NiO/8YSZ (57-65 wt%) Electrode Slurry for SOFC/SOEC, 100 g/bottle, CSOFECESNiO8YSZ
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In the production of Solid Oxide Fuel Cells (SOFC) and Electrolysis Cells (SOEC), a NiO/8YSZ electrode slurry is the liquid suspension used to create the hydrogen electrode (anode in SOFC, cathode in SOEC). This slurry is a complex mixture of active ceramic/metal oxide powders, organic vehicles, and chemical additives designed to create a specifically engineered porous microstructure. The slurry has multi-components:
The rheology (flow behavior) of the NiO/8YSZ slurry must be matched to the manufacturing method: (1) Screen Printing (Functional Layers): Requires a thixotropic paste. The slurry should have a high viscosity (10-50 Pa s) that drops under the pressure of the squeegee, allowing it to pass through the mesh, and then "re-sets" instantly on the substrate to prevent bleeding. (2) Tape Casting (Anode Supports): Requires a lower viscosity (1-5 Pa s) with a high binder-to-plasticizer ratio. This ensures the resulting 0.5 mm thick "green" support is flexible enough to be handled without cracking. (2) Spin Coating/ Dip Coating: Requires a very dilute, low-viscosity suspension ($0.1 Pa s) to ensure a sub-micron uniform coating on electrolytes or support tubes.
| Part Number |
CSOFECESNiO8YSZ (C-SOFEC-ES-NiO8YSZ) |
| Active Material | |
| Solid-State Content |
(1) 57 wt% for Anode Functional Layer (AFL) (2) 65 wt% for Anode Support Layer (ASL) |
| Package Grade |
100 g/bottle (other grades, such as 500 g, and 1000 g or larger can be supplied upon request) |
References:
- A. Hauch, et al., Ni/YSZ electrodes structures optimized for increased electrolysis performance and durability, Solid State Ionics, 2016, 293, 27-36.
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H. P. Dasari, Electrochemical characterization of Ni–yttria stabilized zirconia electrode for hydrogen production in solid oxide electrolysis cells, J. Power Sources, 2013, 240, 721-728.