Below is a comprehensive summary and organization of data related to nano tungsten oxide (WO₃) from various aspects:
- Basic Information of Nano Tungsten Oxide
Composition of Nano Tungsten Oxide
Nano tungsten oxide is composed of tungsten (W) and oxygen (O) elements, forming the tungsten oxide compound.
Morphology of Nano Tungsten Oxide
- Form: Nano powder
- Particle Size: Typically ranges from 1 to 100 nanometers
Forms of Nano Tungsten Oxide
Nano tungsten oxide usually exists in crystalline structures and can be categorized based on the number of oxygen atoms:
- Yellow Tungsten (WO₃)
- Blue Tungsten (WO₂.₉)
- Purple Tungsten (WO₂.₇₂)
- Cesium-doped Tungsten Oxide (Cs₀.₃₃WO₃)
Product Parameters of Nano Tungsten Oxide
| Type | Particle Size Range (nm) | Purity (%) | Color | Special Applications |
| Yellow Tungsten (WO₃) | 50-80 | 99.9 | Light Yellow | – |
| Blue Tungsten (WO₂.₉) | 80-100 | 99.9 | Blue | – |
| Purple Tungsten (WO₂.₇₂) | 80-100 | 99.9 | Purple | – |
| Cs-doped Tungsten Oxide (Cs₀.₃₃WO₃) | 80-100 | 99.9 | Blue | Insulation Material |
- Characteristics of Nano Tungsten Oxide
High Specific Surface Area
Nano tungsten oxide has a large specific surface area, which increases its chemical reactivity and catalytic efficiency.
Good Optical Properties
Includes visible light absorption and infrared light reflection, making it suitable for manufacturing optoelectronic devices.
High-Temperature Stability
Maintains stable structure and performance under high-temperature environments.
Gas Sensitivity
Sensitive to gases such as carbon dioxide (CO₂) and ammonia (NH₃), making it useful for gas detection applications.
- Applications of Nano Tungsten Oxide
Catalysts
- Catalyst Carrier: Used as a carrier for catalysts in hydrogenation, oxidation, dehydrogenation, and other reactions.
- Industries: Widely applied in chemical, petroleum, and pharmaceutical industries.
Optoelectronic Devices
- Examples: Solar cells, sensors, and photocatalysts.
- Utilization: Leveraging its excellent optical properties.
Electronic Materials
- Applications: Manufacturing high-temperature electronic devices such as thermoelectric generators and solid-state batteries.
Biomedical Applications
- Uses: Manufacturing medical optical materials, antibacterial materials, and drug delivery materials.
- Additional Applications: Tumor treatment and disease detection.
Sensors
- Humidity Sensors: High-crystallinity nano tungsten oxide powder, due to its unique crystal structure and superior performance, plays a key role in the next-generation high-quality humidity sensors.
- Preparation Methods
Chemical Synthesis Methods
- Examples: Precipitation method, hydrothermal method.
- Process: Preparation of nano tungsten oxide through chemical reactions.
Hydrothermal Method
- Process: Formation of nano particles by inducing tungsten ions to form nano particles in a high-temperature and high-pressure aqueous solution.
- Advantages: Results in small particle sizes with narrow distribution.
High-Energy Ball Milling Method
- Process: Utilizes high-speed rotating ball mills to grind particles, obtaining nano tungsten oxide with small particle sizes and uniform distribution.
Nano tungsten oxide (WO₃) possesses extensive data across various dimensions, including its basic composition and morphology, intrinsic properties, diverse applications, and multiple preparation methods. This comprehensive data highlights the versatility and potential of nano tungsten oxide in numerous fields such as catalysis, optoelectronics, electronics, biomedicine, and sensor technology.
Summary
Nano tungsten oxide exhibits a wide range of properties and applications, supported by detailed and comprehensive data. Its high surface area, excellent optical and thermal stability, and gas sensitivity make it a valuable material in many advanced technologies. The various preparation methods allow for tailored properties to meet specific application needs, further enhancing its versatility and effectiveness in different industrial and scientific domains.
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