Amorphous metal/metallic glass electrodes for electrochemical processes
US5429725A · kind A · utility
Inventors
Key dates
| Filing date | Sep 16, 1994 |
| Grant date | Jul 4, 1995 |
| Priority date | — |
| Expiry date | Sep 16, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B1/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Metallic glass/amorphous metal electrodes produced by rapid solidification (i) having a structure that is either amorphous or nanocrystalline, (ii) containing the principal alloying element as Ni, (iii) containing alloying conditions of Co and Mo in the range of 0 to 8 at . %, and when combined with NI, represent 0.75 to 0.85 of the atomic fraction of the alloy, and (iv) containing metalloid elements comprised of one or more of the elements C,B,Si and P either singly or in combination to represent 0.15 to 0.25 atomic faction of the alloy. The electrodes have excellent thermal stability, improved stability in an aqueous electrolyte and can provide improved current efficiency--anodic overpotential performance. They are used in the electrolysis of aqueous electrolyte solutions such as mixtures of caustic and water in the production of oxygen and hydrogen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.