Method of preparing active electrodes
US4358475A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1981 |
| Grant date | Nov 9, 1982 |
| Priority date | — |
| Expiry date | Mar 11, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/36
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
This invention relates to a method of producing metal electrodes by treating a metal electrode substrate so as to coat the substrate surface with a homogeneous solution of the compounds of (i) at least one metal selected from a first group of iron, cobalt, nickel and manganese (ii) at least one other metal selected from a second group of molybdenum, tungsten and vanadium, each of which compound is capable of thermal decomposition to the corresponding metal oxide. The coated substrate is then thermally decomposed and the oxide-coated substrate is cured in a reducing atmosphere at elevated temperature. Substrates coated with Ni-Mo oxides are preferred. The electrodes thus produced exhibit very low overvoltage, are of high stability with respect to their activity and can be used as cathodes for the electrolysis of water or brine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.