Nanoparticles Nanoparticles as Catalysts in Chemical Reactions
Nanoparticles Nanoparticles as Catalysts in Chemical Reactions
Nanoparticles Nanoparticles as Catalysts in Chemical Reactions
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Nanoparticle Preparation• Impregnation- a metal nanoparticle precursordissolved <strong>in</strong> a solvent.- added to a porous support so that athick slurry is formed.- The solvent is then removed and thesolid is recovered and tested.• Co-precipitation- the metal and its support precipitatefrom solution at the same time.- Us<strong>in</strong>g this method metal nanoparticlescan become imbedded di<strong>in</strong>to porousmaterials.• Precipitation-Deposition- the dissociation of the metal precursorfollowed by a change <strong>in</strong> pH toprecipitate the nanoparticles onto thesurface of a support.<strong>Chemical</strong> Methodshttp://www3.<strong>in</strong>terscience.wiley.com/cgi-b<strong>in</strong>/fulltext/121637625/ma<strong>in</strong>.html,ftx_abs