Description

Key Properties & Advantages
LSM’s performance is defined by its tailored perovskite structure and high-temperature stability:

Controlled Particle Size (0.3–0.6 μm): Enables uniform packing in cathode layers, balancing porosity for gas diffusion with sufficient contact area for oxygen reduction reactions (ORR)—critical for maintaining performance in high-temperature cycles.
Optimized Surface Properties: Designed to provide adequate active sites for ORR while resisting excessive sintering at 800–1000°C, ensuring long-term stability in SOFC operation.
Low Moisture Content (<1 wt.%): Prevents agglomeration during storage and processing, ensuring uniform dispersion in slurries or composite electrodes (e.g., with YSZ electrolytes). Exceptional Thermal Stability: Retains its perovskite structure and electrical conductivity at elevated temperatures, outperforming many cobalt-based oxides in high-heat environments. Chemical Compatibility with YSZ: Forms stable interfaces with yttria-stabilized zirconia (YSZ), the most common SOFC electrolyte, minimizing interfacial resistance and phase reactions. High Electronic Conductivity: Strontium doping enhances p-type conductivity, facilitating efficient electron transport in cathode assemblies. Core Applications High-Temperature Solid Oxide Fuel Cells (SOFCs) LSM is the industry standard for high-temperature SOFC cathodes, where durability is key: Cathode Layers: Delivers reliable ORR activity at 800–1000°C, making it ideal for traditional SOFC systems in power generation and industrial heat applications. Composite Cathodes: Blends with YSZ (typically 1:1) to optimize ion conduction (via YSZ) and electron transport (via LSM), reducing polarization resistance in multi-layer electrode designs. Long-Term Operation: Resists degradation in extended cycles, supporting SOFC stacks with lifespans exceeding 10,000 hours—critical for commercial energy systems. High-Temperature Sensors & Catalysis Oxygen Sensors: Functions as a sensing electrode in zirconia-based sensors for monitoring O₂ levels in industrial furnaces and exhaust streams. High-Temperature Catalysis: Catalyzes reactions like methane reforming and NOₓ reduction, leveraging its stability at extreme temperatures. Technical Specifications The chemical composition of this substance is (La₀.₇₅Sr₀.₂₅)₀.₉₅MnO₃±δ, which has a perovskite structure. Its particle size (D50) is determined to be 0.3–0.6 μm by laser diffraction, and the moisture content is measured to be less than 1 wt.% via Karl Fischer titration. The crystal structure is cubic/tetragonal perovskite, and it appears as a black to dark brown crystalline powder. Quality Assurance Each batch of LSM undergoes rigorous testing to ensure reliability: X-ray diffraction (XRD) to confirm perovskite phase purity. Particle size analysis (laser diffraction) to verify 0.3–0.6 μm distribution. Moisture content testing to ensure compliance with <1 wt.% specification. Optional high-temperature conductivity testing for application-specific validation. A certificate of analysis (CoA) is provided with each order, documenting batch-specific properties. Packaging & Storage Packaging: Available in 50g, 100g, 500g, and bulk quantities, sealed in airtight containers to prevent moisture absorption. Storage: Store in a dry, cool environment (≤25°C) away from reducing agents. Shelf life is ≥12 months under proper conditions. Handling: Use in a well-ventilated area; avoid inhalation of dust. Why Choose LSM? LSM stands out for high-temperature energy applications, offering: Unmatched Stability at 800–1000°C: Reliable performance in harsh SOFC environments. Seamless Compatibility with YSZ: Integrates easily with standard SOFC electrolytes. Proven Scalability: Trusted in industrial SOFC production for consistent results. Contact our technical team for bulk pricing, custom testing, or application-specific data. For research and industrial use only.