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Monodisperse 8 nm Pt nanocubes are synthesized by reducing Pt(acac)2 in the presence of oleic acid, oleylamine, and a trace amount of Fe(CO)5. Self-assembly of these nanocubes results in a (100) textured array. The nanocubes show an enhanced catalysis toward oxygen reduction, and their specific activity is over twice as high as that from the commercial Pt nanoparticles.
Wang et al. (2007) studied this question.