Platinum nanoparticles

Platinum nanoparticles are especially interesting in catalysis, as platinum is one of the most important materials used in catalytic techniques. Hydrogen, oxygen and other gases become bound to platinum. In the form of nanoparticles, platinum has a substantially higher effectiveness because of the increased specific surface area. At sizes of 10 nm, 20 % of the platinum atoms directly interact with the surroundings of the nanoparticle.

In this context, a current Nature Chemistry publication explains that purity of nanoparticles from gold or platinum leads to higher catalytical activity. However, removing ligands from chemically synthesized metal nanoparticles involves effort and costs and is not completely realizable, which speaks for laser ablation as a physical method without impurifications.

Platinum also has slight toxic effects on human cells and is therefore used for commercial cancer therapy. With the help of core-shell nanoparticles, a selective effect on tumor cells can be achieved.

In new nanoparticle applications, the conductivity of the metal can be used to achieve an increased storage density. For platinum nanoparticles that were inserted into certain viruses, a bi-stable memory effect was proven, in which between two states, a conductivity difference of 3 orders of magnitude was upheld.

Particular^® offers highly pure, non-agglomerated platinum nanoparticles in water as well as other solvents such as acetone. The particles are available with different hydrodynamic diameters between 10 and 80 nm and, due to our production process, dispersed electrostatically stable in the colloid.

Examples from our nanoparticle catalogue
(price list as of September 15, 2011):

Please contact us for details and customized quotes.