Biomimetic approach to low-cost fabrication of complex nanostructures of metal oxides by natural oxidation at low-temperature
US7485488B2 · kind B2 · utility
3Cited by
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16Claims
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Key dates
| Filing date | Apr 13, 2005 |
| Grant date | Feb 3, 2009 |
| Priority date | — |
| Expiry date | May 1, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/892
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A metal oxide nanostructure is formed by oxidizing metallic metal in the presence of a solution containing a liquid ligand to form a metal-ligand complex, and decomposing the metal-ligand complex to form the metal oxide nanostructure. The metal-ligand complex can be a complex of zinc or copper with formamide. In one form, the nanostructure forms ZnO nanorods having a diameter of 10 to 1000 nm, where the nanorods having a hexagonal crystallographic morphology, and the nanorods are oriented perpendicular to a substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.