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US 7,270,694 B2Granted
Stabilized silver nanoparticles and their use
AssigneeXerox Corporation
InventorsYuning Li, Yiliang Wu, Beng S. Ong
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Abstract
A process comprising: reacting a silver compound with a reducing agent comprising a hydrazine compound in the presence of a thermally removable stabilizer in a reaction mixture comprising the silver compound, the reducing agent, the stabilizer, and an optional solvent, to form a plurality of silver-containing nanoparticles with molecules of the stabilizer on the surface of the silver-containing nanoparticles.
Claims21
A process comprising:
- reacting a silver compound with a reducing agent comprising a hydrazine compound in the presence of a thermally removable stabilizer in a reaction mixture comprising the silver compound, the reducing agent, the stabilizer, and an organic solvent, to form a plurality of silver-containing nanoparticles with molecules of the stabilizer on the surface of the silver-containing nanoparticles wherein the hydrazine compound is a hydrocarbyl hydrazine, a hydrocarbyl hydrazine salt, a hydrazide, a carbazate, a sulfonohydrazide, or a mixture thereof and wherein the stabilizer includes an organoamine.
A process comprising:
- (a) reacting a silver compound with a reducing agent comprising a hydrazine compound in the presence of a thermally removable stabilizer in a reaction mixture comprising the silver compound, the reducing agent, the stabilizer, and an organic solvent, to form a plurality of silver-containing nanoparticles with molecules of the stabilizer on the surface of the silver-containing nanoparticles wherein the hydrazine compound is a hydrocarbyl hydrazine, a hydrocarbyl hydrazine salt, a hydrazide, a carbazate, a sulfonohydrazide, or a mixture thereof and wherein the stabilizer includes an organoamine;
- (b) isolating the plurality of silver-containing nanoparticles with the molecules of the stabilizer on the surface of the silver-containing nanoparticles;
- and
- (c) preparing a composition including a liquid and the plurality of silver-containing nanoparticles with molecules of the stabilizer on the surface of the silver-containing nanoparticles.
1 more element
A process comprising:
- (a) depositing a composition comprising a liquid and a plurality of silver-containing nanoparticles with a stabilizer on a substrate by a liquid deposition technique to form a deposited composition, wherein the silver-containing nanoparticles are obtained by reacting a silver compound with a reducing agent comprising a hydrazine compound in the presence of a thermally removable stabilizer in a reaction mixture comprising the silver compound, the reducing agent, the stabilizer, and an organic solvent wherein the hydrazine compound is a hydrocarbyl hydrazine, a hydrocarbyl hydrazine salt, a hydrazide, a carbazate, a sulfonohydrazide, or a mixture thereof and wherein the stabilizer includes an organoamine;
- and
- (b) heating the deposited composition to form an electrically conductive layer comprising silver.
Dependencies are inferred from the claim text.