Making metal and bimetal nanostructures with controlled morphology
US9539643B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2010 |
| Grant date | Jan 10, 2017 |
| Priority date | — |
| Expiry date | May 18, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F1/0547
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of making metal nanostructures having a nanometer size in at least one dimension includes preparing an aqueous solution comprising a cation of a first metal and an anion, and mixing commercial elemental powder particles of an elemental second metal having a greater reduction potential than the first metal with the aqueous solution in an amount that reacts and dissolves all of the second metal and precipitates the first metal as metal nanostructures. The temperature and concentration of the aqueous solution and the selection of the anions and the second metal are chosen to produce metal nanostructures of a desired shape, for example ribbons, wires, flowers, rods, spheres, hollow spheres, scrolls, tubes, sheets, hexagonal sheets, rice, cones, dendrites, or particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.