High activity and stability of cobalt-free SmBa0.5Sr0.5Fe2O5+δ perovskite oxide as cathode material for solid oxide fuel cells

Guo, Dong; Li, A. Y.; Lu, Chunling; Qiu, Dongchao; Niu, Bingbing; Wang, Biao

doi:10.1016/j.ceramint.2023.08.145

Cited by 8 publications

(1 citation statement)

References 73 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With this understanding comes the development of several mixed ionic and electronic conductors (MIEC) such as La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3 [14] and SmBaFe 2 O 5 (SBF) [15] . Serving as a cathode in SOFC, the MIEC greatly enhances the ORR efficiency by extending the reaction sites from the limitation of a cathode-electrolyte interface to the entire cathode.…”

Section: Introductionmentioning

confidence: 99%

Review on Fe-based double perovskite cathode materials for solid oxide fuel cells

Xie,

Cai,

Duan

et al. 2024

Energy Mater

View full text Add to dashboard Cite

As a clean and efficient energy conversion device, solid oxide fuel cells have been garnering attention due to their environmentally friendly and fuel adaptability. Consequently, they have become one of the current research directions of new energy. The cathode, as the electrochemical reaction site of an oxidation atmosphere in solid oxide fuel cells, plays a key role in determining the output performance. In recent years, the development of double perovskite cathode materials with mixed ionic and electronic conductors has made significant progress in intermediate-temperature (600-800 °C) fuel cells. These materials have the potential to deliver higher power densities and improved stability, making them promising candidates for future fuel cell applications. The Fe-based double perovskite structure cathode material has gained extensive attention due to its adjustable crystal structure and performance, as it has A(A’) or B(B’) positions in its AA’BB’O6 structure. This material has several advantages, such as high oxygen catalytic activity, low thermal expansion coefficient, and compatibility with the thermal expansion of the electrolyte. An increasing number of researchers have been exploring the performance reaction mechanism of double perovskite by modifying and adjusting its material microstructure, crystal structure, and electronic structure. In this paper, the research progress of LnBaFe2O5 and Sr2Fe2-xMoxO6 double perovskite cathode materials is reviewed to highlight the effects of various modification methods developed on electrochemical performance of these materials. Furthermore, the potential future research directions of double perovskite cathode materials are prospected.

show abstract

Section: Introductionmentioning

confidence: 99%