Description

Key Properties & Advantages
GDC10’s performance is defined by its doped ceria structure and optimized physical properties:

Controlled Particle Size (0.3–0.6 μm): Balances sinterability with microstructure uniformity, enabling dense film formation at moderate temperatures (1000–1200°C) while maintaining sufficient porosity in composite electrodes.
High Specific Surface Area (8–12 m²/g): Provides abundant active sites for oxygen adsorption/desorption, enhancing catalytic activity and ion transport in IT-SOFCs and gas separation systems.
Low Moisture Content (<1 wt.%): Prevents agglomeration during storage and processing, ensuring uniform dispersion in slurries, pastes, or composite materials (e.g., with LSCF cathodes). Exceptional Oxygen Ion Conductivity: 10 mol% gadolinium doping creates oxygen vacancies, enabling high ionic conductivity (10⁻¹–10⁰ S/cm) at 500–700°C—outperforming YSZ in intermediate-temperature ranges. Chemical Stability: Resists degradation in both oxidizing and reducing atmospheres, with compatibility with common electrode materials (LSCF, Ni-based anodes) and minimal reactivity with fuel cell gases (H₂, CH₄). Thermal Compatibility: Matches the thermal expansion coefficients of IT-SOFC components, reducing interfacial stress and improving long-term device stability. Core Applications Intermediate-Temperature Solid Oxide Fuel Cells (IT-SOFCs) GDC10 is a cornerstone material for IT-SOFCs, where lower operating temperatures drive efficiency and durability: IT-SOFC Electrolytes: Functions as a high-conductivity electrolyte in 500–700°C systems, enabling reduced thermal stress and longer stack lifetimes compared to high-temperature SOFCs. Composite Cathodes: Blends with LSCF (lanthanum strontium cobalt iron oxide) to form functional gradient cathodes, optimizing ion conduction and reducing polarization resistance at the electrode-electrolyte interface. Electrolyte Interlayers: Used as a buffer layer between YSZ and LSCF in hybrid SOFC designs, preventing unwanted phase reactions and enhancing overall conductivity. Catalysis & Environmental Remediation Oxidation Catalysis: Acts as a catalyst or support for reactions like CO oxidation, NOₓ reduction, and volatile organic compound (VOC) degradation, leveraging its high surface area and redox-active Ce³⁺/Ce⁴⁺ sites. Oxygen Separation Membranes: Enables efficient oxygen transport in dense membranes for industrial gas purification (e.g., O₂ enrichment, syngas production) at moderate temperatures. Sensor Technologies Oxygen Sensors: Used in gas sensors for monitoring oxygen levels in automotive exhaust, industrial furnaces, and environmental monitoring systems, thanks to its sensitivity to oxygen partial pressure. Technical Specifications Parameter Details The chemical composition is Gd₀.₁Ce₀.₉O₂₋δ (10 mol% gadolinium-doped ceria); the particle size (D50) is 0.3–0.6 μm; the specific surface area is 8–12 m²/g; the moisture content is <1 wt.%; the crystal structure is fluorite; the color is pale yellow to off-white crystalline powder. Quality Assurance Each batch of GDC10 undergoes rigorous testing to ensure reliability: X-ray diffraction (XRD) to confirm fluorite phase purity and uniform gadolinium doping. Particle size analysis (laser diffraction) to verify 0.3–0.6 μm distribution. BET surface area measurement to validate 8–12 m²/g range. Moisture content testing to ensure compliance with <1 wt.% specification. Ionic conductivity testing (optional) to confirm performance at 500–700°C. A certificate of analysis (CoA) is provided with each order, documenting batch-specific properties. Packaging & Storage Storage: Store in a dry, cool environment (≤25°C) away from strong reducing agents or acidic gases. Shelf life is ≥12 months under proper conditions. Handling: Use in a well-ventilated area; avoid inhalation of dust.