Preparation of colloidal dispersions of nickel, palldaium...

Details Preparation of colloidal dispersions of nickel, palldaium... Preparation of colloidal dispersions of nickel, palldaium...

B - Operations, Transporting

01

J

252/63.D

B01J 31/28 (2006.01) B01J 31/06 (2006.01) B01J 35/00 (2006.01) B01J 37/02 (2006.01) G11B 7/251 (2006.01)

Patent

CA 1141360

ABSTRACT OF THE DISCLOSURE There is disclosed a method for the preparation of a homogeneous, physically stable dispersion of colloidal metal particles of a transition metal selected from the group consisting of nickel, palladium and platinum having a size in the range of from about 10 Angstrom units to about 200 Angstrom units. The method comprises preparing a solution of a functional polymer in an inert solvent, and incrementally adding thereto a transition metal precursor, at a temperature at which the transition metal precursor will become bound to the polymer and thermally decompose to produce elemental transition metal particles, the process being carried out in an inert atmosphere. Such of supported colloidal transition metal catalysts. The dispersions may also be used for the preparation of ablative optical recording media.

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