Cerium Oxide Nanopowder ( CeO2, 99.9+%, 50nm)

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
   • Average Size: ~50 nm
   • Particle Size Distribution: Verified using SEM (Scanning Electron Microscopy) or TEM (Transmission Electron Microscopy)
4. Morphology
   • Shape: Near-spherical particles with uniform distribution
   • Surface Area: Moderate due to nanoscale dimensions, enhancing reactivity
5. Crystal Structure
   • Phase: Fluorite cubic structure, providing high thermal and chemical 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 photocatalysis and UV absorption
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:
     • Cerium oxide dust may cause respiratory or eye irritation if inhaled or exposed.
     • Non-flammable but requires careful handling to prevent airborne dispersion.
   • Recommended Protective Measures:
     • Use PPE (e.g., gloves, goggles, and dust masks).
     • Ensure adequate ventilation and avoid creating airborne particles during handling.

Applications

1. Catalysis
   • Environmental Catalysis: Widely used in catalytic converters to reduce emissions of NOx, CO, and hydrocarbons from vehicles.
   • Chemical Catalysis: Functions as an oxygen buffer, enabling efficient redox reactions in industrial processes.
2. Polishing Applications
   • Precision Polishing: Cerium oxide is used for glass, silicon wafers, and optical lenses due to its mild abrasive and chemical reactivity.
   • High-Quality Surface Finish: Ideal for achieving superior surface smoothness in critical components.
3. Energy Applications
   • Fuel Cells: Applied as an electrolyte or cathode material in solid oxide fuel cells (SOFCs) for enhanced ionic conductivity.
   • Hydrogen Storage: Explored for its potential in hydrogen production and storage systems.
4. Environmental Applications
   • Pollutant Remediation: Effective in degrading organic pollutants and adsorbing heavy metals in air and water purification systems.
   • Air Filtration: Suitable for use in air filters to trap and degrade harmful gases and particulates.
5. Biomedical Applications
   • Antioxidant Properties: Exhibits free-radical scavenging ability, making it a promising agent in nanomedicine for therapeutic applications.
   • Drug Delivery: Investigated for controlled and targeted drug release systems.
6. Coatings and Surface Treatments
   • Protective Coatings: Enhances wear and corrosion resistance in industrial tools and machinery.
   • UV Protection: Applied in sunscreen formulations and optical coatings for its UV-blocking properties.
7. Optoelectronics
   • Photonic Devices: Used in the development of optical and electronic components.
   • Gas Sensors: Effective in detecting gases such as NOx, CO, and oxygen due to its sensitivity and stability.
8. Nanocomposites
   • Reinforcement Additive: Improves the thermal, mechanical, and optical properties of composites in polymers, ceramics, and metals.
   • Lightweight Components: Ideal for use in aerospace and automotive industries where weight reduction is critical.
9. Research and Development
   • Material Science: Widely used in experimental studies to explore its catalytic, optical, and electronic properties.
   • Prototype Development: Ideal for testing applications in energy storage, environmental remediation, and biomedical research.

Key Features

• High purity (99.9+%) and nanoscale size (~50 nm) provide excellent catalytic, optical, and mechanical properties.
• Superior redox properties and thermal stability make it ideal for energy, environmental, and industrial applications.
• Versatile material for diverse uses, including catalysis, coatings, optoelectronics, and biomedical research.