Patent · US Expired

CCVD method for producing tubular carbon nanofibers

US7384668B2 · kind B2 · utility

2Cited by

7References

15Claims

0Family size

Assignee

Electrovac, Fabrikation Elektrotechnischer Spezialartikel Gesellschraft m.b.H. · AT

Inventors

Klaus Mauthner · Wien, AT
Erich Leister · Wien, AT
Ernst Hammel · Wien, AT

Key dates

Filing date	Feb 12, 2002
Grant date	Jun 10, 2008
Priority date	—
Expiry date	Sep 28, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S977/843
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The invention relates to a CCVD method for producing tubular carbon nanofibers on a support by catalytically depositing carbon out of the vapor phase. The inventive method is characterized in that a catalyst layer, which is deposited without current and which is based on nickel or cobalt, is applied to the support at least in places. Said catalyst layer is thermally activated before depositing carbon out of the vapor phase in a reducing atmosphere.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.