SKU: 29694259551

Vanadium dioxide nanoparticles

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Description

Vanadium dioxide nanoparticlesProduct Name NameVanadium dioxide nanoparticles(VO2) Product Overview Vanadium dioxide is a deep blue crystal powder with a monoclinic crystal structure, which can be industrially produced by gas reduction of ammonium vanadate or vanadium pentoxide (V2O5). VO2 is a amphoteric compound that is slightly soluble in water and equally soluble in acidic or alkaline solutions; When dissolved in acidic solution, it generates divalent vanadium oxide ions

Product Name

Name:Vanadium dioxide nanoparticles(VO2)

Product Overview

 

Vanadium dioxide is a deep blue crystal powder with a monoclinic crystal structure, which can be industrially produced by gas reduction of ammonium vanadate or vanadium pentoxide (V2O5). VO2 is a amphoteric compound that is slightly soluble in water and equally soluble in acidic or alkaline solutions; When dissolved in acidic solution, it generates divalent vanadium oxide ions (VO2+), which appear light blue; When dissolved in alkaline solution, it generates vanadate salts M2V4O9 or M2V2O5. VO2 is in a metastable state, where V4+is easily oxidized to V5+, exhibiting relatively weak antioxidant capacity. VO2 is a polycrystalline metal oxide with five main structures: VO2 (M), VO2 (R), VO2 (A), VO2 (B), and VO2 (C).


Technical Parameter

Size:00-300nm

Purity:4.2%

 

Product Features

 

Phase transition characteristics: Vanadium dioxide nanoparticles can achieve a reversible transition from insulating phase to metallic phase at a specific temperature (68 ¡ãC, accompanied by significant changes in conductivity and optical properties.

High specific surface area: Nanoscale vanadium dioxide particles have a larger specific surface area, which is beneficial for increasing their surface active sites and catalytic efficiency.

Strong chemical inertness: The surface of nano vanadium dioxide has a large number of active sites, but due to the small amount of surface vacancies, its chemical inertness is very strong, and its adsorption performance for various harmful gases is excellent.

Good stability: Nano vanadium dioxide has relatively high stability, thanks to its special structure of surface ion ripples, which enables it to maintain good performance in various environments.

High catalytic activity: Nanoscale vanadium dioxide particles have significantly improved catalytic activity due to their high specific surface area, making them suitable for various catalytic reactions.


Application Fields

 

Smart windows: By utilizing the phase transition properties of vanadium dioxide nanoparticles, smart windows can be prepared. At high temperatures, windows appear metallic, blocking heat transfer; At low temperatures, windows become transparent, allowing light to pass through. This smart window can automatically adjust its transparency according to changes in ambient temperature, improving energy efficiency.

Photoelectric switch: Based on the phase transition characteristics of vanadium dioxide nanoparticles, high-speed photoelectric switches can be prepared. By controlling the temperature, switching between different phase states can be achieved, thereby regulating the transmission of photoelectric signals. This type of photoelectric switch has important applications in fields such as information processing and data storage.

Sensors: Various sensors can be prepared by utilizing the significant changes in electrical and optical properties of vanadium dioxide nanoparticles during phase transition. For example, using changes in conductivity to sense physical parameters such as temperature, humidity, and pressure; Utilizing changes in optical properties for optical sensing and spectral analysis.

Catalyst: Nano vanadium dioxide is widely used as a catalyst for various catalytic reactions due to its high catalytic activity and strong chemical inertness. For example, it can be seen in reactions such as nitration, ethane dehydrogenation, methane oxidation, and hydrogenation of formic acid.


Related Information

Please e-mail for the detailed characterization data.

E-mail:[email protected]


 

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SKU: 29694259551

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