Surface Modification of NiFe Anode-Support for Thin-Film Solid-Oxide Fuel Cell

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  • KHAN Sovann
    International Institute for Carbon-Neutral Energy Research, (WPI-I<sup>2</sup>CNER), Kyushu University
  • SONG Jun Tae
    International Institute for Carbon-Neutral Energy Research, (WPI-I<sup>2</sup>CNER), Kyushu University
  • WATANABE Motonori
    International Institute for Carbon-Neutral Energy Research, (WPI-I<sup>2</sup>CNER), Kyushu University
  • ISHIHARA Tatsumi
    International Institute for Carbon-Neutral Energy Research, (WPI-I<sup>2</sup>CNER), Kyushu University Department of Applied Chemistry Faculty of Engineering, Kyushu University Department of Automotive Science Graduate School of Integrated Frontier Sciences, Kyushu University

抄録

<p>A dense NiO-Fe2O3 (NiFe) pellet has been developed as a potential anode-support for thin-film solid oxide fuel cells (SOFCs). However, preparation of dense NiFe is very challenging. Hole-formed NiFe pellets or porous NiFe pellets are frequently formed, which cannot be used as a support (substrate) for thin-film SOFCs. Therefore, this hole-formed NiFe support is simply wasted. In this report, we attempt to re-qualify this NiFe support to be a valuable substrate, which can be used for fabricating thin-film SOFCs. By deposition of smaller NiFe particles to cover the hole-formed NiFe support, the surface of this NiFe pellet is modified. Large holes on the surface disappear. The newly formed NiFe support can be used for fabricating a single cell with La0.9Sr0.1Ga0.8Mg0.2O3−δ as thin-film electrolyte operated at intermediate temperature. Maximum power density generated from this cell is 0.45, 0.86 and 1.28 W cm−2 at 873, 923 and 973 K, respectively.</p>

収録刊行物

  • Electrochemistry

    Electrochemistry 92 (3), 037005-037005, 2024-03-15

    公益社団法人　電気化学会

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