Governing principles of hydration of mixed proton conducting Co-based double perovskites

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dc.contributor.affiliationInstituto Universitario Mixto de Tecnología Química
dc.contributor.authorStrandbakke, Ragnares_ES
dc.contributor.authorWachowski, Sebastian Leches_ES
dc.contributor.authorBalaguer Ramirez, Maria
dc.contributor.authorVines, Lassees_ES
dc.contributor.authorSky, Thomas Nesetes_ES
dc.contributor.authorSzpunar, Igaes_ES
dc.contributor.authorCarvalho, Patricia A.es_ES
dc.contributor.authorMielewczyk-Gryn, Aleksandraes_ES
dc.contributor.authorSorby, Magnus H.es_ES
dc.contributor.authorGazda, Mariaes_ES
dc.contributor.authorSerra Alfaro, José Manuel
dc.contributor.authorNorby, Trulses_ES
dc.contributor.funderEuropean Commissiones_ES
dc.contributor.funderResearch Council of Norwayes_ES
dc.contributor.funderAgencia Estatal de Investigaciónes_ES
dc.date.accessioned2026-06-08T10:14:54Z
dc.date.available2026-06-08T10:14:54Z
dc.date.issued2026-03-23es_ES
dc.description.abstract[EN] Proton ceramic electrochemical cells PCECs hold promise for efficient, sustainable production and use of hydrogen. The positive electrodes are mixed proton conducting perovskites that facilitate water splitting and oxygen reduction, but the factors that determine the protonation are poorly understood. Here, we establish the governing principles of protonation through a study of hydration of 45 double perovskites with the general formula A(I)A(II)Co(2)O(6_delta), having Ba or Ba+Sr on A(I) and a mix of rare earths (Y and lanthanides Ln = La, Pr, Nd, Sm, Gd, Dy, Tb, Lu) on A(II). We show how hydration is coupled to the A-site basicity and disorder as well as population of electron holes in the Co-O bond (Co oxidation state), promoted by a closed or semi-closed Ln 4 f shell, i.e., Ln = La, Gd, Lu.es_ES
dc.description.accrualMethodSes_ES
dc.description.bibliographicCitationStrandbakke, R.; Wachowski, SL.; Balaguer Ramirez, Maria; Vines, L.; Sky, TN.; Szpunar, I.; Carvalho, PA.... (2026). Governing principles of hydration of mixed proton conducting Co-based double perovskites. Nature Communications. 17(1). https://doi.org/10.1038/s41467-026-70212-wes_ES
dc.description.issue1es_ES
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dc.description.sponsorshipThis work is financed by The Research Council of Norway (Grant nO 272797 "GoPHy MiCO" and nO 299736 "FunKeyCat") through the M-ERA.NET Joint Call 2016 and 2018 (R.S., M.H.S., T.N.). Project "FunKeyCat" is supported by the National Science Centre, Poland, under the M-ERA.NET 2, which has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement no 685451 (2016/22/Z/ST5/00691) (S.L.W., A.M.G., M.G.), and the Spanish Government through the National Research Agency AEI (grant PCIN-2017-125) (M.B., J.A.S.). This publication was partially developed under the provision of the Polish Ministry and Higher Education project "Support for research and development with the use of research infrastructure of the National Synchrotron Radiation Centre SOLARIS" under contract nr 1/SOL/2021/2 (S.L.W., A.M.G., M.G.). We acknowledge the SOLARIS Centre for access to the Beamline PIRX, where the measurements were performed. We thank Dr. Marcin Zaj & aogon;c for assistance (proposal nos. 191011 and 201036). We also thank Dr. Vegar & Oslash;ygarden for Rietveld refinements of NPD data.es_ES
dc.description.volume17es_ES
dc.identifier.doi10.1038/s41467-026-70212-wes_ES
dc.identifier.issn2041-1723es_ES
dc.identifier.pmcidPMC13171892es_ES
dc.identifier.pmid41872175es_ES
dc.identifier.urihttps://riunet.upv.es/handle/10251/235903
dc.languageIngléses_ES
dc.publisherNature Publishing Groupes_ES
dc.relation.ispartofNature Communicationses_ES
dc.relation.pasarelaS\586902es_ES
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/PCIN-2017-125/ES/PRINCIPIO EN HIDRATACION DE OXIDOS CONDUCTORES MIXTOS/es_ES
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/685451/EU/ERA-NET for materials research and innovation/es_ES
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN//272797//GoPHy MiCO/es_ES
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN//299736/es_ES
dc.relation.publisherversionhttps://doi.org/10.1038/s41467-026-70212-wes_ES
dc.rightsReconocimiento (by)es_ES
dc.rights.accessRightsAbiertoes_ES
dc.subjectProton ceramic electrochemical cellses_ES
dc.subjectDouble perovskiteses_ES
dc.subjectProton conductiones_ES
dc.subjectHydration mechanismses_ES
dc.subjectA-site basicityes_ES
dc.subjectHydrogen productiones_ES
dc.titleGoverning principles of hydration of mixed proton conducting Co-based double perovskiteses_ES
dc.typeArtículoes_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES
dspace.entity.typePublication
person.identifier239077
person.identifier41579
person.identifier.orcid0000-0002-7098-9235
person.identifier.orcid0000-0002-1515-1106
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