Nano blue tungsten oxide is a tungsten oxide with a unique blue luster. Its main characteristics are as follows:
I. Physical Properties
Color Appearance: It appears as a blue to deep blue powder, with a potentially richer color under sunlight.
Specific Surface Area: Offering a variety of nanoscale particle size options, it possesses a high specific surface area, enhancing reaction activity and dispersion performance.
Thermal Stability: With a melting point of approximately 1000°C and excellent thermal stability, it is unlikely to react with other substances under high temperature conditions.
II. Chemical Properties
Chemical Activity: It can be converted into tungsten trioxide (WO?) and other high-valent oxides in an oxidizing environment; under reducing conditions, it may transform into purple tungsten oxide (WO?.??) or tungsten dioxide (WO?).
Color-changing Effect: It exhibits photochromic and electrochromic capabilities, suitable for optoelectronic devices such as smart windows and display screens.
Gas Sensitivity: Highly sensitive to toxic gases such as nitrogen dioxide and ammonia, its nanoscale size enhances sensitivity for detecting low concentrations of gases, making it suitable for manufacturing gas sensors.
Thermal Insulation and UV Resistance: Effectively absorbs near-infrared and ultraviolet light, suitable for transparent thermal insulation coatings, heat-insulating glass, and other fields, reducing temperature rise and UV damage.
III. Versatile Applications
Optoelectronic Industry: As a photosensitizer in solar cells, it enhances photoelectric conversion efficiency; due to its gas and light sensitivity, it can be used to prepare gas sensors, photoelectric sensors, and more.
Construction Industry: With excellent thermal insulation and UV resistance properties, it is used in transparent thermal insulation coatings for buildings and automotive glass, improving energy efficiency and comfort.
Catalysis Field: Serving as a catalyst in petrochemical processes, it optimizes reaction processes, increasing yield and selectivity; it is also used in environmental treatment, leveraging its outstanding photocatalytic performance to aid in environmental purification, such as waste gas and wastewater treatment.
Energy Storage: As a cathode material for lithium-ion batteries, it enhances energy density, cycle stability, and safety, meeting the needs of electric vehicles and portable electronic devices.
Ceramics and Pigments: With its unique blue luster and chemical stability, it is a preferred choice for coloring ceramics, adding color and texture; simultaneously, it can be used to prepare various pigments to meet diverse color needs.
Other Important Applications: As a key raw material for preparing metallic tungsten, it serves as an additive to enhance the performance of alloy steel in production; its high temperature resistance and thermal insulation properties make it suitable for manufacturing fire-resistant fabrics; in addition, nano blue tungsten oxide has broad application potential in fields such as information and communication and electronic materials.
