Anode electrolysis electrode material using precious metal-based amorphous alloy suitable for plastic processing and applicable to a bulk member
US5807468A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 1997 |
| Grant date | Sep 15, 1998 |
| Priority date | — |
| Expiry date | Apr 9, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B11/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An electrode having an excellent corrosion resistance and long service life even in a severe corrosive environment such as in NaCl solutions for anode electrolysis in which chlorine gas or the like is produced at a high potential from the alloy surface. The electrode of the invention is provided using a precious metal-based amorphous alloy which has a good plasticity processibility and is applicable to a large-sized component. The object is implemented by provision of an electrode material for anode electrolysis which utilizes a precious metal-based amorphous alloy which satisfies the general formula NM.sub.100-a-b-c Ni.sub.a Cu.sub.b P.sub.c wherein NM comprises one or two precious metal elements selected from Pd and Pt; a, b and c being atomic percent, satisfy that 30.ltoreq.a+b.ltoreq.45,3.ltoreq.b/a.ltoreq.7, and 18.ltoreq.c.ltoreq.25, respectively; Pt is contained from 10 to 30 atom percent (at. %); and wherein a temperature width .DELTA.Tx in the supercooled liquid region (.DELTA.Tx=Tx-Tg) has a width of 70 K or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.