Description

Key Properties & Advantages
LSC821??s performance is tailored to its unique particle characteristics and perovskite chemistry:

Controlled Particle Size (20?C45 ??m): Enables dense packing in thick films and structural components, reducing porosity and enhancing mechanical strength??critical for load-bearing or high-current applications.
Moderate Specific Surface Area (0.2?C0.6 m2/g): Balances active surface area with structural stability, preventing excessive sintering while maintaining sufficient sites for oxygen reduction reactions (ORR).
Low Moisture Content (<1 wt.%): Ensures storage stability and prevents agglomeration, facilitating uniform dispersion in slurries or pastes during processing. Perovskite Structural Stability: Retains its ABO? crystal structure under high-temperature oxidizing conditions (up to 850??C), ensuring long-term durability in SOFC operational environments. High Electronic Conductivity: Strontium doping (La?.?Sr?.?) enhances electron transport, making it suitable for current-collecting layers in cathode assemblies. Core Applications Solid Oxide Fuel Cells (SOFCs) LSC821 is engineered for thick-film and structural roles in SOFC systems: Thick-Film Cathodes: Ideal for applications requiring robust, low-porosity cathode layers (e.g., in large-scale SOFC stacks), where mechanical integrity and current distribution are prioritized. Cathode Current Collectors: Facilitates efficient electron transport across the cathode, reducing series resistance in SOFC assemblies. Composite Electrodes: Blends with finer LSC or LSCF powders to optimize porosity and conductivity in multi-layer cathode designs. Oxygen Separation & Catalysis Oxygen Membrane Supports: Serves as a structural support for thin-film oxygen separation membranes, providing mechanical strength while enabling oxygen transport. Catalytic Supports: Acts as a stable support for noble metal catalysts in high-temperature oxidation reactions (e.g., methane conversion), leveraging its chemical inertness and thermal stability. Technical Specifications Parameter Details Chemical Composition La?.?Sr?.?CoO???? (perovskite structure) Particle Size (D50) 20?C45 ??m (laser diffraction) Specific Surface Area 0.2?C0.6 m2/g (BET method) Moisture Content <1 wt.% (Karl Fischer titration) Crystal Structure Cubic perovskite Color Dark gray to black crystalline powder Quality Assurance Each batch of LSC821 undergoes rigorous testing to ensure reliability: X-ray diffraction (XRD) to confirm perovskite phase purity. Particle size analysis (laser diffraction) to verify 20?C45 ??m distribution. BET surface area measurement to validate 0.2?C0.6 m2/g range. Moisture content testing to ensure compliance with <1 wt.% specification. A certificate of analysis (CoA) is provided with each order, documenting batch-specific properties.