Electrolysis of alkali metal chloride in a cell having a nickel-molybdenum cathode
US4248679A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 1979 |
| Grant date | Feb 3, 1981 |
| Priority date | — |
| Expiry date | Jan 24, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B11/091
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed herein is a cathode having an electroconductive substrate and a porous surface. The porous surface is characterized by containing a major portion of nickel and a hydrogen overvoltage reducing amount of molybdenum. The molybdenum may be present as elemental molybdenum, as an alloy with nickel, or as a molybdenum compound. Also disclosed is an electrolytic cell having an anode, a cathode, and a separator between the anode and cathode, where the cathode is characterized by a porous surface having a major portion of nickel and a hydrogen over voltage reducing amount of molybdenum, which molybdenum may be present as elemental molybdenum, and molybdenum alloy with nickel or a molybdenum compound. Further disclosed is a method of electrolyzing an alkali metal chloride brine by passing an electrical current from an anode to a cathode to evolve chlorine at the anode and hydroxyl ion at the cathode. The cathode is characterized by a porous surface containing a major portion of nickel and hydrogen overvoltage reducing amount of molybdenum. Also disclosed is a method of preparing a porous nickel electrode by flame spraying nickel bearing particles, leachable constituent bearing parti…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.