Structural and electronic properties of finely-divided supported Pt-group metals and bimetals

Abstract

Finely dispersed platinum and platinum–ruthenium particles, characterized initially by transmission electron microscopy, are shown by X-ray absorption and X-ray scattering techniques to retain their face centred cubic structure. The electron density of these particles of colloidal dimension, judging from white-line intensities, seems to be enhanced by the polymeric macro-ligand to which they are bound.