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Shaping triple-conducting semiconductor BaCo0.4Fe0.4Zr0.1Y0.1O3-δ into an electrolyte for low-temperature solid oxide fuel cells

Author

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  • Chen Xia

    (Hubei University
    China University of Geosciences
    KTH Royal Institute of Technology)

  • Youquan Mi

    (Hubei University)

  • Baoyuan Wang

    (Hubei University)

  • Bin Lin

    (University of Electronic Science and Technology of China)

  • Gang Chen

    (Northeastern University)

  • Bin Zhu

    (Hubei University
    China University of Geosciences
    Loughborough University)

Abstract

Interest in low-temperature operation of solid oxide fuel cells is growing. Recent advances in perovskite phases have resulted in an efficient H+/O2-/e- triple-conducting electrode BaCo0.4Fe0.4Zr0.1Y0.1O3-δ for low-temperature fuel cells. Here, we further develop BaCo0.4Fe0.4Zr0.1Y0.1O3-δ for electrolyte applications by taking advantage of its high ionic conduction while suppressing its electronic conduction through constructing a BaCo0.4Fe0.4Zr0.1Y0.1O3-δ-ZnO p-n heterostructure. With this approach, it has been demonstrated that BaCo0.4Fe0.4Zr0.1Y0.1O3-δ can be applied in a fuel cell with good electrolyte functionality, achieving attractive ionic conductivity and cell performance. Further investigation confirms the hybrid H+/O2- conducting capability of BaCo0.4Fe0.4Zr0.1Y0.1O3-δ-ZnO. An energy band alignment mechanism based on a p-n heterojunction is proposed to explain the suppression of electronic conductivity and promotion of ionic conductivity in the heterostructure. Our findings demonstrate that BaCo0.4Fe0.4Zr0.1Y0.1O3-δ is not only a good electrode but also a highly promising electrolyte. The approach reveals insight for developing advanced low-temperature solid oxide fuel cell electrolytes.

Suggested Citation

  • Chen Xia & Youquan Mi & Baoyuan Wang & Bin Lin & Gang Chen & Bin Zhu, 2019. "Shaping triple-conducting semiconductor BaCo0.4Fe0.4Zr0.1Y0.1O3-δ into an electrolyte for low-temperature solid oxide fuel cells," Nature Communications, Nature, vol. 10(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-09532-z
    DOI: 10.1038/s41467-019-09532-z
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    Cited by:

    1. Rauf, Sajid & Zhu, Bin & Shah, M.A.K. Yousaf & Xia, Chen & Tayyab, Zuhra & Ali, Nasir & Yang, Changping & Mushtaq, Naveed & Asghar, Muhammad Imran & Akram, Fazli & Lund, Peter D., 2021. "Tailoring triple charge conduction in BaCo0.2Fe0.1Ce0.2Tm0.1Zr0.3Y0.1O3−δ semiconductor electrolyte for boosting solid oxide fuel cell performance," Renewable Energy, Elsevier, vol. 172(C), pages 336-349.
    2. Mohsen Fallah Vostakola & Bahman Amini Horri, 2021. "Progress in Material Development for Low-Temperature Solid Oxide Fuel Cells: A Review," Energies, MDPI, vol. 14(5), pages 1-53, February.
    3. Hu, Enyi & Wang, Faze & Yousaf, Muhammad & Wang, Jun & Lund, Peter & Wang, Jinping & Zhu, Bin, 2022. "Synergistic effect of sodium content for tuning Sm2O3 as a stable electrolyte in proton ceramic fuel cells," Renewable Energy, Elsevier, vol. 193(C), pages 608-616.
    4. Shah, M.A.K. Yousaf & Lu, Yuzheng & Mushtaq, Naveed & Rauf, Sajid & Yousaf, Muhammad & Asghar, Muhammad Imran & Lund, Peter D. & Zhu, Bin, 2022. "Demonstrating the potential of iron-doped strontium titanate electrolyte with high-performance for low temperature ceramic fuel cells," Renewable Energy, Elsevier, vol. 196(C), pages 901-911.
    5. 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).
    6. Kei Saito & Masatomo Yashima, 2023. "High proton conductivity within the ‘Norby gap’ by stabilizing a perovskite with disordered intrinsic oxygen vacancies," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    7. Shah, M.A.K. Yousaf & Lu, Yuzheng & Mushtaq, Naveed & Yousaf, Muhammad & Akbar, Nabeela & Xia, Chen & Yun, Sining & Zhu, Bin, 2023. "Semiconductor-membrane fuel cell (SMFC) for renewable energy technology," Renewable and Sustainable Energy Reviews, Elsevier, vol. 185(C).

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