000145617 001__ 145617
000145617 005__ 20260217205531.0
000145617 0247_ $$2doi$$a10.1021/acs.chemmater.4c02023
000145617 0248_ $$2sideral$$a140546
000145617 037__ $$aART-2024-140546
000145617 041__ $$aeng
000145617 100__ $$aVarela-Domínguez, Noa
000145617 245__ $$aExploring topochemical oxidation reactions for reversible tuning of thermal conductivity in Perovskite Fe Oxides
000145617 260__ $$c2024
000145617 5060_ $$aAccess copy available to the general public$$fUnrestricted
000145617 5203_ $$aWe present a study on the reversibility of thermal conductivity in iron oxides through topochemical oxygen exchange between brownmillerite (BM) (Ca,Sr)FeO2.5 and perovskite (PV) (Ca,Sr)FeO3.0. By using different oxidation methods, including gas phase (O2/O3), liquid phase (NaOCl in H2O), and solid electrolyte (Y2O3:ZrO2), we demonstrate that the oxidation pathway has a critical influence on the reversibility of the ionic-exchange process. Cyclic oxidation and reduction using O2/O3 or NaOCl lead to an important accumulation of structural defects, undermining the reversibility of thermal conductivity. In the case of wet oxidation, we demonstrate an inherent tendency of negative charge-transfer oxides toward amorphization and elucidate the origin of this effect. Conversely, the electrochemical injection of the O2– ions via a Y2O3:ZrO2 solid electrolyte reduces structural damage significantly, enhancing both reversibility and durability. This study underscores the importance of selecting appropriate topochemical oxygen exchange methods to maintain structural integrity and optimize functional performance in oxide-based tunable devices.
000145617 536__ $$9info:eu-repo/grantAgreement/ES/AEI/PRE2020-096467$$9info:eu-repo/grantAgreement/ES/DGA/E13-20R$$9info:eu-repo/grantAgreement/ES/MICINN-FEDER/PID2019-104150RB-I00$$9info:eu-repo/grantAgreement/ES/MICINN/PID2022-138883NB-I00$$9info:eu-repo/grantAgreement/EUR/MICINN/TED2021-130930B-I00
000145617 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttps://creativecommons.org/licenses/by/4.0/deed.es
000145617 590__ $$a7.0$$b2024
000145617 592__ $$a2.065$$b2024
000145617 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b102 / 461 = 0.221$$c2024$$dQ1$$eT1
000145617 593__ $$aChemical Engineering (miscellaneous)$$c2024$$dQ1
000145617 591__ $$aCHEMISTRY, PHYSICAL$$b45 / 185 = 0.243$$c2024$$dQ1$$eT1
000145617 593__ $$aMaterials Chemistry$$c2024$$dQ1
000145617 593__ $$aChemistry (miscellaneous)$$c2024$$dQ1
000145617 594__ $$a12.0$$b2024
000145617 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000145617 700__ $$aClaro, Marcel S.
000145617 700__ $$aCarbó-Argibay, Enrique
000145617 700__ $$0(orcid)0000-0002-6761-6171$$aMagén, César
000145617 700__ $$aRivadulla, Francisco
000145617 773__ $$g36, 20 (2024), 10249-10258$$pChem. mater.$$tChemistry of materials$$x0897-4756
000145617 8564_ $$s3691057$$uhttps://zaguan.unizar.es/record/145617/files/texto_completo.pdf$$yVersión publicada
000145617 8564_ $$s3212493$$uhttps://zaguan.unizar.es/record/145617/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000145617 909CO $$ooai:zaguan.unizar.es:145617$$particulos$$pdriver
000145617 951__ $$a2026-02-17-20:32:23
000145617 980__ $$aARTICLE