Process for forming highly dispersed metal on graphite
US4313853A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1980 |
| Grant date | Feb 2, 1982 |
| Priority date | — |
| Expiry date | Dec 11, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2235/15
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for forming a dispersion of metal selected from the group consisting essentially of Ni, Co, Mo and mixtures thereof on graphite comprising heating a composite of said metal on graphite at a temperature between about 800.degree.-975.degree. C. in an inert, hydrogen-containing atmosphere to form metal-containing channels in the graphite, raising the temperature to at least about 975.degree. C. so that the metal in the channels spreads out and chemically wets the surface of the channels as a film of metal phase, followed by contacting the so-formed metal-wetted, channeled composite with an oxidizing atmosphere to break up the film of metal phase into discrete metal particles. The average diameter of the particles is generally below about 25 A and the preferred metal is nickel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.