Nanoparticles Nanoparticles as Catalysts in Chemical Reactions

Other Metal NanoparticleCatalysts• A sample nanoparticle catalyst for the oxidation of methanol is Pt/Ru/Ni nanoparticle alloys.• Nanoclusters of silver atoms have been proven to be effective catalyst for ethyleneepoxidation.• Cluster of atoms are restricted by their method of creation, for example e-beam constructionof nanoclusters results in a minimum particle size of 20nm.• It has also been reported that the addition of base metals such as iron, cobalt and nickel toplatinum also improves the oxygen-reduction reaction rate, but these kinds of base metalsdissolve easily in the acidic environment of a PEFC where the catalyst is working, which is aproblem.http://www.indiana.edu/~bdlab/images/cryovlp.jpg