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- W2913376545 abstract "Supported electrolyte membrane type SOFCs were prepared by co-fire process using Zr(Sc)O2, Ce(Gd)O2, and (La,Sr)(Ga,Mg)O3 as electrolyte. Electrolyte films were prepared upon supports, such as NiO-cermet, by wet green film processes, such as electrophoretic deposition, doctor blade, slurry dip coat, and then co-fired. It was concluded that co-firing of Ce(Gd)O2 electrolyte cell would not be feasible because of its fragility on sintering. It was also concluded that (La,Sr)(Ga,Mg)O3 electrolyte cell is not suitable for co-fire process due to a mutual reaction between support and electrolyte, because it requires high temperature (1500°C) sintering. NiO-cermet supported Zr(Sc)O2 cells were prepared successfully. The optimum power density was 1.8 (900°C), 1.2 (800°C), 0.4 (700°C), 0.1 (600°C) W/cm2. Improvement of electrode will be able to make the Ni-Zr(Sc)O2/Zr(Sc)O2/Pt- Zr(Sc)O2 cell operation below 700°C feasible. However, improvement of cathode by using (La,Sr)CoO3 was unsuccessful due to the formation of an insulating layer with Zr(Sc)O2. Insertion of Ce(Gd)O2 protective layer (2 μ m) between Zr(Sc)O2 and (La,Sr)CoO3 cathode was examined but the results were worse than the case of Pt- Zr(Sc)O2 cathode. It may be due to the formation of a poor conducting layer between, Ce(Gd)O2, (La,Sr)CoO3, and Zr(Sc)O2." @default.
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- W2913376545 date "2001-01-01" @default.
- W2913376545 modified "2023-10-18" @default.
- W2913376545 title "Supported Electrolyte Membrane SOFCs for Reduced Temperature Using Zr(Sc)O2, Ce(Gd)O2, and (La,Sr)(Ga,Mg)O3" @default.
- W2913376545 doi "https://doi.org/10.1149/200116.1042pv" @default.
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