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| Home > Publications database > Nature and functionality of La0.58Sr0.4Co0.2Fe0.8O3-delta/Gd0.2Ce0.8O2-delta/Y0.16Zr0.84O2-delta interfaces in SOFCs > print |
| Home > Publications database > Nature and functionality of La0.58Sr0.4Co0.2Fe0.8O3-delta/Gd0.2Ce0.8O2-delta/Y0.16Zr0.84O2-delta interfaces in SOFCs > print |
| 001 | 850926 | ||
| 005 | 20240711085703.0 | ||
| 024 | 7 | _ | |a 10.1149/2.0031811jes |2 doi |
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| 024 | 7 | _ | |a 0096-4743 |2 ISSN |
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| 037 | _ | _ | |a FZJ-2018-04657 |
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| 100 | 1 | _ | |a Szász, Julian |0 P:(DE-HGF)0 |b 0 |
| 245 | _ | _ | |a Nature and functionality of La0.58Sr0.4Co0.2Fe0.8O3-delta/Gd0.2Ce0.8O2-delta/Y0.16Zr0.84O2-delta interfaces in SOFCs |
| 260 | _ | _ | |a Pennington, NJ |c 2018 |b Electrochemical Soc. |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a Interdiffusion phenomena and secondary phase formation at the interface La0.58Sr0.4Co0.2Fe0.8O3-δ (LSCF) / Gd0.2Ce0.8O2-δ (GDC) / Y0.16Zr0.84O2-δ (YSZ) are correlated to linear and non-linear losses in symmetrical and full SOFC cells. FIB/SEM (focussed ion beam / scanning electron microscopy) tomography is applied for determining the local distribution of the primary phases LSCF, GDC, and YSZ and elemental analysis via STEM/EDXS (scanning transmission electron microscopy / energy dispersive X-ray spectroscopy) provides information on the secondary phase SrZrO3 (SZO) and the interdiffusion between GDC and YSZ (ID). This reveals the effect of GDC co-sintering temperature (varied from 1100°C to 1400°C), alongside the sintering of LSCF at 1080°C, on these multi-layered microstructures. Electrochemical impedance spectra on symmetrical cells show that the polarization resistance (ASRcat) of the cathode/electrolyte interface is pronouncedly affected by three orders of magnitude, changing the overall power density of anode supported SOFC single cells at 0.8V by as much as a factor of 20. In conclusion, the chemical composition of the ID has a tremendous impact on the electrochemical efficiency of the investigated LSCF/GDC/YSZ interface, and processing parameters of anode supported cells with LSCF cathode have to be carefully chosen for individual SOFC cell concepts. |
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| 536 | _ | _ | |a SOFC - Solid Oxide Fuel Cell (SOFC-20140602) |0 G:(DE-Juel1)SOFC-20140602 |c SOFC-20140602 |f SOFC |x 1 |
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| 700 | 1 | _ | |a Störmer, Heike |0 P:(DE-HGF)0 |b 3 |
| 700 | 1 | _ | |a Gerthsen, Dagmar |0 P:(DE-HGF)0 |b 4 |
| 700 | 1 | _ | |a Menzler, Norbert H. |0 P:(DE-Juel1)129636 |b 5 |e Corresponding author |
| 700 | 1 | _ | |a Ivers-Tiffée, Ellen |0 0000-0002-8183-2460 |b 6 |
| 773 | _ | _ | |a 10.1149/2.0031811jes |g Vol. 165, no. 10, p. F898 - F906 |0 PERI:(DE-600)2002179-3 |n 10 |p F898 - F906 |t Journal of the Electrochemical Society |v 165 |y 2018 |x 1945-7111 |
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