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Sn-doped cobalt containing perovskite as the air electrode for highly active and durable reversible protonic ceramic electrochemical cells

https://doi.org/10.26599/JAC.2024.9220836

Fu, Min; Hu, Wenjing; Tong, Hua; Ling, Xin; Tan, Linggui; Chen, Fanglin; Tao, Zetian (January 2024, Journal of Advanced Ceramics)

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Energy storage and hydrogen production by proton conducting solid oxide electrolysis cells with a novel heterogeneous design

https://doi.org/10.1016/j.enconman.2020.113044

Lei, Libin; Zhang, Jihao; Guan, Rongfeng; Liu, Jianping; Chen, Fanglin; Tao, Zetian (August 2020, Energy Conversion and Management)

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A Novel Self‐Assembled Cobalt‐Free Perovskite Composite Cathode with Triple‐Conduction for Intermediate Proton‐Conducting Solid Oxide Fuel Cells

https://doi.org/10.1002/adfm.202209695

Tong, Hua; Fu, Min; Yang, Yang; Chen, Fanglin; Tao, Zetian (September 2022, Advanced Functional Materials)

Abstract A traditional composite cathode for proton‐conducting solid oxide fuel cells (H‐SOFCs) is typically obtained by mixing cathode materials and proton conducting electrolyte of BaCe_0.7Y_0.2Zr_0.1O_3–δ(BZCY), providing chemical and thermal compatibility with the electrolyte. Here, a series of triple‐conducing and cobalt‐free iron‐based perovskites as cathodes for H‐SOFCs is reported. Specifically, BaCe_xFe_1–_xO_3–δ(x = 0.36, 0.43, and 0.50) shows various contents of two single phase perovskites with an in situ heterojunction structure as well as triple conductivity by tailoring the Ce/Fe ratios. The cell performance with the optimized BaCe_0.36Fe_0.64O_3–δ(BCF36) cathode composition reaches 1056 mW cm⁻²at 700 °C. Moreover, a record cell performance of 1525 mW cm⁻²at 700 °C is obtained by modifying the BCF36 cathode microstructure through a spraying method, demonstrating high promise with Co‐free cathodes for H‐SOFCs.
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