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What do we know about "nano effect" and chemical reactivity?

In the nanoform, the relative percentage of atoms on the surface is considerably higher; all properties of a material related to the exchange surface (and possibly chemical reactivity) will be stimulated. For the same mass, the adsorption capacity of a nanoparticle will be higher than that of a microparticle.

This simulation illustrates the very rugged aspect of different nanostructured surfaces. This feature gives them an exceptional reactivity.