Cathode for use in electrolysis and method for the production thereof
US4238311A · kind A · utility
12Cited by
8References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 2, 1979 |
| Grant date | Dec 9, 1980 |
| Priority date | — |
| Expiry date | Feb 2, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B11/091
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A cathode for use in electrolysis comprising (1) a substrate of iron or an alloy thereof; (2) a compact interlayer of Fe.sub.3 O.sub.4 formed on the substrate, and (3) a coating of activating nickel comprising principally nickel or an alloy thereof formed on the Fe.sub.3 O.sub.4 layer. In another embodiment, the interlayer (2) may be heat-treated to convert a part of the interlayer (2) into a nickel ferrite. The cathode is especially suitable for use in the electrolysis of an alkali metal halide, such as sodium chloride, using an ion exchange membrane method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.