Cerium Oxide Nanopowder ( CeO2, 99.9+%, 10-30nm)

Technical Specifications

1. Product Name: Cerium Oxide Nanopowder
   • Chemical Formula: CeO₂ (Cerium Dioxide)
   • CAS Number: 1306-38-3
2. Purity
   • Grade: 99.9+% (high purity)
   • Impurities: ≤0.1% (trace levels of other oxides or non-metallic elements)
3. Particle Size
   • Range: 10–30 nm
   • Particle Size Distribution: Uniformly distributed, verified via SEM (Scanning Electron Microscopy) or TEM (Transmission Electron Microscopy)
4. Morphology
   • Shape: Near-spherical particles with uniform surface features
   • Surface Area: High due to nanoscale size, enhancing reactivity
5. Crystal Structure
   • Phase: Fluorite cubic structure, providing high thermal and mechanical stability
6. Physical and Chemical Properties
   • Color: Pale yellow or white powder
   • Density: ~7.22 g/cm³
   • Melting Point: ~2,400 °C
   • Thermal Stability: Retains structural integrity at elevated temperatures
   • Optical Properties: Bandgap energy of ~2.8 eV, suitable for UV absorption and photocatalysis
7. Packaging and Storage
   • Standard Packaging: Sealed in airtight, moisture-resistant containers to prevent contamination and agglomeration
   • Storage Conditions: Store in a cool, dry environment; avoid prolonged exposure to air and moisture
   • Shelf Life: Stable under proper storage conditions
8. Safety and Handling
   • Hazards:
     • Fine cerium oxide powder may cause respiratory or eye irritation if inhaled or exposed.
     • Non-flammable but requires careful handling to prevent particle dispersion.
   • Recommended Protective Measures:
     • Use PPE (e.g., gloves, goggles, and dust masks).
     • Ensure proper ventilation during handling to avoid airborne particles.

Applications

1. Catalysis
   • Environmental Catalysis: Utilized in catalytic converters to reduce emissions of NOx, CO, and hydrocarbons from vehicle exhausts.
   • Chemical Catalysis: Acts as an oxygen buffer in redox reactions, widely used in petrochemical and industrial processes.
2. Polishing Applications
   • Glass and Silicon Polishing: Cerium oxide is extensively used for precision polishing in optical lenses, silicon wafers, and mirrors due to its mild abrasive and chemical reactivity.
   • High-Performance Polishing: Ideal for removing fine scratches and achieving high surface quality.
3. Energy Applications
   • Solid Oxide Fuel Cells (SOFCs): Acts as an electrolyte or cathode material due to its ionic conductivity and thermal stability.
   • Hydrogen Storage: Investigated for its potential role in hydrogen production and storage systems.
4. Environmental Applications
   • Pollutant Degradation: Effective in removing organic pollutants and heavy metals from air and water systems through photocatalysis.
   • Air Purification: Applied in filtration systems for capturing and degrading harmful gases and particulates.
5. Biomedical Applications
   • Antioxidant Properties: Exhibits free-radical scavenging ability, making it a promising agent for nanomedicine and therapeutic applications.
   • Drug Delivery Systems: Explored as a carrier for controlled drug release and targeted therapies.
6. Coatings and Surface Treatments
   • Protective Coatings: Enhances wear and corrosion resistance in industrial tools and machinery.
   • UV Protection: Used in sunscreen formulations and coatings for its UV-blocking properties.
7. Optoelectronics
   • Photonic Devices: Suitable for use in optoelectronic components such as photodetectors and sensors.
   • Gas Sensors: Effective in detecting gases like oxygen, nitrogen oxides, and carbon monoxide.
8. Nanocomposites
   • Reinforcement Material: Enhances thermal, mechanical, and optical properties of polymer, ceramic, and metal composites.
   • Aerospace and Automotive Applications: Used in lightweight components with high-performance requirements.
9. Research and Development
   • Material Science: Extensively studied for its unique redox, optical, and catalytic properties.
   • Prototype Development: Applied in testing advanced technologies for energy storage, catalysis, and environmental applications.

Key Features

• High purity (99.9+%) and nanoscale size (10–30 nm) ensure excellent catalytic, optical, and mechanical properties.
• Superior reactivity and stability make it ideal for use in energy systems, catalysis, and environmental remediation.
• Versatile material for diverse applications, including biomedical, coatings, and polishing.