Description of Nano Vanadium Oxide Powder (VO2)
Vanadium dioxide is a thermochromic material with a pure vanadium dioxide phase transition temperature of 68 °C.
When the temperature is higher than the phase transition point, VO2 is in a metallic state, the visible light region remains transparent, and the infrared light region is highly reflective. The infrared light portion of the solar radiation is blocked outdoors, and the transmittance to infrared light is small; when the temperature is lower than 68°C, VO2 is in a semiconductor state and is moderately transparent from the visible to the infrared region, allowing most of the solar radiation (including visible light and infrared light) to enter the room, and the transmittance is large, and the change is reversible. Based on these characteristics, VO2 has been widely used in surface layers, sensors, and imaging, as well as in potential applications in storage devices.
The phase transition temperature can be lowered to room temperature by doping tungsten.
Specifications of Nano Vanadium Oxide Powder (VO2)
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Purity
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99.5 %
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CAS No.
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12036-21-4
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Molecular formula
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VO2
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Molecular weight
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82.94
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Particle size
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50 nm, 80 nm, 100 nm
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Appearance
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Black powder
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Phase transition temperature
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68 ℃
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Crystalline phase
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M
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Applications of Nano Vanadium Oxide Powder (VO2)
1. Smart Windows: VO2 enables dynamic modulation of infrared transmission, reducing energy consumption by controlling indoor temperature and light.
2. Sensors: Ideal for temperature sensors and infrared detectors due to significant changes in conductivity and optical properties in response to temperature.
3. Energy Storage: Enhances batteries and supercapacitors with high capacity, stability, and conductivity, improving efficiency.
4. Catalysis: VO2's catalytic properties enhance chemical reactions, aiding in hydrogenation and organic compound oxidation.
5. Thermochromic Coatings: VO2-based coatings create materials that change color with temperature, useful in indicators and architectural coatings.
6. Electronics: Promising for high-speed switches and novel electronic components due to its unique electrical conductivity alterations.
7. Medical Applications: Explored for biomedical use like drug delivery systems, leveraging biocompatibility and tunable properties.
Packing of Nano Vanadium Oxide Powder (VO2)
Our Nano Vanadium Oxide Powder is clearly tagged and labeled externally to ensure efficient identification and quality control. Great care is taken to avoid any damage which might be caused during storage or transportation.
Q1: What is Nano Vanadium Oxide Powder?
Nano Vanadium Oxide Powder refers to vanadium oxide particles synthesized at the nanometer scale, typically ranging between 1-100 nanometers in size. It exhibits unique physical, chemical, and electrical properties compared to its bulk counterpart.
Q2: What are the main applications of Nano Vanadium Oxide Powder?
Energy Storage: Used in lithium-ion batteries, supercapacitors, and redox flow batteries.
Smart Windows and Displays: Electrochromic properties allow use in glass and display technologies.
Catalysts: Acts as a catalyst in industrial processes such as sulfuric acid production.
Sensors: Used in gas sensors to detect harmful gases.
Optoelectronics: Utilized in electronic devices due to its semiconducting nature.
Q3: How is Nano Vanadium Oxide Powder synthesized?
Common synthesis methods include:
- Sol-Gel Process: Uses chemical precursors to form nanomaterials.
- Hydrothermal Methods: Crystallization occurs under high pressure and temperature.
- Chemical Vapor Deposition (CVD): Grows films or particles on surfaces.
- Solution Combustion: Rapid synthesis using exothermic chemical reactions.
