Structural and electrical characterization of the novel SrCo1-xTixO3–δ (x = 0.05, 0.1 and 0.15) perovskites: Evaluation as cathode materials in solid oxide fuel cells

V. Cascos, M.T. Fernández-Díaz and J.A. Alonso

Renewable Energy, 2019, vol. 133, issue C, 205-215

Abstract: The SrCoO3-δ perovskite system is able to incorporate Ti at the Co positions, stabilizing a tetragonal perovskite superstructure that combines excellent electronic and ionic conductivity. These materials outperform as cathodes in solid-oxide fuel cells (SOFC). An in situ neutron powder diffraction (NPD) study of SrCo0.95Ti0.05O3−δ between 200 and 800 °C (working conditions of a SOFC) allowed us to analyze the crystal structure and correlate it with the performance. The effect of Ti4+ doping on the thermal, electrical, and electrochemical properties of SrCo1-xTixO3−δ (x = 0.05, 0.1 and 0.15) perovskite oxides is discussed.

Keywords: Cathode; IT-SOFC; SrCoO3; Perovskite; Neutron diffraction (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:133:y:2019:i:c:p:205-215

DOI: 10.1016/j.renene.2018.09.073

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