000165037 001__ 165037
000165037 005__ 20251204150239.0
000165037 0247_ $$2doi$$a10.1016/j.jeurceramsoc.2025.118022
000165037 0248_ $$2sideral$$a146471
000165037 037__ $$aART-2025-146471
000165037 041__ $$aeng
000165037 100__ $$0(orcid)0000-0003-3480-398X$$aOliete, P.B.$$uUniversidad de Zaragoza
000165037 245__ $$aBinary and ternary eutectic composites of the CaO – ZrO2 – MgO system for porous ceramic supports
000165037 260__ $$c2025
000165037 5060_ $$aAccess copy available to the general public$$fUnrestricted
000165037 5203_ $$aWe recently reported on the use of c-ZrO2-MgO eutectic composites produced by directional solidification as supports for CO2-selective membranes based on molten carbonates. Here, we explore other compositions, particularly within the CaO – ZrO2 – MgO system, with the ultimate goal of improving the membrane permeation by either increasing the support’s ionic conductivity or reducing its tortuosity. The three eutectic-like composites studied display MgO fibres embedded in single-phase or two-phase matrices. The composite with 8.5CaO/48.5ZrO2/43MgO mol% composition consists of MgO fibres in an oxide-ion conducting c-ZrO2 matrix containing both Ca and Mg. A binary CaZrO3 – MgO eutectic-like composite forms at ∼33CaO/35ZrO2/32MgO mol% with MgO fibres in a Ca-poor, Mg-doped CaZrO3 matrix displaying mixed oxide-ion and hole conductivity. For 22CaO/45ZrO2/33MgO mol% composition, a ternary eutectic forms with MgO fibres at the interfaces of CaZrO3 and c-ZrO2 phases. Acid etching tests were conducted to verify the feasibility of fabricating a porous support.
000165037 536__ $$9info:eu-repo/grantAgreement/ES/DGA/T02-23R$$9info:eu-repo/grantAgreement/ES/MCINN/FEDER/PID2021-124863OB-I00$$9info:eu-repo/grantAgreement/ES/MICIU/CEX2023-001286-S
000165037 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
000165037 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000165037 700__ $$0(orcid)0000-0003-0747-405X$$aMerino, R.I.
000165037 700__ $$0(orcid)0000-0003-2242-6822$$aPeña, J.I.$$uUniversidad de Zaragoza
000165037 700__ $$0(orcid)0000-0002-5793-2058$$aSanjuán, M.L.
000165037 7102_ $$15001$$2065$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Cienc.Mater. Ingen.Metal.
000165037 773__ $$g46, 5 (2025), 118022 [12 pp.]$$pJ. Eur. Ceram. Soc.$$tJournal of the European Ceramic Society$$x0955-2219
000165037 8564_ $$s13566646$$uhttps://zaguan.unizar.es/record/165037/files/texto_completo.pdf$$yVersión publicada
000165037 8564_ $$s2715732$$uhttps://zaguan.unizar.es/record/165037/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000165037 909CO $$ooai:zaguan.unizar.es:165037$$particulos$$pdriver
000165037 951__ $$a2025-12-04-14:39:46
000165037 980__ $$aARTICLE