Technical Specifications
- Product Name: Cerium Oxide Nanopowder
- Chemical Formula: CeO₂ (Cerium Dioxide)
- CAS Number: 1306-38-3
- Purity
- Grade: 99.99% (ultra-high purity)
- Impurities: ≤0.01% (trace levels of other oxides or non-metallic elements)
- Particle Size
- Average Size: ~10 nm
- Particle Size Distribution: Uniformly distributed, verified via SEM (Scanning Electron Microscopy) or TEM (Transmission Electron Microscopy)
- Morphology
- Shape: Near-spherical particles
- Surface Area: High due to nanoscale size, enhancing reactivity and adsorption properties
- Crystal Structure
- Phase: Fluorite cubic structure
- Physical and Chemical Properties
- Color: Pale yellow or white powder
- Density: ~7.22 g/cm³
- Melting Point: ~2,400 °C
- Thermal Stability: Excellent stability at high temperatures
- Optical Properties: High UV absorption and light-scattering capabilities
- 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
- Safety and Handling
- Hazards:
- Cerium oxide dust may cause respiratory and eye irritation if inhaled or exposed.
- Non-flammable but fine powders may create airborne particles during handling.
- Recommended Protective Measures:
- Use PPE (e.g., gloves, goggles, and dust masks).
- Ensure adequate ventilation during handling.
- Hazards:
Applications
- Catalysis
- Environmental Catalysis: Used in catalytic converters for vehicle exhaust systems to reduce emissions of NOx, CO, and hydrocarbons.
- Chemical Catalysis: Acts as an oxygen buffer in oxidation and reduction reactions, widely applied in petrochemical processes.
- Polishing Applications
- Precision Polishing: Cerium oxide is extensively used in glass and silicon wafer polishing due to its mild abrasive properties and chemical reactivity.
- Optical Components: Ideal for polishing lenses, mirrors, and precision optical devices.
- Energy Applications
- Fuel Cells: Used in solid oxide fuel cells (SOFCs) as an electrolyte or catalyst material due to its ionic conductivity.
- Hydrogen Storage: Investigated for its potential in hydrogen storage systems.
- Environmental Applications
- Pollution Control: Effective in capturing and degrading pollutants in water and air purification systems.
- Adsorption Applications: High surface area makes it suitable for adsorbing heavy metals and organic pollutants.
- Biomedical Applications
- Antioxidant Properties: Studied for its free-radical scavenging ability, making it a potential therapeutic agent in nanomedicine.
- Drug Delivery: Explored as a carrier for targeted drug delivery systems.
- Coatings and Surface Treatments
- Protective Coatings: Enhances wear resistance and corrosion resistance in coatings for industrial tools and machinery.
- UV Protection: Used in sunscreen formulations and coatings for its UV-blocking properties.
- Optoelectronics
- Optical Materials: Used in the development of photonic devices and as a UV-blocking agent in various optical applications.
- Sensors: Applied in gas sensors due to its sensitivity to oxygen and other gases.
- Nanocomposites
- Reinforcement Material: Improves thermal, mechanical, and optical properties of composites in polymers, ceramics, and metals.
- Lightweight Materials: Suitable for aerospace and automotive applications requiring high performance and low weight.
- Research and Development
- Material Science: Extensively studied for its unique redox, optical, and catalytic properties at the nanoscale.
- Prototype Development: Used in experimental setups for advanced energy, environmental, and biomedical applications.
Key Features
- High purity (99.99%) and nanoscale size (~10 nm) provide superior reactivity and functionality in catalysis, polishing, and energy applications.
- Excellent redox properties make it ideal for environmental and industrial catalysis.
- Versatile material for applications in optics, coatings, energy storage, and biomedical research.
