Review on Ruddlesden–Popper perovskites as cathode for solid oxide fuel cells

By Peipei Ding, Wenlu Li, Hanwen Zhao, Congcong Wu, Li Zhao, Binghai Dong, Shimin Wang. 2021

153 citations recorded by the source corpus.

Solid oxide fuel cells (SOFC) are highly efficient energy conversion device, but its high operating temperature (800∼1000 °C) restricts industrial commercialization. Reducing the operating temperature to <800 °C could broaden the selection of materials, improve the reliability of the system, and lower the operating cost. However, traditional perovskite cathode could not both attain the high catalytic activity towards the oxygen reduction reaction and good durability at medium and low temperature range. In contrast to the conventional perovskites, Ruddlesden–Popper perovskites exhibit fast oxygen surface exchange kinetic and excellent stability at medium and low temperatures, and excel both in oxide-conducting fuel cells (O-SOFC) and proton-conducting fuel cells (H-SOFC). In this paper, we try to relate its prominent performance with the crystal structure, main physical properties, and transport mechanism of oxygen ions and protons. We also summarize the current strategy in improving its application in O-SOFC and H-SOFC. Finally, we discuss the challenges and outlook for the future development of RP perovskites in SOFC.

Subfields: Electrical and Electronic Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/7c0184b83be3ca76ee3069f4dc25cf0fce647dc9

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Citations in the corpus

• Direct ammonia solid-oxide fuel cells: A review of progress and prospects (2021, background): “A 2 BO 4 structures with rare earth metals and transition metals show promising electrochemical performance [42].”