Aluminum Oxide Nanopowder Water Dispersion (Al2O3,Gamma, 20wt%, 30nm)

Aluminum Oxide Nanopowder Water Dispersion (Al₂O₃, Gamma, 20 wt%, 30 nm) is a suspension of gamma-phase aluminum oxide nanoparticles in water, tailored for advanced applications requiring high surface area and reactivity. Here’s a detailed breakdown:

1. Composition:

• Aluminum Oxide (Al₂O₃):
  • A widely used ceramic material with excellent thermal, chemical, and mechanical properties.
• Gamma Phase (γ):
  • A metastable crystalline form of Al₂O₃ with:
    • High surface area and porosity.
    • Increased reactivity compared to the alpha phase.
    • Commonly used in catalytic, adsorption, and coating applications.
• Nanoparticles (30 nm):
  • Particles have an average diameter of 30 nanometers (nm).
  • Nano-scale size enhances surface area and reactivity.
• 20 wt%:
  • The dispersion contains 20% by weight of aluminum oxide nanoparticles; the remaining 80% is water.
• Water Dispersion:
  • A uniform suspension of nanoparticles in water for easy handling and application.

2. Key Properties:

• Gamma Phase Advantages:
  • High adsorptive capacity and catalytic activity.
  • Thermally stable at moderate temperatures.
• Nano Size (30 nm):
  • Large surface area-to-volume ratio, enhancing interaction with surrounding materials.
• Water-Based:
  • Eco-friendly and easy to integrate into aqueous systems.
• Thermal Stability:
  • Maintains gamma phase stability at moderate temperatures before transitioning to the alpha phase at higher temperatures (~900–1100°C).
• High Dispersion Stability:
  • Nanoparticles remain evenly suspended without agglomeration when handled properly.

3. Applications:

• Catalysis:
  • Used as a catalyst or catalyst support in reactions like reforming, hydrogenation, and pollutant removal.
• Adsorption:
  • Ideal for gas or liquid adsorption due to its porous structure.
  • Used in air purification, water treatment, and desiccation.
• Polishing:
  • An abrasive agent in precision polishing of optics, semiconductors, and metals.
• Coatings:
  • Forms protective or thermal barrier coatings for industrial and aerospace applications.
• Composites:
  • Reinforces mechanical and thermal properties in polymers, ceramics, and metal matrices.
• Electronics:
  • Functions as an insulating material in high-performance electronic devices.
• Thermal Management:
  • Used in thermal interface materials and heat-resistant applications.

4. Advantages:

• High Surface Area:
  • Enhances catalytic and adsorptive efficiency.
• Environmentally Friendly:
  • Water-based dispersion avoids the use of harmful organic solvents.
• Ease of Use:
  • Pre-dispersed for uniform application, reducing preparation time.
• Versatility:
  • Suitable for a wide range of industrial, scientific, and technological applications.

5. Handling and Storage:

• Handling:
  • Shake or stir the dispersion thoroughly before use to ensure uniform nanoparticle distribution.
  • Use appropriate protective equipment to avoid skin or eye contact.
• Storage:
  • Store in a cool, dry place to prevent freezing or excessive heat, which may destabilize the dispersion.
• Safety:
  • Non-toxic when handled properly but avoid inhaling any mist or aerosolized particles.