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US 8,298,314 B2Granted
Silver nanoparticles and process for producing same
AssigneeXerox Corporation
InventorYuning Li
Life of this patent
Estimating the term…
Abstract
Processes for producing silver nanoparticles are disclosed. A reaction mixture comprising a silver compound, a carboxylic acid, an amine compound, and an optional solvent is optionally heated. A hydrazine compound is then added and the mixture is further reacted to produce the silver nanoparticles.
Claims24
A process for producing silver nanoparticles, comprising:
- forming a mixture comprising a silver compound, a carboxylic acid, an amine complexing agent, and an optional solvent;
- heating the mixture;
- adding a hydrazine compound to the heated mixture;
- and
- reacting the mixture at a temperature of from 50° C. to 100° C. to form silver nanoparticles having a particle size distribution width of from about 10 nanometers to about 30 nanometers.
2 more elements
A process for producing silver nanoparticles with a narrow particle size distribution width, comprising:
- forming a mixture comprising a silver compound, a carboxylic acid, a chelating diamine compound, and an optional solvent;
- optionally heating the mixture;
- adding a hydrazine compound to the mixture;
- and
- reacting the mixture at a temperature of from 50° C. to 100° C. for a period of from about 5 minutes to about 5 hours to form silver nanoparticles;
- wherein the silver nanoparticles have an average diameter of from about 1 to about 50 nanometers and a particle size distribution width of from about 10 nanometers to about 25 nanometers.
3 more elements
A process for producing silver nanoparticles, comprising:
- forming a mixture comprising a silver compound, a carboxylic acid, a chelating diamine compound, and an optional solvent;
- heating the mixture;
- adding a hydrazine compound to the heated mixture;
- and
- reacting the mixture at a temperature of from 50° C. to 100° C. to form silver nanoparticles.
2 more elements
Dependencies are inferred from the claim text.