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Nanoparticle characterization

Christian  Kallesøe

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Nanoparticle characterization


Understand your nanomaterial’s size, surface area and porosity through our expertise within nanoparticle characterization.

Want to understand and improve your nano product? Our specialists can help you determine the properties of your product with the wide range of state-of-the-art equipment that we have at our disposal.

Our characterization techniques can optimize:

  • monolith coatings
  • inks for fuel cells
  • spray coating
  • ink jet printing
  • pharmaceutical products
  • etc.

In the video above we show three of our characterization techniques: Physisorption (BET), Laser Scattering and Rotational Rheometry.

Surface Area and pore volume distribution with BET
Physisorption can be used for measuring the textural properties of solid powders including the surface area, pore volume and size distribution. These are crucial parameters to increase the chemical reaction rate of the catalytic nanomaterial. We apply this technique to metal oxides for exhaust catalysis, such as alumina or ceria, or in carbon-based supports, widely applied in fuel cell devices.

Characterization of particle dispersions and slurries
Many products containing micro or nanoparticles are often applied to the final product through a dispersion. To transfer the properties of the particles into the final product we need to understand the particle dispersion.

We can measure the size of the dispersed particles through laser diffraction or dynamic light scattering in both the micro and nanometer range. In addition, we can also measure the zeta potential of the particles, which is a determining factor for the stability of the dispersion.

Using a rotational rheometer, we can measure the viscous properties of the dispersion. These are important properties that determine the dispersion’s flow, adhesion and stability.

Combined analysis methods give the best results
At the department for Nano Production and Micro Analysis at Danish Technological Institute, we have more than 25 years of experience solving characterization tasks for our customers.

We often combine results from several separate types of state of art characterization equipment and can offer you a design of experiments that suits your materials requirements, in a short delivery time.

Contact
Please contact Team Manager Christian Kallesøe for more information. Christian Kallesøe can be reached at chkl@dti.dk or +45 7220 2570.