Description
Key Properties & Advantages
LSGM’s performance stems from its optimized perovskite structure and precise elemental doping:
Controlled Particle Size (0.4–0.7 μm): Enables dense sintering at moderate temperatures (1300–1450°C), forming gas-impermeable electrolyte layers with uniform microstructure—critical for minimizing fuel/oxidant crossover in IT-SOFCs.
Moderate Specific Surface Area (6–10 m²/g): Balances sinterability with surface reactivity, promoting strong adhesion to electrode layers (e.g., LSCF cathodes, Ni-based anodes) while maintaining ionic transport efficiency.
Low Moisture Content (<1 wt.%): Prevents agglomeration during storage and processing, ensuring uniform dispersion in slurries, tapes, or green bodies—essential for consistent conductivity in electrolyte films.
High Oxygen Ion Conductivity: Mg²⁺ doping on Ga³⁺ sites creates oxygen vacancies, enabling ionic conductivity (10⁻¹–10⁰ S/cm at 700°C)—outperforming YSZ in the 600–800°C range, reducing IT-SOFC operating temperatures and extending device lifetime.
Perovskite Structural Stability: Retains its ABO₃ crystal structure under oxidizing and reducing atmospheres, with minimal phase decomposition at operating temperatures—ensuring long-term durability in IT-SOFC stacks.
Thermal Compatibility: Matches the thermal expansion coefficients of common IT-SOFC electrodes, reducing interfacial stress and improving stack stability during thermal cycling.
Core Applications
Intermediate-Temperature Solid Oxide Fuel Cells (IT-SOFCs)
LSGM is a premier electrolyte material for IT-SOFCs, where lower operating temperatures drive efficiency and cost reduction:
IT-SOFC Electrolytes: Functions as the primary ion-conducting layer in 600–800°C systems, enabling higher power density than YSZ at these temperatures while reducing thermal stress on stack components.
Thin-Film Electrolytes: Ideal for thin-film IT-SOFC designs (e.g., anode-supported or cathode-supported configurations), where its high conductivity minimizes electrolyte resistance even in sub-micron thicknesses.
Hydrocarbon-Fueled SOFCs: Exhibits better resistance to carbon deposition than zirconia-based electrolytes when paired with appropriate anodes, supporting direct use of methane or natural gas as fuels.
Oxygen Separation Membranes
High-Temperature Oxygen Separation: Used in dense membranes for industrial gas purification (e.g., oxygen enrichment from air), leveraging its high ionic conductivity and stability in oxidizing environments.
Solid-State Electrolyzers
Water/CO₂ Splitting: Enables efficient electrochemical splitting of water (H₂O → H₂ + ½O₂) or CO₂ (CO₂ → CO + ½O₂) in solid-state electrolyzers, supported by its high ionic conductivity at 600–800°C.
The technical specifications are as follows: Chemical Composition La₀.₉Sr₀.₁Ga₀.₈Mg₀.₂O₃₋δ (perovskite structure), Particle Size (D50) 0.4–0.7 μm (laser diffraction), Specific Surface Area 6–10 m²/g (BET method), Moisture Content <1 wt.% (Karl Fischer titration), Crystal Structure Orthorhombic/perovskite, Color Pale yellow to off-white crystalline powder.
Quality Assurance
Each batch of LSGM undergoes rigorous testing to ensure reliability:
X-ray diffraction (XRD) to confirm perovskite phase purity and crystal structure.
Particle size analysis (laser diffraction) to verify 0.4–0.7 μm distribution.
BET surface area measurement to validate 6–10 m²/g range.
Moisture content testing to ensure compliance with <1 wt.% specification.
Ionic conductivity testing (optional) to confirm performance at 600–800°C.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
