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 amounts of other oxides or non-metallic elements)
- Particle Size
- Average Size: ~80 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 known for its high surface area and enhanced reactivity
- Morphology
- Shape: Near-spherical or irregular particles, depending on synthesis process
- Surface Area: Moderate, with nanoscale size enhancing 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 insulator with superior dielectric properties
- Packaging and Storage
- Standard Packaging: Sealed in airtight, moisture-resistant containers to prevent contamination
- Storage Conditions: Store in a cool, dry environment; avoid moisture, acids, and bases
- Shelf Life: Stable under proper storage conditions
- Safety and Handling
- Hazards:
- Aluminum oxide dust may cause respiratory or eye irritation if inhaled or exposed.
- Non-combustible but may create airborne dust particles during handling.
- Recommended Protective Measures:
- Use PPE (e.g., gloves, goggles, dust masks).
- Ensure proper ventilation and minimize airborne particles during handling.
- Hazards:
Applications
- Catalysis
- Catalyst Support: Widely used as a support material for catalysts in chemical and petrochemical processes due to its high surface area and thermal stability.
- Industrial Catalysis: Ideal for hydrogenation, oxidation, and dehydrogenation reactions.
- Adsorption and Environmental Applications
- Pollutant Adsorption: Effective for capturing heavy metals, volatile organic compounds, and gases in environmental remediation systems.
- Water Purification: Acts as a filtration medium for removing contaminants from water and air.
- Energy Applications
- Battery Components: Enhances thermal stability and safety in lithium-ion battery separators.
- Fuel Cells: Serves as a component in solid oxide fuel cells (SOFCs) due to its thermal and chemical stability.
- Electronics and Dielectrics
- Insulating Layers: Applied in microelectronics for capacitors, transistors, and semiconductors due to its dielectric strength.
- Thermal Management: Used in thermal interface materials (TIMs) to improve heat dissipation.
- Coatings and Surface Treatments
- Protective Coatings: Enhances wear resistance, corrosion resistance, and thermal stability in machinery and tools.
- Optical Coatings: Used to improve durability and performance in optical components.
- Nanocomposites
- Reinforcement Material: Enhances the thermal, mechanical, and chemical properties of polymer, ceramic, and metal composites.
- Lightweight Materials: Suitable for aerospace and automotive components requiring high strength-to-weight ratios.
- Biomedical Applications
- Medical Coatings: Biocompatible properties make it ideal for coating medical implants.
- Drug Delivery Systems: Investigated for use as a carrier in targeted drug delivery systems due to its nanoscale properties.
- Polishing and Abrasives
- Precision Polishing: Used for polishing metals, semiconductors, and optical lenses due to its fine particle size and hardness.
- Abrasive Applications: Incorporated into grinding and cutting tools for high-precision operations.
- Research and Development
- Material Science: Extensively used in experimental studies to explore the properties and potential applications of gamma-phase aluminum oxide.
- Prototype Development: Ideal for testing in catalysis, coatings, and energy storage.
Key Features
- High purity (99+%) and gamma-phase structure ensure excellent catalytic and adsorption properties.
- Nanoscale particle size (~80 nm) provides a moderate surface area for enhanced performance.
- Versatile for applications in catalysis, energy storage, coatings, and advanced materials.
