Technical Specifications
- Product Name: Bismuth Oxide Nanopowder
- Chemical Formula: Bi₂O₃
- CAS Number: 1304-76-3
- Purity
- Grade: 99.9% (high purity)
- Impurities: ≤0.1% (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: Monoclinic alpha-phase or tetragonal beta-phase, depending on synthesis and conditions
- Morphology
- Shape: Near-spherical or irregular particles
- Surface Area: Moderate, with nanoscale size enhancing reactivity and functionality
- Physical and Chemical Properties
- Color: Yellow or light yellow powder
- Density: ~8.9 g/cm³
- Melting Point: ~817 °C
- Boiling Point: ~1,890 °C
- Electrical Properties: High ionic conductivity, especially in beta-phase
- Optical Properties: Bandgap energy of ~2.8 eV makes it suitable for photocatalytic and optical applications
- 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 or moisture
- Shelf Life: Stable under proper storage conditions
- Safety and Handling
- Hazards:
- Bismuth oxide dust may cause respiratory irritation if inhaled.
- Non-flammable but should be handled with care to prevent particle dispersion.
- Recommended Protective Measures:
- Use PPE (e.g., gloves, goggles, and dust masks).
- Ensure adequate ventilation and avoid creating airborne particles.
- Hazards:
Applications
- Electronics and Energy Storage
- Solid Electrolytes: Bi₂O₃ is widely used in solid oxide fuel cells (SOFCs) due to its high ionic conductivity.
- Battery Additives: Studied as a component in advanced energy storage systems, including lithium-ion and sodium-ion batteries.
- Photocatalysis
- Environmental Remediation: Used for photocatalytic degradation of organic pollutants and dyes in water and air.
- Solar Energy Conversion: Applied in photocatalytic systems for converting solar energy into chemical energy.
- Optoelectronics and Sensors
- Optical Devices: Utilized in optoelectronic components such as photodetectors and sensors due to its bandgap properties.
- Gas Sensors: Effective in detecting gases like NOx due to its sensitivity and stability.
- Ceramics and Glasses
- High-Performance Ceramics: Bi₂O₃ nanoparticles are used in advanced ceramics for improved thermal and electrical properties.
- Glass Additives: Enhances refractive index and optical clarity in specialty glasses.
- Catalysis
- Industrial Catalysis: Bi₂O₃ acts as a catalyst or catalyst support in chemical reactions such as oxidation and dehydration.
- Environmental Catalysis: Applied in catalytic converters and systems for reducing emissions.
- Nanocomposites
- Reinforcement Material: Improves mechanical, thermal, and electrical properties of composites in polymers, ceramics, and metals.
- Functional Coatings: Used in coatings for corrosion resistance and thermal stability.
- Biomedical Applications (Experimental)
- Medical Imaging: Studied as a contrast agent for X-ray and CT imaging due to its high density and biocompatibility.
- Antimicrobial Properties: Investigated for use in antimicrobial coatings and formulations.
- Research and Development
- Material Science: Extensively studied for its unique ionic, optical, and catalytic properties at the nanoscale.
- Prototype Testing: Ideal for developing advanced materials in energy, catalysis, and optoelectronics.
Key Features
- High purity (99.9%) and nanoscale size (~80 nm) provide enhanced functionality for energy, catalysis, and optical applications.
- Excellent ionic conductivity and photocatalytic properties make it ideal for fuel cells, sensors, and environmental remediation.
- Versatile material for advanced ceramics, biomedical research, and optoelectronic devices.
