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Preparation of colloidal dispersion of nickel, palladium and platinum by the polymer-catalyzed decomposition of carbonyl compounds thereof
Preparation of colloidal dispersion of nickel, palladium and platinum by the polymer-catalyzed decomposition of carbonyl compounds thereof
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机译:聚合物催化分解羰基化合物制备镍,钯和铂的胶态分散体
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摘要
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 dispersions may be used per se as catalysts, or may be used for the preparation of supported colloidal transition metal catalysts. The dispersions may also be used for the preparation of ablative optical recording media.
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