Nano Technology and Graphene Research Centre
PUSAT RISET PENGEMBANGAN INSTITUSI NANO TEKNOLOGI DAN GRAPHENE

Spray pyrolysis system for nanomaterial processing


Kode : ID PGSP0416


Technology Summary

Nano materials have already become an indispensable material for many industrial applications because of their unique size-dependent electrical, magnetic, mechanical, optical and chemical properties in which they fundamentally differ from those of the bulk materials. There are two well-known routes to synthesize inorganic nanoparticles called top down and bottom up processes. The bottom up processing approach is a particles synthesis process starting from atomic or molecular level to nanoparticles via liquid or gas phase process. Spray pyrolysis is one of an example of bottom up process in which the combination of liquid and aerosol processing are used. Print-G, Spray Pyrolysis system can be applied at temperatures of 100 degree Celcius to 700 degree Celcius. Spray Pyrolysis is complemented by an electrostatic precipitator (ESP), which serves as a particle catcher at the end of the system. Rated voltage of ESP is approximately 15 KV. Reactor chamber is divided into three sections, each section have a heating system (Khantal wire) and a temperature sensor (thermocouple). Total heating power of Spray Pyrolysis is 7.5 kilowatt.

Advantages

· High purity
· Multicomponent materials
· Controlled spread of the size distribution of the particles
· Size from less than 1 nm to 100 microns; nanophase materials
· Energy efficient in many cases
· Dry process
· Continuous process
· Environmentally safer than most competing processes
· Either a high- or a low-temperature process
· Simple unit operations

Potential Applications
· Laboratory
· Chemical Application

Type
· Spray Drying
· Spray Pyrolysis

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