Process for making catalytically active Raney nickel electrodes
US4169025A · kind A · utility
41Cited by
3References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 15, 1978 |
| Grant date | Sep 25, 1979 |
| Priority date | — |
| Expiry date | May 15, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A process for making an electrode having a Raney nickel surface layer of thickness greater than 75 microns and an average porosity of at least 11%, comprising interdiffusing aluminum and nickel on a conductive metal core at a temperature of at least 660.degree. C. to form a nickel-aluminum alloy layer on the core from which layer aluminum is selectively dissolved. When used as a cathode in an electrolytic cell for producing hydrogen, chlorine and caustic from brine, the electrode exhibits low hydrogen overvoltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.