107455 20211008135433.0 doi 10.1039/d0dt02987d sideral 121253 ART-2020-121253 eng Robles-Fernandez, A. (orcid)0000-0002-2483-3264 Suitability of strontium and cobalt-free perovskite cathodes with La9.67Si5AlO26apatite electrolyte for intermediate temperature solid oxide fuel cells 2020 Aluminium-doped lanthanum silicate (LSAO) apatite-type compounds have been considered as promising candidates for substituting yttria-stabilized zirconia (YSZ) as electrolytes for intermediate temperature solid oxide fuel cells (IT-SOFC). Nevertheless, not many materials have been reported to work as cathodes in a LSAO apatite-based cell. In the present work, eight different strontium andcobalt-free compounds with a perovskite-type structure and the general composition LaM1-xNxO3-d (where M = Fe, Cr, Mn; N = Cu, Ni; and x = 0.2, 0.3) have been tested. This study includes the synthesis and structural characterization of the compounds, as wellas thermomechanical and chemical compatibility tests between them. Functional characterization of the individual components has been performed by electrochemical impedance spectroscopy (EIS). Apatite/perovskite symmetrical cells were used to measure area-specific resistance (ASR) of the half cellin an intermediate temperature range (500-850 °C) both with and without DC bias. According to its electrochemical behaviour, LaFe0.8Cu0.2O3-d is the most promising material for IT-SOFC among the compositions tested since its ASR is similar to that of thetraditional (LaxSr1-x)MnO3 (LSM) cathode. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/MCIU-AEI-FEDER/RTI2018-098944-J-I00 info:eu-repo/grantAgreement/ES/MCIU/BES-2016-078508 info:eu-repo/grantAgreement/ES/MINECO-FEDER/MAT2015-68078-R info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 4.39 2020 CHEMISTRY, INORGANIC & NUCLEAR 8 / 45 = 0.178 2020 Q1 T1 0.98 2020 Inorganic Chemistry 2020 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Orera, A. Universidad de Zaragoza (orcid)0000-0001-8751-0983 Merino, R.I. Universidad de Zaragoza (orcid)0000-0003-0747-405X Slater, P.R. 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 49, 40 (2020), 14280-14289 Dalton Trans. Dalton Transactions 1477-9226 1805873 http://zaguan.unizar.es/record/107455/files/texto_completo.pdf Postprint 1231218 http://zaguan.unizar.es/record/107455/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:107455 articulos driver 2021-10-08-11:34:31 ARTICLE