Nano yellow tungsten, or nano tungsten trioxide (WO3), is an important inorganic nanomaterial. Below is a detailed explanation of Nano Flavotungsten:
Definition of Nano Flavotungsten
Nano yellow tungsten refers to tungsten trioxide powder with a particle size in the nanometer scale, whose chemical formula is WO3 and has a light yellow appearance. Due to its nano-scale particle size, nano yellow tungsten has many unique physical and chemical properties, and these properties make it have a wide range of application prospects in many fields.
Basic properties of tungsten yellow nanoparticles
Appearance and color of nano yellow tungsten
Nano yellow tungsten appears light yellow, which is one of its most intuitive features.
Physical state of nano tungsten yellow
It usually exists in powder form, with particle size in nanometer level and high specific surface area.
Solubility of Nano wolfram
Insoluble in water, but soluble in alkali, slightly soluble in acid.
Thermal properties of nanometer yellow tungsten
The melting point is about 1470℃, the boiling point is between 1700~2000℃, and it sublimates significantly when it is higher than 800℃.
Density of nano wolfram
The density of nano yellow tungsten is about 7.2~7.4g/cm³.
Physical Properties of Nano wolfram
Photoelectric properties of tungsten oxide nanoparticles
As a wide bandgap n-type semiconductor material, nano tungsten yellow has a strong ability to absorb electromagnetic waves, which makes it potentially applicable in solar energy absorbing materials and stealth materials.
Catalytic Properties of Nano Flavotungsten
With large specific surface area and significant surface effect, nano-flavor tungsten is a good catalyst, which can be used as both main catalyst and co-catalyst, and has high selectivity for the reaction.
Application fields of nanometer tungsten oxide
Photocatalytic field
Nano tungsten yellow is excellent in photocatalytic degradation of organic matter, and can be used in environmental protection field such as organic dye pollution water treatment.
Energy field
In lithium-ion batteries, nano-flavor tungsten as an anode material has high energy density and cycle stability, which helps to improve the performance of the battery. In addition, it contributes to electronic conductivity and lithium ion diffusion, enabling lithium-ion batteries to achieve ultra-fast charging and discharging.
Environmental Monitoring
Nano-flavor tungsten can be used to make gas-sensitive sensors and gas-chromic devices, which have important applications in environmental detection. For example, it can be used to detect flammable gas leaks, humidity, highly toxic gases in the petrochemical industry, and hydrogen produced during the deterioration of power transformer oil.
Other fields
Nano yellow tungsten can also be used in reactions such as catalysts, catalytic conversion and catalytic oxidation, as well as in other fields where high performance materials are needed.
Preparation method of nano wolfram
There are various methods for the preparation of tungsten oxide nanoparticles, including sol-gel method, hydrothermal method, vapor phase deposition method, electrochemical method, etc. These methods have their own advantages and disadvantages. Each of these methods has its own advantages and disadvantages, and the appropriate method can be selected according to specific needs. For example, the sol-gel method is a commonly used preparation method, in which tungsten nanoparticles are obtained by mixing tungstate and organic matter to form a sol, and then gelling it through steps such as heating and drying, and finally calcining it.
Nano wolfram is a kind of nanomaterials with excellent performance and wide application prospects. With the continuous development of science and technology, its application fields will continue to expand and deepen.
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