Method of forming a nano-supported sponge catalyst on a substrate for nanotube growth
US6596187B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2001 |
| Grant date | Jul 22, 2003 |
| Priority date | — |
| Expiry date | Jan 17, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/893
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of forming a nano-supported sponge catalyst (10) on a substrate (12) is comprised of depositing an active catalytic metallic element (16) on the substrate (12) and depositing a structural metallic element (18) with the active catalytic metallic element (16) to form a mixed metal alloy layer (14). The method is further comprised of etching the mixed metal alloy layer (14) with an etchant to oxidize the active catalytic metallic element (16) and the structural metallic element (18) and to remove at least a portion of the structural metallic element (18) from a first sub-layer of the mixed metal alloy layer (14). The first sub-layer of the mixed metal alloy layer (14) is porous and comprised of nano-particles of the active catalytic metallic element (16) that are supported by a metal oxide structure derived from the structural metallic element (18).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.