@article{Grassi_Macías_Basbus_Castiglioni_Gauthier_Serquis_Suescun_2021, title={Synthesis and Characterization of High Temperature Properties of YBa2Cu3O6+δ Superconductor as Potential Cathode for Intermediate Temperature Solid Oxide Fuel Cells}, volume={8}, url={https://www.zealpress.com/jms/index.php/jmstr/article/view/338}, DOI={10.31875/2410-4701.2021.08.10}, abstractNote={<p>YBa<sub>2</sub>Cu<sub>3</sub>O<sub>6+δ</sub> (YBC) oxygen deficient perovskite was synthesized by an auto-combustion method and was studied as potential cathode for Intermediate Temperature Solid Oxide Fuel Cell (IT-SOFC). Synchrotron X-ray thermodiffraction in air shows a phase transition from orthorhombic <em>Pmmm</em> to tetragonal <em>P4/mmm</em> space groups at ~ 425 °C. The chemical compatibility with Ce<sub>0.9</sub>Gd<sub>0.1</sub>O<sub>1.95</sub> (GDC) electrolyte was investigated in air where certain reactivity was observed above 800 °C. However, the main phase is Ba(Ce<sub>1-x</sub>Y<sub>x</sub>)O<sub>3</sub>, a good ionic conductor. The catalytic performance in air was obtained by electrochemical impedance spectroscopy (EIS) measurements on YBC/GDC/YBC symmetrical cells. The area specific resistance (ASR) values change from 13.66 to 0.14 Ω cm<sup>2</sup> between 500 and 800 °C, with activation energy (E<sub>a</sub>) of 0.41 eV. The results suggest potential applications of YBC as IT-SOFC cathode.</p>}, journal={Journal of Material Science and Technology Research}, author={Grassi, Joaquín and Macías, Mario A. and Basbus, Juan F. and Castiglioni, Jorge and Gauthier, Gilles H. and Serquis, Adriana C. and Suescun, Leopoldo}, year={2021}, month={Nov.}, pages={82–91} }