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What do we know about "nano effect" and chemical reactivity?
In the “nano” form, 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.
96 % of atoms on the surface
52 % of atoms on the surface
20 % of atoms on the surface
The smaller the particle size, the greater the relative number of atoms on the surface is.
The available atoms to a possible reaction are more large. But, all finely divided particles are not hyper-responsive.