YSZ (Yttria-Stabilized Zirconia) Powder as Electrode Precursor and Electrolyte for SOFC/SOEC, 100 or 500/bottle, CSOFECEPEYSZ
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In both Solid Oxide Fuel Cells (SOFC) and Solid Oxide Electrolysis Cells (SOEC), YSZ (Yttria-Stabilized Zirconia) is the fundamental electrolyte material. It serves as the "oxygen ion highway," allowing O^{2-} ions to pass between electrodes while acting as a total insulator for electrons.
The dual roles of YSZ in SOFC/SOEC applications. (1) As an electrolyte, the powder must be processed into a gas-tight membrane. YSZ works via "vacancy hopping." Y^{3+} ions create empty spaces in the crystal lattice that O^{2-} ions "jump" into. Moreover, high-purity YSZ prevents internal short-circuits. (2) YSZ powder is mixed with NiO (for the anode) or LSM/LSCF (for the cathode) to create a composite.By mixing YSZ into the electrode, the reaction zone (Triple Phase Boundary) is pushed deeper into the electrode volume rather than being stuck at the electrolyte interface. Moreover, YSZ keeps the electrodes from peeling off (delaminating) because it matches the expansion of the electrolyte layer.
| Part Number |
CSOFECEPEYSZ (C-SOEFC-EPE-YSZ) |
| CAS |
114168-16-0 |
| Chemical Formula |
(Y2O3)x(ZrO2)1-x (x= 0.03, 0.05, and 0.08)  |
| Molecular Mass |
~349.03 g/mol |
| Appearance |
White powder |
| BET Surface Area |
Micro-Size: 2-4 m2/g Nano-Size: 10-15 m2/g |
| XRD |
eg: 8YSZ  |
| YSZ Powder Types |
(1) Micro-Size 3YSZ (1-2um) (2) Micro-Size 5YSZ (1-2 um)
(3) Micro-Size 8YSZ (1-2um) (4) Nano-Size 3YSZ (200-500 nm)
(5) Nano-Size 5YSZ (200-500 nm)
(6) Nano-Size 8YSZ (200-500 nm)
|
| Package Grade |
100 g/bottle (other grades, such as 500 g, 1000 g, or higher can be supplied upon request) |
References:
- J. Schefold, et al., Electronic Conduction of Yttria-Stabilized Zirconia Electrolyte in Solid Oxide Cells Operated in High Temperature Water Electrolysis, J. Electrochem. Soc., 2009, 156, B897
- S. K. Kim, et al., Understanding the phase stability of yttria stabilized zirconia electrolyte under solid oxide electrolysis cell operation conditions, J. Mater. Chem. A, 2024,12, 8319-8330.