Activation and failure mechanism of La0.6Sr0.4Co0.2Fe0.8O3-δ air electrode in solid oxide electrolyzer cells under high-current electrolysis

• Main Authors: Pan, Zehua, Liu, Qinglin, Ni, Meng, Lyu, Renzhi, Li, Ping, Chan, Siew Hwa
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2020
• Subjects: Engineering::Electrical and electronic engineering; La0.6Sr0.4Co0.2Fe0.8O3-δ air electrodes; Co Diffusion
• Online Access: https://hdl.handle.net/10356/141024
• Institution: Nanyang Technological University

This work investigates the activation and delamination of La0.6Sr0.4Co0.2Fe0.8O3−δ (LSCF) air electrode of solid oxide electrolyzer cells sintered on yttria-stabilized zirconia (YSZ) electrolyte. After polarization with an electrolysis current of 1 A cm−2 for 24 h at 800 °C, the LSCF electrode delam...