Back to results
US 8,876,937 B2Granted
Production of nanostructures
AssigneeInnova Dynamics, Inc.
InventorsSheng Peng, Arjun Srinivas, Tom Credelle, Andrew Loxley, Gayatri Keskar
Life of this patent
Estimating the term…
Abstract
Methods of producing nanowires and resulting nanowires are described. In one implementation, a method of producing nanowires includes energizing (i) a metal-containing reagent; (ii) a templating agent; (iii) a reducing agent; and (iv) a seed-promoting agent (SPA) in a reaction medium and under conditions of a first temperature for at least a portion of a first duration, followed by a second temperature for at least a portion of a second duration, and the second temperature is different from the first temperature.
Claims5
A method of producing nanowires, comprising:
- energizing
- (i) a metal-containing reagent;
- (ii) a templating agent;
- (iii) a reducing agent;
- and
- (iv) a seed-promoting agent (SPA)
- in a reaction medium and under conditions of a first temperature for at least a portion of a first duration, followed by a second temperature for at least a portion of a second duration, and the second temperature is different from the first temperature, wherein:
- the reaction medium includes an alcohol including at least three hydroxyl groups per molecule,
- the first temperature is less than 85° C.,
- the second temperature is less than 105° C. and is greater than the first temperature,
- the metal-containing reagent is silver nitrate,
- the templating agent is poly(vinylpyrrolidone),
- the reducing agent is an oxidized derivative of the alcohol,
- the SPA is sodium chloride, and
- an overall concentration of silver in the reaction medium, including ionic and elemental metal forms, is less than 0.1 molar.
12 more elements
Dependencies are inferred from the claim text.