “Universidad Rey Juan Carlos”, “Comunidad de Madrid” and European Structural Funds for their financial support to SOLTOCOMB Young Researchers R&D Project (Ref. M − 2174) and ACES2030-CM Project (S2018/EMT-4319).
publishDate 2022
dc.date.none.fl_str_mv 2022
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10115/24428
url https://hdl.handle.net/10115/24428
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv Atribución 4.0 Internacional
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Atribución 4.0 Internacional
http://creativecommons.org/licenses/by/4.0/
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:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
instname:Universidad Rey Juan Carlos
instname_str Universidad Rey Juan Carlos
reponame_str BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
collection BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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