A La0.8Sr0.2MnO3/La0.6Sr0.4Co0.2Fe0.8O3−δ core–shell structured cathode by a rapid sintering process for solid oxide fuel cells
MetadataShow full item record
Funding and Sponsorship
A La0.8Sr0.2MnO3 (LSM)/La0.6Sr0.4Co0.2Fe0.8O3−δ (LSCF) core–shell structured composite cathode of solid oxide fuel cells (SOFCs) has been fabricated by wet infiltration followed by a rapid sintering (RS) process. The RS is carried out by placing LSCF infiltrated LSM electrodes directly into a preheated furnace at 800 °C for 10 min and cooling down very quickly. The heating and cooling step takes about 20 s, substantially shorter than 10 h in the case of conventional sintering (CS) process. The results indicate the formation of a continuous and almost non-porous LSCF thin film on the LSM scaffold, forming a LSCF/LSM core–shell structure. Such RS-formed infiltrated LSCF–LSM cathodes show an electrode polarization resistance of 2.1 Ω cm2 at 700 °C, substantially smaller than 88.2 Ω cm2 of pristine LSM electrode. The core–shell structured LSCF–LSM electrodes also show good operating stability at 700 °C and 600 °C over 24–40 h.
Showing items related by title, author, creator and subject.
In situ formation of a 3D core-shell and triple-conducting oxygen reduction reaction electrode for proton-conducting SOFCsZhang, Z.; Wang, J.; Chen, Y.; Tan, S.; Shao, Zongping; Chen, D. (2018)BaZr x Ce y Y 1-x-y O 3-Î´ are recognized proton-conducting electrolyte materials for proton-conducting solid oxide fuel cells (H + -SOFCs) below 650 Â°C. Here Co cations are incorporated into the BaZr 0.4 Ce 0.4 Y 0.2 O ...
Wang, D.; Wang, Y.; Zou, Y.; Lu, Chunsheng; Ma, Zengsheng (2018)© 2018 Springer-Verlag GmbH Austria, part of Springer Nature High-capacity active electrodes, such as Si anodes in Li-ion batteries, undergo a significant volume deformation of up to (Formula presented.) 400% during ...
3D core–shell architecture from infiltration and beneficial reactive sintering as highly efficient and thermally stable oxygen reduction electrodeChen, D.; Yang, G.; Ciucci, F.; Tade, Moses; Shao, Zongping (2014)Solid oxide fuel cells (SOFCs) as alternatives for energy conversion have the capacity to overcome low energy conversion efficiency, highly detrimental emissions from traditional fuel utilization and the limited reserves ...