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Método económico de baja energía para producir nanopolvos óxidos con una pureza del 99,9%


Oferta Tecnológica
Una universidad checa ha desarrollado una planta piloto para probar su nueva tecnología de síntesis fotoinducida diseñada para la producción de nanopolvos óxidos con una pureza del 99,9%. El tamaño de las nanopartículas tiene una distribución estrecha y una gran calidad, independientemente del ámbito de producción, y sus precios son competitivos. El método utiliza reactivos naturales para que el proceso de producción sea comparativamente más ecológico. Se buscan socios interesados en establecer acuerdos de licencia.


Economical and low-energy method for production of nanopowder oxides with consistent purity of 99.9%
A Czech university has built a pilot plant to verify their new photo-induced synthesis designed for a production of nanopowder oxides with consistent purity of 99,9% . The nanoparticles´ sizes have a narrow distribution, consistent quality regardless the scope of production and competitive prices. It uses natural reagents so the production is comparatively more ecological. Partners for a licensing agreement are sought.
Current, commercially available nano-powder materials usually have insufficient quality, showing relatively large distribution of nanoparticle sizes. In addition, the declared purity often does not correspond with actual purity.

Commonly used methods for preparation of nanomaterials and nanocomposites (mostly sol-gel methods) require either large number of expensive, high-quality reagents or significant investments in instrumental devices (applied in spray pyrolysis or chemical vapour deposition).

Photo-induced synthesis on offer is characterized by a high chemical purity of formed nanoparticles, narrow size distribution of the nanoparticles, consistent quality and a competitive price. The size of prepared nanoparticles is easily controlled. This method, when combined with heat treatment, serves to prepare both doped and undoped multi-component nanomaterials with very high degree of influence between individual components.

The university has developed and tested a novel method for production of nanomaterials, involving photo-induction preparation based on UV irradiation of selected aqueous solutions. This technology produces top-class nano-powder oxides with consistent chemical purity of 99.9% or more. Based on internal calculations they can be manufactured with affordable prices.

The key benefit of the novel method lies in its capability to ensure consistent quality during mass production. This has been verified on a pilot plant, assembled and operated by the scientists. Particularly, it has been proven that there is a linear correlation between the increase of UV lamps power and the increase in production speed while the quality has remained unchanged.
Based on initial basic calculations, it is presumed that production will be competitive (initial price comparison towards major suppliers), especially because only minimum of chemicals need to be added to a production mixture so that the production is much less energetically demanding.

In addition, the production is ecological as the reagents used are of natural origin so they do not represent any burden for nature. To be specific, the scientists have tested the preparation of Y3Al5O12 (YAG - yttrium aluminium garnet) a ZnO (zinc oxide).

For the demonstration of this production, the researchers have concentrated on materials with high specific surface area and porosity. In essence, they have produced nano-powders as follows:

- Nano-powder, crystalline metal oxides (grain size 15-50nm)

- Ternary oxides like synthetic garnets, perovskites, spinels (grain size 30-100nm)

- Hydrated oxides and hydroxides with slightly crystalline structure and with high porosity and specific surface area

It is supposed that the production line will be capable to produce a large range of the top-class nanopowder oxides that can be characterized by following properties:

- Affordable/competitive price

- Excellent purity

- Narrow distribution of nanoparticle sizes

- High specific surface area and porosity

High-quality nanopowders are extensively used in research and development as:

- Precursors for preparation of further materials such as specialized ceramics, bio-conjugates and others

- Calibration standards for top-class analytic instruments

- Sorbents, catalysts, luminophores (optics, scintillation detectors)

Partners for a licensing agreement are sought.
Advantages and Innovations:
The method has been verified on a pilot plant.

Production has relatively low energy demand.

Constant quality of the output during mass production can be achieved.

Production is comparatively ecological as all reagents are of natural origin.

Chemical purity of the produced nanoparticles reaches 99.9% or more.

The production is price-competitive.
Stage of Development:
Prototype available for demonstration
Secret Know-how

Partner sought

Type and Role of Partner Sought:
Partners from relevant industries are sought for a licensing agreement.


Type and Size of Client:
Already Engaged in Trans-National Cooperation:
Languages Spoken:


Technology Keywords:
02007003 Materiales y polvos cerámicos
02007012 Materiales ópticos
02002016 Microingeniería y nanoingeniería
02007024 Nanomaterials