Technical Specifications
- Product Name: Aluminum Oxide Nanopowder
- Chemical Formula: Al₂O₃ (Aluminum Oxide)
- CAS Number: 1344-28-1
- Purity
- Grade: 99+% (high purity)
- Impurities: ≤1% (trace oxides or non-metallic elements)
- Particle Size
- Average Size: ~20 nm
- Particle Size Distribution: Verified using SEM (Scanning Electron Microscopy) or TEM (Transmission Electron Microscopy)
- Crystal Structure
- Phase: Gamma-phase, a metastable form of Al₂O₃ characterized by high surface area and enhanced reactivity
- Morphology
- Shape: Near-spherical particles
- Surface Area: High due to nanoscale size, promoting adsorption and catalytic efficiency
- Physical and Chemical Properties
- Color: White powder
- Density: ~3.6 g/cm³ (lower than alpha-phase due to gamma-phase structure)
- Melting Point: ~2,072 °C (gamma-phase transitions to alpha-phase at elevated temperatures above ~900 °C)
- Thermal Stability: Stable up to ~900 °C in gamma-phase
- Electrical Properties: Excellent insulating properties
- Packaging and Storage
- Standard Packaging: Sealed in airtight, moisture-resistant containers to prevent contamination and agglomeration
- Storage Conditions: Store in a cool, dry environment; protect from moisture and air exposure
- Shelf Life: Stable under proper storage conditions
- Safety and Handling
- Hazards:
- Aluminum oxide dust may irritate the respiratory system and eyes if inhaled or exposed.
- Non-combustible but may generate airborne dust particles during handling.
- Recommended Protective Measures:
- Use PPE (e.g., gloves, goggles, dust masks).
- Ensure adequate ventilation to minimize airborne particles.
- Hazards:
Applications
- Catalysis
- Catalyst Support: Gamma-phase Al₂O₃ serves as an excellent support for catalysts in petrochemical, pharmaceutical, and environmental applications due to its high surface area.
- Industrial Catalysis: Used in chemical reactions like hydrocracking, hydrogenation, and oxidation.
- Adsorption and Filtration
- Pollutant Adsorption: Effective in capturing heavy metals, organic compounds, and gaseous pollutants for environmental remediation.
- Water Treatment: Acts as a filtration medium for removing contaminants from water and air.
- Energy Applications
- Battery Components: Used as a coating material for lithium-ion battery separators, enhancing thermal stability and safety.
- Fuel Cells: Serves as a component in solid oxide fuel cells (SOFCs) for thermal and chemical stability.
- Electronics and Dielectrics
- Insulating Layers: Utilized in thin-film capacitors and microelectronics due to its superior dielectric properties.
- Thermal Management: Applied in thermal interface materials (TIMs) to improve heat dissipation in electronic devices.
- Coatings and Surface Treatments
- Protective Coatings: Enhances wear resistance, corrosion resistance, and thermal stability of tools and machinery.
- Antireflective Coatings: Used in optical components to improve performance and durability.
- Biomedical Applications
- Drug Delivery: Explored as a carrier for targeted drug delivery systems due to its biocompatibility and nanoscale properties.
- Medical Coatings: Applied on implants to improve biocompatibility and integration with biological tissues.
- Nanocomposites
- Reinforcement Material: Enhances mechanical, thermal, and chemical properties in composite materials like polymers, ceramics, and metals.
- Lightweight Materials: Suitable for aerospace and automotive industries where high strength-to-weight ratios are required.
- Polishing and Abrasives
- Precision Polishing: Used in polishing metals, semiconductors, and optical components due to its fine particle size and hardness.
- Abrasive Tools: Incorporated into fine abrasives for high-precision applications.
- Research and Development
- Material Science: Used in experimental studies to explore nanoscale behavior and properties of aluminum oxide.
- Prototype Development: Ideal for testing in advanced materials for catalysis, coatings, and energy storage.
Key Features
- High purity (99+%) and gamma-phase structure ensure excellent catalytic and adsorption properties.
- Nanoscale particle size (~20 nm) provides a high surface area and enhances reactivity.
- Versatile applications in catalysis, energy storage, electronics, coatings, and biomedical research.
