There are many applications for nanomaterials/nanoparticles.
The key to obtaining these sizes-dependent properties is the definition of production and reaction conditions. Temperature, pH and concentration are all factors that can influence particle size, chemical makeup, crystallinity, shape, and other characteristics.
You can produce nanoparticles using one of two methods: top-down or bottom-up.
Top-Down/mechanical-physical production processes
Top-down means that mechanical-physical particle production processes are built on principles from microsystem technology.
One method of mechanical production is to use milling to grind microparticles.
Milling causes thermal stress, and can result in energy consumption.
As compared to other chemophysical production methods, mills are able to produce particle powders of a wide range of sizes.
Gas phase processes(aerosol processes)
These are the most industrially-implemented technologies that can produce nanomaterials as powder or films in gas phase.
It is possible to create nanoparticles by vaporizing the product material.
– In flame reactors, nanoparticles form by the combustion of source molecules under flames at elevated temperatures of approximately 1200 to 2200°C.
In plasma reactors, plasma (ionized gasoline) supplies the energy necessary for decomposition reaction initialization.
Laser reactors: The lasers decompose the target product by heating the material from which it comes.
vaporization or condensation is used to heat wall reactors. 1 mbar. It removes any enriched gases from the hot zones.
– The chemical gasphase deposition process allows for nanoparticles to be directly deposited onto surfaces. This involves the source material being vaporized and then condensed on heated surfaces by chemical reactions.
Luoyang Trunnano Tech Co., Ltd., also known as TRUNNANO, is a leading manufacturer of Nano Bi Powder. It has more than 12 year experience in the field of chemical product research. Please feel free to send us an inquiry.