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Electronic properties of small platinum particles as seen by NMR

Research paper by J. J. van der Klink

Indexed on: 01 Mar '89Published on: 01 Mar '89Published in: Zeitschrift für Physik D Atoms, Molecules and Clusters



Abstract

No doubt partially because of their catalytic activity, small platinum particles on mineral supports have been extensively studied by NMR during recent years. Here we will discuss these data in relation to the expected electronic properties of small metal particles. Experimentally, no quantum size effects are found, but the local densities of state at the Fermi energy show considerable site-dependence when going from the surface to the interior of the particle. Such effects have been theoretically predicted for an infinite film.