Surface Modification of NiFe Anode-Support for Thin-Film Solid-Oxide Fuel Cell (Supporting Information)
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posted on 2024-03-01, 00:42 authored by Sovann KHAN, Jun Tae SONG, Motonori WATANABE, Tatsumi ISHIHARA<div>A dense NiO-Fe<sub>2</sub>O<sub>3</sub> (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 La<sub>0.9</sub>Sr<sub>0.1</sub>Ga<sub>0.8</sub>Mg<sub>0.2</sub>O<sub>3−δ</sub> 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<sup>−2</sup> at 873, 923 and 973 K, respectively.</div>
Funding
Common problem-solving industry-academia-government collaborative research and development project for the dramatic expansion of fuel cell use
New Energy and Industrial Technology Development Organization
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