Metal phosphate sols, metal nanoparticles, metal-chalcogenide nanoparticles, and nanocomposites made therefrom
AssigneeAPS Laboratory
InventorHong-Son Ryang
Life of this patent
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Abstract
Disclosed are metal phosphate sols made by mixing at least one metal oxide, at least one phosphate precursor, at least one organosilane, and a liquid. Also disclosed are nanocomposites containing the metal phosphate sols and at least one of metal nanoparticle and metal-chalcogenide nanoparticle. The nanocomposites containing metal nanoparticles may be chalcogenized to provide nanocomposites containing metal-chalcogenide nanoparticles. Also disclosed are composites containing a dielectric material such as a polymer and at least one of the metal phosphate sol and the nanocomposite.
Claims21
A nanocomposite comprising:
- from about 0.01% to about 80% by weight of at least one of guest metal nanoparticle and guest metal-chalcogenide nanoparticle;
- and
- from about 20% to about 99.99% by weight of a host metal phosphate sol made by mixing:
- at least one metal oxide, wherein the metal is a transition metal, a post-transition metal, an alkali metal, or alkaline earth metal;
- at least one phosphate precursor selected from the group consisting of alkylphosphates and polyphosphoric acid esters;
- at least one organosilane;
- and
- a liquid.
A method of making a nanocomposite, comprising;
- mixing at least one of metal nanoparticle and metal-chalcogenide nanoparticle;
- at least one metal oxide, wherein the metal is a transition metal, a post-transition metal, an alkali metal, or alkaline earth metal;
- at least one phosphate precursor selected from the group consisting of alkylphosphates and polyphosphoric acid esters;
- at least one organosilane;
- and a liquid to provide the nanocomposite.
A method of making a metal-chalcogenide nanocomposite, comprising:
- mixing at least one guest metal nanoparticle;
- at least one metal oxide, wherein the metal is a transition metal, a post-transition metal, an alkali metal, or alkaline earth metal;
- at least one phosphate precursor selected from the group consisting of alkylphosphates and polyphosphoric acid esters;
- at least one organosilane;
- and a liquid to provide a host-guest metal phosphate sol, and chalcogenizing the host-guest metal phosphate sol to provide the metal-chalcogenide nanocomposite.
Dependencies are inferred from the claim text.