Manufacturing process of electrodes for electrolysis
US8337958B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2009 |
| Grant date | Dec 25, 2012 |
| Priority date | — |
| Expiry date | Oct 26, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25C7/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A process for manufacturing electrodes for electrolysis, including the steps of forming an arc ion plating undercoating layer comprising valve metal or valve metal alloy including a crystalline tantalum component and a crystalline titanium component on the surface of the electrode substrate comprising valve metal or valve metal alloy, by an arc ion plating method; heat sintering the electrode substrate to transform only the tantalum component of the arc ion plating undercoating layer into an amorphous substance; and forming an electrode catalyst layer on the surface of the arc ion plating undercoating layer including the valve metal or valve metal alloy including the tantalum component transformed to the amorphous substance and the crystalline titanium component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.