CNRS Technologies

Find the best CNRS technologies to boost your innovative project.

Newest patents

You are a research scientist?

We can guide you through the whole technology transfer process.

See all our services

You are a corporate player?

Thanks to our expertise, our network and our know-how of the innovation ecosystem, we support you throughout your project.

Contact us

Follow our news and upcoming events

Discover CNRS technologies

Meet our team

Close

Nanpoparticles synthesis

Reference

02665-01

Patents status

Priority patent application FR09 55023 filed on July 20, 2009 and entitled “Synthèse de particules par thermohydrolyse de précurseurs minéraux.”

Inventors

Frédéric Bernard
Frédéric Demoisson
Moustapha Ariane
Daniel Aymes
Hervé Muhr

commercial status

Exclusive or non-exclusive license, collaboration to test our particles

Laboratory

Description

CONTEXT

Nanopowders are of great interest due to their specific properties. There are various production routes but quality of the powders ie composition, size and size distribution, crystallography… may vary from one another.

TECHNICAL DESCRIPTION

The present invention relates to a method for continuously preparing mineral particles by means of the thermolysis of mineral precursors in an aqueous medium. The reactive flow (including mineral precursors) and the heat transfer flow (countercurrent) are put in contact and conveyed into a tubular reactor, inside of which particles are formed.
Control of the precursors quality as well as process parameters allow the control of the powders’ quality

The powders may also be functionalized online in the same equipment (iron oxide for medical imaging known as USPIO, for example, have been produced)

DEVELOPMENT STAGE

Samples are regularly produced; the quality of our powders has been reported as higher than commercial ones.
New equipments shall allow a production of 50g -100g lots in Q2 2016 (limitation for the moment linked to post treatment of the solutions obtained )
Mixing with other material and compaction or sintering also possible.

BENEFITS

  • Continuous process
  • Homogenous and controlled composition and morphology.
  • Monodisperse powders
  • Sizes are smaller than 500 nm, and more particularly smaller than 100 nm.
  • Nanoparticles produced in aqueous solution : no free powders  to handle (but may be dried and mixed with other components on demand)

INDUSTRIAL APPLICATIONS

Cosmetic, Electronics, Ballistic, Medical imaging, energy
Material reinforcement (Metal/ ceramic  Matrix Composites)

For further information, please contact us (Ref 02665-01)

Need further information ?

Contact us
Close

Contact us

  • This field is for validation purposes and should be left unchanged.
Close

Newest patents