Method for producing carbon nanocoils
US7875256B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2008 |
| Grant date | Jan 25, 2011 |
| Priority date | — |
| Expiry date | May 19, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/843
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention discloses a method for producing carbon nanocoils, which comprises: providing a metal substrate; depositing a tin precursor on the substrate; heating the substrate with the precursor to a predetermined temperature to form a catalyst on the substrate; placing the substrate in a quartz tube furnace; and introducing carbon source gas and protective gas into the quartz tube furnace to allow carbon nanocoils to grow on the surface of the catalyst. Another method for producing carbon nanocoils is also disclosed, which includes: depositing a mixed solution of iron acetate and tin acetate on a substrate; heating the substrate with the mixing solution to a predetermined temperature to form a catalyst on the substrate; placing the substrate in a quartz tube furnace; and introducing carbon source gas and protective gas into the quartz tube furnace to allow carbon nanocoils to grow on the surface of the catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.