000088204 001__ 88204
000088204 005__ 20200716101437.0
000088204 0247_ $$2doi$$a10.1016/j.jeurceramsoc.2019.02.049
000088204 0248_ $$2sideral$$a111247
000088204 037__ $$aART-2019-111247
000088204 041__ $$aeng
000088204 100__ $$0(orcid)0000-0002-1629-6083$$aCebollero, J.A.$$uUniversidad de Zaragoza
000088204 245__ $$aOptimization of laser-patterned YSZ-LSM composite cathode-electrolyte interfaces for solid oxide fuel cells
000088204 260__ $$c2019
000088204 5060_ $$aAccess copy available to the general public$$fUnrestricted
000088204 5203_ $$aPatterned cathode/electrolyte interfaces formed by a hexagonal array of ~22 µm deep wells with 24 µm lattice parameter have been prepared by pulsed laser machining to enlarge the contact surface and, consequently, to reduce the cathode polarization of Solid Oxide Fuel Cells. These new interfaces have been tested in YSZ-LSM/YSZ/YSZ-LSM symmetrical cells, where the cathode is deposited by dip-coating. Appropriate ceramic suspensions have been formulated to penetrate into deep wells without presenting interfacial delamination after sintering. We analyse their applicability by comparing their rheology with the microstructure and electrochemical performance of the cells. The activation component of the polarization resistance is reduced by ~50% using ethanol-based suspensions with 20 wt% solids loading, although the gas diffusion component increases due to excessive densification. Alternative ceramic suspensions with 17.5 wt% solids loading provide optimum electrode gas diffusion but lower activation components, resulting in an overall decrease of ~20% in polarization resistance.
000088204 536__ $$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/MAT2015-67586-C3-2-R$$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/MAT2015-68078-R
000088204 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000088204 590__ $$a4.495$$b2019
000088204 592__ $$a1.164$$b2019
000088204 591__ $$aMATERIALS SCIENCE, CERAMICS$$b1 / 28 = 0.036$$c2019$$dQ1$$eT1
000088204 593__ $$aMaterials Chemistry$$c2019$$dQ1
000088204 593__ $$aCeramics and Composites$$c2019$$dQ1
000088204 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000088204 700__ $$0(orcid)0000-0002-7819-8956$$aLaguna-Bercero, M.A.$$uUniversidad de Zaragoza
000088204 700__ $$0(orcid)0000-0003-4708-5577$$aLahoz, R.$$uUniversidad de Zaragoza
000088204 700__ $$aSilva, J.
000088204 700__ $$aMoreno, R.
000088204 700__ $$0(orcid)0000-0002-0809-641X$$aLarrea, A.$$uUniversidad de Zaragoza
000088204 7102_ $$15009$$2535$$aUniversidad de Zaragoza$$bDpto. Ingeniería Eléctrica$$cÁrea Ingeniería Eléctrica
000088204 7102_ $$15001$$2065$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Cienc.Mater. Ingen.Metal.
000088204 773__ $$g39, 12 (2019), 3466-3474$$pJ. Eur. Ceram. Soc.$$tJournal of the European Ceramic Society$$x0955-2219
000088204 8564_ $$s688871$$uhttps://zaguan.unizar.es/record/88204/files/texto_completo.pdf$$yPostprint
000088204 8564_ $$s51859$$uhttps://zaguan.unizar.es/record/88204/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000088204 909CO $$ooai:zaguan.unizar.es:88204$$particulos$$pdriver
000088204 951__ $$a2020-07-16-08:56:31
000088204 980__ $$aARTICLE