BZCYYb Powder as Proton-Conducting Electrolyte for Low Temperature SOFC/SOEC, 50 g/bottle, CLTSOFECPCEBZCYYb
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BZCYYb (BaZr0.1Ce0.7Y0.1Yb0.1O(3-x) is widely regarded as the current gold standard for Protonic Ceramic Electrochemical Cells (PCECs). This material succeeds by balancing the high proton conductivity of cerates with the chemical stability of zirconates, further enhanced by the co-doping of Yttrium (Y) and Ytterbium (Yb).
BZCYYb is a "best of both worlds" electrolyte. (1) High Conductivity: The Cerium (Ce) content ensures high proton conductivity at lower temperatures compared to zirconates. (2) Chemical Stability: The Zirconium (Zr) and Ytterbium (Yb) content provides the lattice with resistance against CO2 and H2O (steam) degradation, which is the Achilles' heel of pure cerates. (3) Triple Conductivity: In certain conditions, it can conduct protons (H+), oxygen ions (O^{2-}), and holes (h'), making it a "triple-conducting" electrolyte that is highly efficient for reversible operation.
| Part Number |
CLTSOFECPCEBZCYYb (C-LTSOFEC-PCE-BZCYYb) |
| Purity |
≥99.5% |
| Chemical Formula |
(1) BZCYYb1711 (BaZr0.1Ce0.7Y0.1Yb0.1O3−δ) (2) BZCYYb4411 (BaZr0.4Ce0.4Y0.1Yb0.1O3−δ) |
| Powder Size |
(1) Nanosize: ~500 nm (2) Micro-Size: ~2-5 um |
| Addition |
1 wt% NiO will be beneficial to sintering |
| XRD |
|
| Package Grade |
50 g/bottle (other grades, such as 100 g, and 500 g or larger can be supplied upon request) |
References:
- N. T. Q. Nguyen, et al., Preparation and evaluation of BaZr0.1Ce0.7Y0.1Yb0.1O3−δ (BZCYYb) electrolyte and BZCYYb-based solid oxide fuel cells, J. Power Sources, 2013, 231, 213-218.
- M. Choi, et al., Exceptionally high performance of protonic ceramic fuel cells with stoichiometric electrolytes, Energy Environ. Sci., 2021,14, 6476-6483.