vtt has developed a new process for synthesis of nanoparticles
DESCRIPTION
VTT has developed a new award winning process for synthesis and tailoring of metallic nanoparticles. The process is based on gas-phase reduction of metal chloride precursors. VTT’s pilot reactor operates in atmospheric pressure, its capital and operating costs are low. The process is continuous, flexible and materials can be produced for a wide variety of applications.TRANSCRIPT
Synthesis and flexible tailoring of
nanomaterials in pilot scale
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VTT pilot for nanoparticle synthesis
Objectives of the TIPU pilot facility Production of metallic NPs 200 – 3000 g/d.
A week long continuous operation.
Operating costs close to 100 €/kg.
Possibility to produce wide range of metals and compounds.
Simple and rugged design applicable for industrial use.
Remote control of the facility by one operator.
Benefit for the customer
Possibility to obtain a significant
amount of metallic nanomaterials
at a reasonable price.
The materials can be tailored for
the application.
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Benefits of VTT’s synthesis process Versatile facility for production of various metals and composites.
Ag, Al, Au, Bi, Cd, Cr, Co, Cu, Fe, Hg, In, Gd, Mo, Nb, Ni, Pd, Pt, Sb, Sn, Ta, Ti, V , W, Zn, Si and B
Online monitoring and control of the production.
In-situ coating of the produced particles with graphitic carbon.
No use of water or production of liquid waste.
Synthesis of nanoparticles with hydrogen reduction
1 0 n m
Ni Co2B+C Si Ni-Fe
4
Metals
Metals on support
Non-metals Carbon coated
metals
Metal alloys
Diversity of produced materials
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Atmospheric pressure Investment costs for the pilot facility
< 170 k€.
Small pumping power required.
High concentration of particles
(> 10 g/m3) High production rate achievable.
Consumption of gasses very moderate.
Benefits of VTT’s production approach
Precursors and gasses Metal salts are among the cheapest precursors
available.
Only nitrogen, hydrogen and ethene used as
reaction gasses.
Moderate reaction temperature (900°C) Steel is suitable construction material.
Low energy consumption.
Very small losses to the facility.
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Metallic nanoparticle dispersions Conductive and magnetic inks
Medical diagnostics and targeted drug delivery
Water purification and desalination
Magnetic polymer composites Anti-counterfeit
EM Shielding materials
Microwave reflection damping
Silicon based materials for energy applications Li-ion battery materials
Thermoelectric devices
Solar cells
VTT offers feasibility studies
5 6 7 8 9 10 11 12 13 14 15-30
-25
-20
-15
-10
-5
0
freq / GHz
S11
/ d
B
d=2 mm
d=2.5 mm
d=3 mm
d=3.5 mm
d=4 mm
7
Please contact Mr Riku Rikkola
Business Development Manager
VTT Technical Research Centre of Finland
+358 40 725 9091