Preparation and properties of well defined finely dispersed metals

Abstract

The preparation of dispersions of uniform metal particles of different morphologies, either by precipitation from homogeneous solutions in the presence of appropriate reducing agents or by phase transformation, is discussed. Specifically, the formation of colloidal cobalt, nickel, copper, iron, ruthenium, and palladium is described and the effects of various experimental conditions on the properties of the resulting powders are illustrated.