LSGM (La0.8Sr0.2Ga0.8Mg0.2O3-δ) Powder as Oxygen-Conducting Electrolyte for Intermediate Temperature SOFC/SOEC, 50 g/bottle, CITSOFECOCELSGM
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In both Solid Oxide Fuel Cells (SOFC) and Solid Oxide Electrolysis Cells (SOEC), LSGM (Lanthanum Strontium Gallium Magnesium Gallate) is considered the "ultimate" oxide-ion conductor. Formulated as La(1-x)SrxGa(1-y)MgyO(3-x), it is a perovskite electrolyte designed specifically to outperform YSZ and GDC in the Intermediate Temperature (IT) range (600 °C–800 °C).
LSGM is favored because it possesses higher ionic conductivity than YSZ across all temperatures, without the electronic leakage issues that plague GDC in reducing environments. (1) Superior Conductivity: At 650 °C, LSGM has roughly double the conductivity of SSZ and nearly ten times that of YSZ. (2) Pure Ionic Conductor: Unlike Ceria-based electrolytes (GDC/SDC), LSGM maintains a high electrolytic domain. This means it remains a pure ionic conductor even under low oxygen partial pressures (the fuel side), allowing for a high Open Circuit Voltage (OCV) near the theoretical limit (~1.1 V). (3) Wide Operating Range: It is effective from 500 °C to 800 °C, making it the most versatile electrolyte for high-efficiency IT-SOFCs.
| Part Number |
CITSOFECOCELSGM (C-ITSOFEC-OCE-LSGM) |
| Purity |
≥99.5% |
| Chemical Formula |
La0.8Sr0.2Ga0.8Mg0.2O3-δ |
| PSD (D50) |
0.3-0.7 um |
| Surface Area |
4-8 m2/g |
| Package Grade |
50 g/bottle (other grades, such as 100 g, and 500 g or larger can be supplied upon request) |
References:
- S. Kim, et al., Revolutionizing hydrogen production with LSGM-based solid oxide electrolysis cells: An innovative approach by sonic spray, Electrochimica Acta, 2023, 463, 142751.
- K. Y. Kim, et al., Characterization of the electrode and electrolyte interfaces of LSGM-based SOFCs, Silid State Ionics, 2006, 177, 2155-2158.