Abstract:
The synthesis of electrolytes based on nanopowders of Zr0.84Y0.16O2-d (YSZ), Zr0.81Sc0.19O2-d (ScSZ), and
Ce0.73Gd0.27O2-d (GDC) was carried out using laser evaporation. The resulting powders had average particle sizes of
15.5 mm (YSZ), 11.0 mm (ScSZ), and 0.02 mm (GDC), as determined by BET analysis. The specific surface areas of the
powders were 65.3 m2
/g for YSZ, 97.4 m2
/g for ScSZ, and 34.2 m2
/g for GDC. Additionally, cathode material powders of
La0.7Sr0.3MnO3 (LSM) and lanthanum strontium cobalt ferrites (LSCF-2020, LSCF-4020, and LSCF-4080) were synthesized using polymer-salt pyrolysis and solution combustion synthesis methods. The LSM powder exhibited a rhombohedral phase (space group R-3c) with a secondary phase content of ~9 wt.%. The LSCF powders demonstrated a singlephase perovskite structure with a rhombohedral symmetry (space group R-3c). Nickel oxide (NiO) powder for the anode
was obtained using the wire explosion method, producing predominantly spherical particles. The phase composition of
the synthesized materials was determined using X-ray diffraction (XRD), confirming a single-phase structure for all
powders except LSM, which contained ~9 wt.% of a secondary phase. The sintering behavior was studied to determine
optimal processing conditions, revealing that the electrolytes reached high densification levels at 1300 C, while the
electrodes required sintering at 1100e1150 C. The co-sintering approach was developed for fabricating solid oxide fuel
cells (SOFCs), allowing for controlled morphology of polymer-ceramic films. Electrochemical performance tests
demonstrated the long-term stability and functional viability of the fabricated solid oxide fuel cells components.
