Effect of Sr surface segregation of La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3 − δ electrode on its electrochemical performance in SOC

• Main Authors: Pan, Zehua, Liu, Qinglin, Zhang, Lan, Zhang, Xiongwen, Chan, Siew Hwa
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2019
• Subjects: Surface Segregation; Electrochemical Performance; DRNTU::Engineering::Mechanical engineering
• Online Access: https://hdl.handle.net/10356/80976; http://hdl.handle.net/10220/48160
• Institution: Nanyang Technological University

The degradation mechanism of La0.6Sr0.4Co0.2Fe0.8O3 − δ (LSCF) electrode is investigated by examining its electrochemical behavior under equilibrium potential at elevated temperature and corresponding surface compositional changes. Diluted nitric acid etching treatment is conducted to confirm the co...