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Operando analysis of a solid oxide fuel cell by environmental transmission electron microscopy

Author

Listed:
  • Q. Jeangros

    (École Polytechnique Fédérale de Lausanne (EPFL)
    Centre Suisse d’Electronique et de Microtechnique (CSEM))

  • M. Bugnet

    (Univ Lyon, CNRS, INSA-Lyon, UCBL, MATEIS)

  • T. Epicier

    (Univ Lyon, CNRS, INSA-Lyon, UCBL, MATEIS
    Univ Lyon, UCBL, IRCELYON)

  • C. Frantz

    (Group of Energy Materials (GEM), École Polytechnique Fédérale de Lausanne (EPFL))

  • S. Diethelm

    (Group of Energy Materials (GEM), École Polytechnique Fédérale de Lausanne (EPFL))

  • D. Montinaro

    (SolydEra S.p.A.)

  • E. Tyukalova

    (Laboratory for in situ & operando Electron Nanoscopy, School of Materials Science and Engineering, Nanyang Technological University (NTU))

  • Y. Pivak

    (DENSsolutions)

  • J. herle

    (Group of Energy Materials (GEM), École Polytechnique Fédérale de Lausanne (EPFL))

  • A. Hessler-Wyser

    (École Polytechnique Fédérale de Lausanne (EPFL))

  • M. Duchamp

    (Laboratory for in situ & operando Electron Nanoscopy, School of Materials Science and Engineering, Nanyang Technological University (NTU)
    MajuLab, International Joint Research Unit UMI 3654, CNRS, Université Côte d’Azur, Sorbonne Université, National University of Singapore, Nanyang Technological University)

Abstract

Correlating the microstructure of an energy conversion device to its performance is often a complex exercise, notably in solid oxide fuel cell research. Solid oxide fuel cells combine multiple materials and interfaces that evolve in time due to high operating temperatures and reactive atmospheres. We demonstrate here that operando environmental transmission electron microscopy can identify structure-property links in such devices. By contacting a cathode-electrolyte-anode cell to a heating and biasing microelectromechanical system in a single-chamber configuration, a direct correlation is found between the environmental conditions (oxygen and hydrogen partial pressures, temperature), the cell open circuit voltage, and the microstructural evolution of the fuel cell, down to the atomic scale. The results shed important insights into the impact of the anode oxidation state and its morphology on the cell electrical properties.

Suggested Citation

  • Q. Jeangros & M. Bugnet & T. Epicier & C. Frantz & S. Diethelm & D. Montinaro & E. Tyukalova & Y. Pivak & J. herle & A. Hessler-Wyser & M. Duchamp, 2023. "Operando analysis of a solid oxide fuel cell by environmental transmission electron microscopy," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-43683-4
    DOI: 10.1038/s41467-023-43683-4
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    References listed on IDEAS

    as
    1. Melanie Kuhn & Teko W. Napporn, 2010. "Single-Chamber Solid Oxide Fuel Cell Technology—From Its Origins to Today’s State of the Art," Energies, MDPI, vol. 3(1), pages 1-78, January.
    2. Sheng Dai & Yuan You & Shuyi Zhang & Wei Cai & Mingjie Xu & Lin Xie & Ruqian Wu & George W. Graham & Xiaoqing Pan, 2017. "In situ atomic-scale observation of oxygen-driven core-shell formation in Pt3Co nanoparticles," Nature Communications, Nature, vol. 8(1), pages 1-8, December.
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