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Tailoring gadolinium-doped ceria-based solid oxide fuel cells to achieve 2 W cm−2 at 550 °C

Author

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  • Jin Goo Lee

    (Yonsei University, 134 Shinchon-dong, Seodaemun-gu)

  • Jeong Ho Park

    (Yonsei University, 134 Shinchon-dong, Seodaemun-gu)

  • Yong Gun Shul

    (Yonsei University, 134 Shinchon-dong, Seodaemun-gu)

Abstract

Low-temperature operation is necessary for next-generation solid oxide fuel cells due to the wide variety of their applications. However, significant increases in the fuel cell losses appear in the low-temperature solid oxide fuel cells, which reduce the cell performance. To overcome this problem, here we report Gd0.1Ce0.9O1.95-based low-temperature solid oxide fuel cells with nanocomposite anode functional layers, thin electrolytes and core/shell fibre-structured Ba0.5Sr0.5Co0.8Fe0.2O3−δ-Gd0.1Ce0.9O1.95 cathodes. In particular, the report describes the use of the advanced electrospinning and Pechini process in the preparation of the core/shell-fibre-structured cathodes. The fuel cells show a very high performance of 2 W cm−2 at 550 °C in hydrogen, and are stable for 300 h even under the high current density of 1 A cm−2. Hence, the results suggest that stable and high-performance solid oxide fuel cells at low temperatures can be achieved by modifying the microstructures of solid oxide fuel cell components.

Suggested Citation

  • Jin Goo Lee & Jeong Ho Park & Yong Gun Shul, 2014. "Tailoring gadolinium-doped ceria-based solid oxide fuel cells to achieve 2 W cm−2 at 550 °C," Nature Communications, Nature, vol. 5(1), pages 1-10, September.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5045
    DOI: 10.1038/ncomms5045
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    Cited by:

    1. Zarabi Golkhatmi, Sanaz & Asghar, Muhammad Imran & Lund, Peter D., 2022. "A review on solid oxide fuel cell durability: Latest progress, mechanisms, and study tools," Renewable and Sustainable Energy Reviews, Elsevier, vol. 161(C).
    2. Vinoth Kumar, R. & Khandale, A.P., 2022. "A review on recent progress and selection of cobalt-based cathode materials for low temperature-solid oxide fuel cells," Renewable and Sustainable Energy Reviews, Elsevier, vol. 156(C).

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